Encyclopedia Astronautica
April 11


April 11 Chronology


1930 April 11 - . Launch Vehicle: Mirak; Oberth.
  • VfR evening in Berlin - . Nation: Germany. Related Persons: Winkler; Oberth. Summary: The VfR presents itself to the scientific community in Berlin. Winkler gives a lecture at the auditorium of the Central Post Office, and the Oberth rocket, Kegelduese, and other articles are displayed..

1932 April 11 - .
1941 April 11 - .
1942 April 11 - .
  • Birth of Anatoli Nikolayevich Berezovoi - . Nation: Russia. Summary: Russian pilot cosmonaut. Flew on Salyut 7 EO-1. Graduated from Air Force Academy. Retired for medical reasons (due to injuries he received as the victim in an armed robbery). From 1992 to 1999, Deputy President, Russian Space Federation..

1943 April 11 - .
  • First hybrid rocket tested. - . Nation: USA. Summary: California Rocket Society tested first hybrid rocket design in United States, using oxygen and carbon..

1947 April 11 - .
  • XS-1 Flight 28 - . Crew: Goodlin. Payload: XS-1 # 1 flight 12. Nation: USA. Related Persons: Goodlin. Class: Manned. Type: Manned rocketplane. Spacecraft: XS-1. Summary: Bell flight 12. Nosewheel damaged. First powered flight of XS-1 # 1 aircraft. At Muroc Dry Lake, California..

1949 April 11 - . 22:05 GMT - . Launch Site: White Sands. Launch Complex: White Sands LC33. LV Family: V-2. Launch Vehicle: V-2. LV Configuration: V-2 50.
  • UM-3 Aeronomy / solar x-ray / biology mission - . Nation: USA. Agency: USA; UM. Apogee: 85 km (52 mi). Summary: Launched 15:05 local time. Reached 87.4 km. Carried Temp, composition, solar radiation (Naval Research Lab); biological experiments for Signal Corps Engineering Lab, University of Michigan..

1950 April 11 - . Launch Site: White Sands. LV Family: Nike. Launch Vehicle: Nike. LV Configuration: Nike 47R.
  • Test mission - . Nation: USA. Agency: USA. Apogee: 10 km (6 mi).

1951 April 11 - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LA. Launch Vehicle: Lark. LV Configuration: Lark 231. FAILURE: Failure.
  • Test mission - . Nation: USA. Agency: USAF. Apogee: 0 km ( mi).

1954 April 11 - .
  • X-1A Flight 13 - . Crew: Murray. Payload: X-1A flight 13. Nation: USA. Related Persons: Murray. Class: Manned. Type: Manned rocketplane. Spacecraft: X-1A. Summary: AF flight 7. Date estimated..

1955 April 11 - .
  • Birth of Piers John Sellers - . Nation: UK; USA. Summary: British-American ecologist mission specialist astronaut. Flew on STS-112, STS-121, STS-132..

1955 April 11 - . Launch Site: White Sands. LV Family: Nike. Launch Vehicle: Nike. LV Configuration: Nike 1658T.
  • Test mission - . Nation: USA. Agency: USA. Apogee: 10 km (6 mi).

1957 April 11 - . LV Family: Vanguard. Launch Vehicle: Vanguard.
  • Vanguard payload tested on sounding rocket. - . Nation: USA. Program: Vanguard. U.S.-IGY scientific satellite equipment, including a radio transmitter and instruments for measuring temperature, pressure, cosmic rays, and meteoric dust encounters, was tested above earth for the first time, as a rocket containing this equipment was fired by the Navy to a 126-mile altitude.

1957 April 11 - . Launch Site: Kapustin Yar. LV Family: R-11. Launch Vehicle: R-11M.
  • Test mission - . Nation: USSR. Agency: Korolev. Apogee: 200 km (120 mi).

1957 April 11 - . 16:31 GMT - . Launch Site: White Sands. Launch Complex: White Sands LC35. LV Family: Aerobee. Launch Vehicle: Aerobee Hi. LV Configuration: Aerobee Hi NRL 40 (RV-N-13c).
  • Vanguard test Satellite test - . Nation: USA. Agency: NRL. Apogee: 204 km (126 mi). Summary: Vanguard test. Rocket performance, satellite instrumentation test. Launched at 0931 local time. Reached 204 km..

1958 April 11 - .
  • Filial 1 of OKB-456 defined. - . Nation: USSR. Summary: State Committee for Defence Technology (GKOT) Decree 'On creation of Branch No. 1 of OKB-456' was issued..

1958 April 11 - . Launch Site: San Clemente. LV Family: Polaris. Launch Vehicle: Polaris TV.
  • Test mission - . Nation: USA. Agency: USN. Apogee: 500 km (310 mi).

1959 April 11 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: Kosmos 2. Launch Vehicle: R-12.
  • - . Nation: Ukraine. Agency: MVS. Apogee: 402 km (249 mi).

1960 April 11 - .
  • USAF/NASA hypersonics conference. - . Nation: USA. Spacecraft: Dynasoar. Summary: The Air Force and the National Aeronautics and Space Administration held a joint conference at the Langley Research Center, Virginia, to provide industry and government agencies with a progress report concerning manned hypervelocity and re-entry vehicles..

1961 April 11 - .
  • Vostok 1 countdown - . Nation: USSR. Related Persons: Gagarin; Titov; Korolev; Yazdovskiy; Feoktistov. Program: Vostok. Flight: Vostok 1. Spacecraft: Vostok. The booster is rolled out to the pad at 05:00. At 10:00 the cosmonauts meet with Feoktistov for a last review of the flight plan. Launch is set of 09:07 the next day, followed by shutdown and jettison of the lateral boosters of the first stage at 09:09, and orbital insertion at 09:18. The spacecraft will orient itself toward the sun for retrofire at 09:50. At 10:15 the first command sequence will be uploaded to the spacecraft, followed by the second at 10:18 and the third at 10:25. Retrofire of the TDU engine will commence at 10:25:47. The service module will separate from the capsule at 10:36 as the capsule begins re-entry. The capsule's parachute will deploy at 10:43:43 and at 10:44:12 the cosmonaut's ejection seat will fire. While the cosmonauts go through this, the booster has been brought upright on the pad, the service towers raised, and all umbilical connections made. Korolev, Yazdovskiy, and the others make a final inspection at the pad prior to the commencement of the countdown. At 13:00 Gagarin meets a group of soldiers, NCO's, and officers. After this Kamanin and the cosmonauts go to the cottage formerly occupied by Marshal Nedelin, where they will spend the last night before launch. They eat 'space food' out of 160 g toothpaste-type tubes for lunch - two servings of meat puree and one of chocolate sauce. Gagarin's blood pressure is measured as 115/60, pulse 64, body temperature 36.8 deg C. He then subjects to placement of the biosensors he will wear during the flight, and baseline measurements are taken for an hour and twenty minutes. He is very calm through all this. At 21:30 Korolev comes to the cottage, says good night to the cosmonauts, then goes back out to check on launch preparations. Gagarin and Titov go to bed after this. Kamanin stays up a while in the next room, listening to them talk to one another in the dark.

1962 April 11 - .
  • DX (highest) priority for the Apollo program - . Nation: USA. Related Persons: Kennedy. Program: Apollo. Spacecraft: Apollo CSM. Summary: President John F, Kennedy designated the Apollo program including essential spacecraft, launch vehicles, and facilities as being in the highest national priority category (DX) for research and development and for achieving operational capability..

1963 April 11 - .
  • Manned Orbital Research Laboratory (MORL). - . Nation: USA. Related Persons: Kraft. Spacecraft: MORL. Christopher C. Kraft, Jr., John D. Hodge, and William L. Davidson of MSC's light Operations Division met at Langley with a large contingent of that Center's research staff to discuss LaRC's proposed Manned Orbital Research Laboratory (MORL). Langley spokesmen briefed their Houston visitors on the philosophy and proposed program phases leading to an operational MORL. Kraft and his colleagues then emphasized the need for careful study of operational problems involved with the MORL, as well as those associated with the smaller crew ferry and logistics supply vehicles. Specifically, they cited crew selection and training requirements, the need for a continuous recovery capability, communications requirements, and handling procedures for scientific data.

1963 April 11 - . 04:30 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC31B. LV Family: Minuteman. Launch Vehicle: Minuteman 1B. LV Configuration: Minuteman 1B 425A.
  • Research and development launch - . Nation: USA. Agency: USAF. Apogee: 1,300 km (800 mi).

1963 April 11 - . 18:03 GMT - . Launch Site: Hidden Hills DZ. Launch Pad: 36.1 N x 116.0 W. Launch Platform: NB-52 008. LV Family: X-15. Launch Vehicle: X-15. LV Configuration: X-15 1-33-54.
  • X-15A KC-1/APU Test/Imaging mission - . Nation: USA. Agency: NASA; USAF. Apogee: 22 km (13 mi). Summary: Maximum Speed - 4608 kph. Maximum Altitude - 22680 m. First flight in scientific and advanced research series - carried aerial mapping camera..

1963 April 11 - . 20:30 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg LF06. LV Family: Minuteman. Launch Vehicle: Minuteman 1A. LV Configuration: Minuteman 1A 534.
  • Research and development launch - . Nation: USA. Agency: USAF AFSC. Apogee: 1,300 km (800 mi).

1964 April 11 - . Launch Site: Hammaguira. Launch Complex: Hammaguira Bacchus. LV Family: Belier. Launch Vehicle: Dragon 1. LV Configuration: Dragon D-09.
  • FU-104B Probe / Na Aeronomy mission - . Nation: France. Agency: CNES. Apogee: 400 km (240 mi).

1964 April 11 - . Launch Site: Hammaguira. Launch Complex: Hammaguira Bacchus. LV Family: Belier. Launch Vehicle: Centaure. LV Configuration: Centaure C58.
  • Sodium / TMA release Aeronomy mission - . Nation: France. Agency: CNES. Apogee: 151 km (93 mi).

1964 April 11 - . 07:05 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC90/19. LV Family: UR-200. Launch Vehicle: UR-200. FAILURE: Failure.
  • State trials missile test - . Nation: USSR. Agency: RVSN. Apogee: 70 km (43 mi).

1964 April 11 - . 09:19 GMT - . Launch Site: Woomera. Launch Complex: Woomera LA2. Launch Pad: LA2 SL. LV Family: Skylark. Launch Vehicle: Skylark 7C. LV Configuration: Skylark-7C SL136.
  • Ozone distribution Aeronomy mission - . Nation: Australia. Agency: WRE; RAE. Apogee: 200 km (120 mi).

1965 April 11 - . Launch Site: Pacific Ocean. Launch Pad: 48.6 S x 77.7 W. Launch Platform: CVE-25. LV Family: Arcas. Launch Vehicle: Arcas.
  • Aeronomy mission - . Nation: USA. Agency: NASA. Apogee: 60 km (37 mi).

1966 April 11 - .
  • Popovich incident - . Nation: USSR. Related Persons: Gagarin; Gorbatko; Nikolayev; Popovich. Gagarin, Gorbatko, Nikolayev, Popovich, and their wives went out with delegates to the 23 Party Congress from Kiev. Afterwards an argument broke out between Popovich and his wife when she caught him in an embrace with Gorbatko's wife. Popovich struck his wife in the presence of the others, and her brother punched Popovich in response, giving him a black eye.

1967 April 11 - . 17:15 GMT - . Launch Site: Wallops Island. LV Family: Cajun. Launch Vehicle: Nike Cajun. LV Configuration: Nike Cajun NASA 10.223GM.
  • Grenade Aeronomy mission - . Nation: USA. Agency: NASA. Apogee: 126 km (78 mi).

1967 April 11 - . 20:21 GMT - . Launch Site: Kiruna. LV Family: Apache. Launch Vehicle: Nike Apache. LV Configuration: Nike Apache NASA 14.332IE.
  • DLR K-NA-5 Auroral mission - . Nation: USA. Agency: NASA. Apogee: 236 km (146 mi).

1969 April 11 - . 02:30 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. Launch Pad: LC1 or LC31. LV Family: R-7. Launch Vehicle: Molniya 8K78M.
  • Molniya 1-11 - . Payload: Molniya-1. Mass: 1,600 kg (3,500 lb). Nation: USSR. Agency: MOM. Program: Molniya. Class: Communications. Type: Military communications satellite. Spacecraft: Molniya-1. Decay Date: 1974-04-17 . USAF Sat Cat: 3885 . COSPAR: 1969-035A. Apogee: 39,595 km (24,603 mi). Perigee: 483 km (300 mi). Inclination: 64.9000 deg. Period: 712.10 min. Summary: Operation of a system of long range telephone-telegraph radiocommunication, and transmission of USSR Central Television programmes to the stations of the Orbita network..

1969 April 11 - . 08:55 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg LF02. LV Family: Minuteman. Launch Vehicle: Minuteman 3. LV Configuration: Minuteman 3 FTM-301.
  • Research and development launch - . Nation: USA. Agency: USAF AFSC. Apogee: 1,300 km (800 mi).

1970 April 11 - . Launch Site: ETR Launch Area. Launch Platform: SSBN 641. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1970 April 11 - . Launch Site: ETR Launch Area. Launch Platform: SSBN 641. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1970 April 11 - . Launch Site: ETR Launch Area. Launch Platform: SSBN 641. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1970 April 11 - . Launch Site: ETR Launch Area. Launch Platform: SSBN 641. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1970 April 11 - . Launch Site: ETR Launch Area. Launch Platform: SSBN 641. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1970 April 11 - . Launch Site: ETR Launch Area. Launch Platform: SSBN 641. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1970 April 11 - . Launch Site: ETR Launch Area. Launch Platform: SSBN 641. LV Family: Polaris. Launch Vehicle: Polaris A3.
  • Operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1970 April 11 - . Launch Site: Baikonur. Launch Complex: Baikonur LC142/34. LV Family: Tsiklon. Launch Vehicle: R-36 8K67P.
  • State trials missile test - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1970 April 11 - . 03:45 GMT - . Launch Site: Fort Churchill. LV Family: Tomahawk Sandia. Launch Vehicle: Nike Tomahawk. LV Configuration: Nike Tomahawk NASA 18.91UE.
  • Plasma / aurora mission - . Nation: USA. Agency: NASA. Apogee: 270 km (160 mi).

1970 April 11 - . 17:00 GMT - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC132/1. Launch Pad: LC132/pad?. LV Family: Kosmos 3. Launch Vehicle: Kosmos 11K65M.
  • Cosmos 332 - . Mass: 775 kg (1,708 lb). Nation: USSR. Agency: MO. Class: Navigation. Type: Navigation satellite. Spacecraft: Tsiklon. USAF Sat Cat: 4369 . COSPAR: 1970-028A. Apogee: 736 km (457 mi). Perigee: 727 km (451 mi). Inclination: 74.0000 deg. Period: 99.40 min. Summary: Military navigation satellite..

1970 April 11 - . 19:13 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC39A. LV Family: Saturn V. Launch Vehicle: Saturn V. LV Configuration: Saturn V SA-508.
  • Apollo 13 - . Call Sign: Odyssey. Crew: Haise; Lovell; Swigert. Backup Crew: Duke; Mattingly; Young. Support Crew: Brand; Lousma; Kerwin. Payload: Apollo CSM 109 / Apollo LM 7 / ALSEP / S-IVB-508. Mass: 28,790 kg (63,470 lb). Nation: USA. Related Persons: Haise; Lovell; Swigert; Duke; Mattingly; Young; Brand; Lousma; Kerwin. Agency: NASA Houston. Program: Apollo. Class: Moon. Type: Manned lunar spacecraft. Flight: Apollo 13. Spacecraft: Apollo CSM; CSM Fuel Cell. Duration: 5.95 days. Decay Date: 1970-04-17 . USAF Sat Cat: 4371 . COSPAR: 1970-029A. Apogee: 186 km (115 mi). Perigee: 184 km (114 mi). Inclination: 32.5000 deg. Period: 88.31 min. Apollo 13 (AS-508) was launched from Pad A, Launch Complex 39, KSC, at 2:13 p.m. EST April 11, with astronauts James A. Lovell, Jr., John L. Swigert, Jr., and Fred W. Haise, Jr., aboard. The spacecraft and S-IVB stage entered a parking orbit with a 185.5-kilometer apogee and a 181.5-kilometer perigee. At 3:48 p.m., onboard TV was begun for five and one-half minutes. At 4:54 p.m., an S-IVB burn placed the spacecraft on a translunar trajectory, after which the CSM separated from the S-IVB and LM Aquarius. (The crew had named lunar module 7 Aquarius and CSM 109 Odyssey.) The CSM then hard-docked with the LM. The S-IVB auxiliary propulsion system made an evasive maneuver after CSM/LM ejection from the S-IVB at 6:14 p.m. The docking and ejection maneuvers were televised during a 72-minute period in which interior and exterior views of the spacecraft were also shown.

    At 8:13 p.m. EST a 217-second S-IVB auxiliary propulsion system burn aimed the S-IVB for a lunar target point so accurately that another burn was not required. The S-IVB/IU impacted the lunar surface at 8:10 p.m. EST on April 14 at a speed of 259 meters per second. Impact was 137.1 kilometers from the Apollo 12 seismometer. The seismic signal generated by the impact lasted 3 hours 20 minutes and was so strong that a ground command was necessary to reduce seismometer gain and keep the recording on the scale. The suprathermal ion detector experiment, also deployed by the Apollo 12 crew, recorded a jump in the number of ions from zero at the time of impact up to 2,500 shortly thereafter and then back to a zero count. Scientists theorized that ionization had been produced by 6,300 K to 10,300 K (6,000 degrees C to 10,000 degrees C) temperature generated by the impact or that particles had reached an altitude of 60 kilometers from the lunar surface and had been ionized by sunlight.

    Meanwhile back in the CSM/LM, the crew had been performing the routine housekeeping duties associated with the period of the translunar coast. At 30:40 ground elapsed time a midcourse correction maneuver took the spacecraft off a free-return trajectory in order to control the arrival time at the moon. Ensuring proper lighting conditions at the landing site. The maneuver placed the spacecraft on the desired trajectory, on which the closest approach to the moon would be 114.9 kilometers.

    At 10:08 p.m. EST April 13, the crew reported an undervoltage alarm on the CSM main bus B, rapid loss of pressure in SM oxygen tank No. 2, and dropping current in fuel cells 1 and 3 to a zero reading. The loss of oxygen and primary power in the service module required an immediate abort of the mission. The astronauts powered up the LM, powered down the CSM, and used the LM systems for power and life support. The first maneuver following the abort decision was made with the descent propulsion system to place the spacecraft back in a free-return trajectory around the moon. After the spacecraft swung around the moon, another maneuver reduced the coast time back to earth and moved the landing point from the Indian Ocean to the South Pacific.

  • Apollo 13 LM - . Call Sign: Aquarius. Payload: Apollo LM 7. Mass: 15,192 kg (33,492 lb). Nation: USA. Agency: NASA Houston. Program: Apollo. Class: Moon. Type: Manned lunar spacecraft. Flight: Apollo 13. Spacecraft: Apollo LM. Duration: 5.95 days. Decay Date: 1970-04-17 . USAF Sat Cat: 4371 . COSPAR: 1970-029x. Apogee: 186 km (115 mi). Perigee: 184 km (114 mi). Inclination: 32.5000 deg. Period: 88.31 min.

1971 April 11 - .
1972 April 11 - . 00:38 GMT - . Launch Site: Eglin. LV Family: Nike. Launch Vehicle: Nike Iroquois. LV Configuration: Nike Iroquois CRL A07.106-4.
  • Release Aeronomy mission - . Nation: USA. Agency: AFCRL. Apogee: 156 km (96 mi).

1972 April 11 - . 11:04 GMT - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC133/1. LV Family: Kosmos 2. Launch Vehicle: Kosmos 11K63.
  • Cosmos 485 - . Payload: DS-P1-Yu s/n 58. Mass: 325 kg (716 lb). Nation: USSR. Agency: MO. Program: DS. Class: Military. Type: Military target satellite. Spacecraft: DS-P1-Yu. Completed Operations Date: 1972-08-31 . Decay Date: 1972-08-30 . USAF Sat Cat: 5938 . COSPAR: 1972-028A. Apogee: 477 km (296 mi). Perigee: 269 km (167 mi). Inclination: 70.0000 deg. Period: 92.00 min. Summary: Development of systems for air defence and the control of outer space..

1973 April 11 - . 17:50 GMT - . Launch Site: Thumba. LV Family: Belier. Launch Vehicle: Centaure 2A. LV Configuration: Centaure 2A ISRO 5.20.
  • ISRO 5.20 Fields mission - . Nation: India. Agency: ISRO. Apogee: 151 km (93 mi).

1974 April 11 - . 08:00 GMT - . Launch Site: Poker Flat. LV Family: Javelin. Launch Vehicle: Nike Javelin. LV Configuration: Nike Javelin NJ-74-1.
  • ICECAP 74B Auroral mission - . Nation: USA. Agency: AFCRL; DNA. Apogee: 130 km (80 mi).

1974 April 11 - . 12:23 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Voskhod 11A57.
  • Cosmos 640 - . Mass: 6,000 kg (13,200 lb). Nation: USSR. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: Zenit-2M. Duration: 12.00 days. Decay Date: 1974-04-23 . USAF Sat Cat: 7245 . COSPAR: 1974-021A. Apogee: 225 km (139 mi). Perigee: 201 km (124 mi). Inclination: 81.3000 deg. Period: 88.80 min. Summary: Area survey photo reconnaissance satellite; returned film capsule; separated capsule (?)..

1975 April 11 - . 07:57 GMT - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC132/1. LV Family: Kosmos 3. Launch Vehicle: Kosmos 11K65M. LV Configuration: Kosmos 11K65M 65033-203.
  • Cosmos 726 - . Mass: 810 kg (1,780 lb). Nation: USSR. Agency: MO. Class: Navigation. Type: Navigation satellite. Spacecraft: Parus. USAF Sat Cat: 7736 . COSPAR: 1975-028A. Apogee: 991 km (615 mi). Perigee: 952 km (591 mi). Inclination: 83.0000 deg. Period: 104.50 min. Summary: Military navigation satellite..

1976 April 11 - . 16:00 GMT - . Launch Site: Sea-launched. Launch Pad: UNKO. Launch Platform: SHOK. LV Family: M-100. Launch Vehicle: M-100.
  • - . Nation: USSR. Apogee: 83 km (51 mi).

1977 April 11 - . 01:38 GMT - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC43/3. LV Family: R-7. Launch Vehicle: Molniya 8K78M.
  • Cosmos 903 - . Payload: Oko #6. Mass: 1,250 kg (2,750 lb). Nation: USSR. Agency: MOM. Class: Military. Type: Early warning satellite. Spacecraft: Oko. USAF Sat Cat: 9911 . COSPAR: 1977-027A. Apogee: 35,796 km (22,242 mi). Perigee: 4,559 km (2,832 mi). Inclination: 67.4000 deg. Period: 717.80 min. Summary: Covered Oko constellation plane 7 - 163 degree longitude of ascending node..

1977 April 11 - . 05:00 GMT - . Launch Site: Syowa Base. LV Family: S. Launch Vehicle: S-210. LV Configuration: S-210JA-26.
  • NO / O3 / Ne Aeronomy mission - . Nation: Japan. Agency: NIPR. Apogee: 105 km (65 mi).

1978 April 11 - . 04:00 GMT - . Launch Site: White Sands. LV Family: Black Brant. Launch Vehicle: Black Brant 8C. LV Configuration: Black Brant 8C NASA 27.26UH.
  • X-ray astronomy mission - . Nation: USA. Agency: NASA. Apogee: 303 km (188 mi).

1978 April 11 - . 21:59 GMT - . Launch Site: ETR Launch Area. Launch Platform: SSBN 619. Launch Vehicle: Poseidon.
  • OT-32 Operational test - . Nation: USA. Agency: USN. Apogee: 500 km (310 mi).

1978 April 11 - . 21:59 GMT - . Launch Site: ETR Launch Area. Launch Platform: SSBN 619. Launch Vehicle: Poseidon.
  • OT-32 Operational test - . Nation: USA. Agency: USN. Apogee: 500 km (310 mi).

1978 April 11 - . 22:00 GMT - . Launch Site: ETR Launch Area. Launch Platform: SSBN 619. Launch Vehicle: Poseidon.
  • OT-32 Operational test - . Nation: USA. Agency: USN. Apogee: 500 km (310 mi).

1978 April 11 - . 22:00 GMT - . Launch Site: ETR Launch Area. Launch Platform: SSBN 619. Launch Vehicle: Poseidon.
  • OT-32 Operational test - . Nation: USA. Agency: USN. Apogee: 500 km (310 mi).

1979 April 11 - . Launch Site: WTR Launch Area. Launch Platform: SSBN 599. LV Family: Polaris. Launch Vehicle: Polaris A3. LV Configuration: Polaris A3TA.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1979 April 11 - . Launch Site: WTR Launch Area. Launch Platform: SSBN 599. LV Family: Polaris. Launch Vehicle: Polaris A3. LV Configuration: Polaris A3TA.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1979 April 11 - . Launch Site: WTR Launch Area. Launch Platform: SSBN 599. LV Family: Polaris. Launch Vehicle: Polaris A3. LV Configuration: Polaris A3TA.
  • Follow-on operational missile test - . Nation: USA. Agency: USN. Apogee: 1,000 km (600 mi).

1979 April 11 - . 10:45 GMT - . Launch Site: Kheysa. LV Family: MR-12. Launch Vehicle: MR-12.
  • Aeronomy/Ionosphere/Plasma mission - . Nation: USSR. Apogee: 180 km (110 mi).

1979 April 11 - . 21:51 GMT - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC132/1. LV Family: Kosmos 3. Launch Vehicle: Kosmos 11K65M. LV Configuration: Kosmos 11K65M 53782-423.
  • Cosmos 1092 - . Mass: 810 kg (1,780 lb). Nation: USSR. Agency: MO. Class: Navigation. Type: Navigation satellite. Spacecraft: Tsikada. USAF Sat Cat: 11326 . COSPAR: 1979-030A. Apogee: 1,005 km (624 mi). Perigee: 959 km (595 mi). Inclination: 83.0000 deg. Period: 104.70 min. Summary: Civilian naval navigation satellite..

1980 April 11 - . 00:15 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC29A. Launch Pad: LC29/pad?. LV Family: Polaris. Launch Vehicle: Polaris A3. LV Configuration: Polaris A3TK PT-1.
  • Chevaline warhead test launch - . Nation: UK. Agency: RN. Apogee: 1,000 km (600 mi).

1982 April 11 - . 07:30 GMT - . Launch Site: Kheysa. LV Family: M-100. Launch Vehicle: M-100.
  • - . Nation: USSR. Apogee: 63 km (39 mi).

1983 April 11 - . 21:39 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17B. LV Family: Delta. Launch Vehicle: Delta 3924. LV Configuration: Delta 3924 653/D167.
  • RCA Satcom 6 - . Payload: Satcom 1R. Mass: 2,385 kg (5,258 lb). Nation: USA. Agency: RCA Amer. Manufacturer: Lockheed. Program: Satcom. Class: Communications. Type: Civilian communications satellite. Spacecraft: AS 3000. Completed Operations Date: 1992-12-27 . USAF Sat Cat: 13984 . COSPAR: 1983-030A. Apogee: 35,953 km (22,340 mi). Perigee: 35,851 km (22,276 mi). Inclination: 7.0000 deg. Period: 1,442.00 min. Summary: Positioned in geosynchronous orbit at 139 deg W in 1983-1991; 131 deg W in 1991-1992 As of 5 September 2001 located at 148.59 deg W drifting at 1.499 deg W per day. As of 2007 Mar 10 located at 90.26E drifting at 1.535W degrees per day..

1984 April 11 - . 08:58 GMT - .
  • EVA STS-41-C-2 - . Crew: Nelson; van Hoften. EVA Type: Extra-Vehicular Activity. EVA Duration: 0.30 days. Nation: USA. Related Persons: Nelson; van Hoften. Program: STS. Class: Manned. Type: Manned spaceplane. Flight: STS-41-C. Spacecraft: Challenger. Summary: Successfully captured and repaired Solar Max satellite..

1984 April 11 - .
1986 April 11 - . 07:26 GMT - . Launch Site: Sea-launched. Launch Pad: UNKO. Launch Platform: KRENKEL'. Launch Vehicle: MMR-06.
  • Aeronomy mission - . Nation: USSR. Agency: GMS. Apogee: 59 km (36 mi).

1987 April 11 - . 19:41 GMT - .
  • EVA Mir EO-2-1 - . Crew: Romanenko; Laveykin. EVA Type: Extra-Vehicular Activity. EVA Duration: 0.15 days. Nation: USSR. Related Persons: Romanenko; Laveykin. Program: Mir. Class: Manned. Type: Manned space station. Flight: Mir EO-2; Mir LD-1. Spacecraft: Mir. Summary: Removed bag from docking unit that interfered with Kvant docking..

1988 April 11 - . 11:15 GMT - . Launch Site: Plesetsk. LV Family: R-7. Launch Vehicle: Soyuz 11A511U.
  • Cosmos 1938 - . Mass: 6,300 kg (13,800 lb). Nation: USSR. Agency: MOM. Class: Earth. Type: Earth resources satellite. Spacecraft: Zenit-8. Duration: 14.00 days. Decay Date: 1988-04-25 . USAF Sat Cat: 19041 . COSPAR: 1988-030A. Apogee: 287 km (178 mi). Perigee: 194 km (120 mi). Inclination: 72.9000 deg. Period: 89.30 min. Summary: Military cartographic satellite; returned film capsule..

1989 April 11 - . 03:36 GMT - . Launch Site: Fort Churchill. LV Family: Black Brant. Launch Vehicle: Black Brant 10B. LV Configuration: Black Brant XB NASA 35.021GE.
  • Barium release + Plasma mission - . Nation: USA. Agency: NASA. Apogee: 900 km (550 mi).

1990 April 11 - . 15:00 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC3W. LV Family: Atlas. Launch Vehicle: Atlas E Altair. LV Configuration: Atlas E / Altair 28E.
  • USA 56 - . Payload: POGS & SSR. Nation: USA. Agency: USAF. Class: Technology. Type: Navigation technology satellite. Spacecraft: Stacksat P87-2. USAF Sat Cat: 20560 . COSPAR: 1990-031A. Apogee: 745 km (462 mi). Perigee: 627 km (389 mi). Inclination: 89.8000 deg. Period: 98.48 min. Polar Orbiting Geomagnetic Survey satellite designed to measure the Earth's magnetic field vector as a function of position. Data from the experiment was used to improve Earth navigation systems, and was stored in an experimental solid state recorder. Six low cost ground stations were designed, built and located around the world to operate the spacecraft flown on this mission.
  • USA 57 - . Payload: TEX. Nation: USA. Agency: USAF. Class: Technology. Type: Navigation technology satellite. Spacecraft: Stacksat P87-2. USAF Sat Cat: 20561 . COSPAR: 1990-031B. Apogee: 742 km (461 mi). Perigee: 627 km (389 mi). Inclination: 89.8000 deg. Period: 98.45 min. Summary: TEX (Transceiver EXperiment) carried a variable power transmitter used to study ionospheric effects on RF transmissions. Data from the experiment was used to determine minimum spacecraft transmitter power levels for transmission to ground receivers..
  • USA 58 - . Payload: SCE. Nation: USA. Agency: USAF. Class: Technology. Type: Navigation technology satellite. Spacecraft: Stacksat P87-2. USAF Sat Cat: 20562 . COSPAR: 1990-031C. Apogee: 741 km (460 mi). Perigee: 627 km (389 mi). Inclination: 89.8000 deg. Period: 98.44 min. Summary: SCE (Selective Communications Experiment) carried a variable frequency transmitter to study ionospheric effects at various RF frequencies, and was also designed to demonstrate message store and forward techniques..

1990 April 11 - . 17:00 GMT - . Launch Site: Plesetsk. Launch Complex: Plesetsk LC43/3. LV Family: R-7. Launch Vehicle: Soyuz 11A511U2.
  • Foton 6 - . Payload: Foton s/n 6L. Mass: 6,200 kg (13,600 lb). Nation: USSR. Agency: MOM. Class: Materials. Type: Materials science satellite. Spacecraft: Foton. Duration: 15.17 days. Decay Date: 1990-04-27 . USAF Sat Cat: 20566 . COSPAR: 1990-032A. Apogee: 374 km (232 mi). Perigee: 216 km (134 mi). Inclination: 62.8000 deg. Period: 90.40 min. 250 orbits. In addition to Russian materials science experiments, Foton 6 carried out the French Gezon experiment using the Russian Zona-4M electric furnace (Foton spacecraft have also flown the Zona 1, Zona 4, Splav 2, and Konstanta 2 electric furnaces as well as the Kashtan electrophoresis unit). Foton 6, which also carried the European Biopan life sciences experiments, was successfully recovered on the 15th day.

1991 April 11 - .
  • Galileo antenna relese fails - . Nation: USA. Spacecraft: Galileo. Summary: Subsequent attempts to release it failed, reducing data return rate by an order of magnitude..

1991 April 11 - .
1994 April 11 - . 07:49 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC81/23. LV Family: Proton. Launch Vehicle: Proton-K/DM-2. LV Configuration: Proton-K/DM-2 377-01.
  • Cosmos 2275 - . Payload: Glonass s/n 58L. Mass: 1,400 kg (3,000 lb). Nation: Russia. Agency: MOM. Class: Navigation. Type: Navigation satellite. Spacecraft: Glonass . USAF Sat Cat: 23043 . COSPAR: 1994-021A. Apogee: 19,143 km (11,894 mi). Perigee: 19,117 km (11,878 mi). Inclination: 63.7000 deg. Period: 675.70 min. Summary: Glonass navigational satellite. .
  • Cosmos 2276 - . Payload: Glonass s/n 60L. Mass: 1,400 kg (3,000 lb). Nation: Russia. Agency: MOM. Class: Navigation. Type: Navigation satellite. Spacecraft: Glonass. USAF Sat Cat: 23044 . COSPAR: 1994-021B. Apogee: 19,216 km (11,940 mi). Perigee: 19,044 km (11,833 mi). Inclination: 64.3000 deg. Period: 675.70 min. Summary: Glonass navigational satellite..
  • Cosmos 2277 - . Payload: Glonass s/n 61L. Mass: 1,400 kg (3,000 lb). Nation: Russia. Agency: MOM. Class: Navigation. Type: Navigation satellite. Spacecraft: Glonass. USAF Sat Cat: 23045 . COSPAR: 1994-021C. Apogee: 19,157 km (11,903 mi). Perigee: 19,103 km (11,870 mi). Inclination: 64.3000 deg. Period: 675.70 min. Summary: Glonass navigational satellite..

1995 April 11 - .
  • Death of T Keith Glennan at Bowie, Prince George. - . Nation: USA. Related Persons: Glennan. Summary: American engineer, NASA administrator 1958-1961. Under his tenure NASA was created from NACA, JPL, and ABMA. He acquired von Braun's rocket team and Saturn booster from the Army, and the Air Force manned space project - renamed Mercury..

1995 April 11 - . Launch Site: Andoya. LV Family: Viper. Launch Vehicle: Viper. LV Configuration: Viper Aerosole.
  • Aeronomy mission - . Nation: Germany. Agency: DLR. Apogee: 75 km (46 mi).

1997 April 11 - . 14:00 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC47. Launch Vehicle: Rocketsonde.
  • Arcasonde - . Nation: USA. Agency: MRN. Apogee: 60 km (37 mi).

1998 April 11 - . 09:55 GMT - .
  • EVA Mir EO-25-4 - . Crew: Musabayev; Budarin. EVA Type: Extra-Vehicular Activity. EVA Duration: 0.27 days. Nation: Russia. Related Persons: Musabayev; Budarin. Program: Mir. Class: Manned. Type: Manned space station. Flight: Mir NASA-6; Mir EO-25. Spacecraft: Mir. Summary: The cosmonauts began a series of three EVA's to install the new VDU station orientation engine (delivered by Progress M-38) into the Sofora boom. On this first spacewalk they disconnected the old engine (in use for six years) and pushed it into space..

1999 April 11 - . 04:17 GMT - . Launch Site: Balasore. Launch Complex: Balasore IC4. LV Family: Agni. Launch Vehicle: Agni 2.
  • Agni RV Mk 2 Research and development launch - . Nation: India. Agency: IDRDL. Apogee: 1,000 km (600 mi).

2000 April 11 - . Launch Site: Balasore. LV Family: Prithvi. Launch Vehicle: Dhanush. FAILURE: Failure.
  • Test launch - . Nation: India. Agency: IDRDL. Apogee: 1.00 km (0.60 mi).

2001 April 11 - .
  • ISS Status Report: ISS 01-10 - . Nation: USA. Related Persons: Helms; Voss. Program: ISS. Flight: ISS EO-2. The International Space Station's Expedition Two Crew spent this week loading the Progress supply craft with trash and unneeded items in preparation for its undocking next week to clear the aft port on the Zvezda module for the relocation of the Soyuz capsule. This air traffic control activity clears the way for the arrival next week of Space Shuttle Endeavour and the STS-100 crew delivering the Canadian built station robot arm and another high tech moving van full of supplies. Additional Details: ISS Status Report: ISS 01-10.

2002 April 11 - . 14:36 GMT - .
  • EVA STS-110-1 - . Crew: Smith, Steven; Walheim. EVA Type: Extra-Vehicular Activity. EVA Duration: 0.33 days. Nation: USA. Related Persons: Smith, Steven; Walheim. Program: ISS. Flight: STS-110. At 1030 UTC the S0 truss was unberthed from Atlantis, and berthed to the Destiny module's Lab Cradle Assembly at 1346 UTC. At 1433 the Quest airlock was depressurized and the astronauts emerged to bolt in place the two forward MTS struts and deploy a trailing umbilical for the mobile transporter. The airlock was repressurized at 2224 UTC.

2003 April 11 - .
2005 April 11 - . 13:35 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC8. LV Family: Minotaur. Launch Vehicle: Minotaur 1. LV Configuration: Minotaur 1 3.
  • USA 165 - . Payload: XSS-11. Mass: 145 kg (319 lb). Nation: USA. Agency: USAF RL. Manufacturer: Lockheed. Class: Technology. Type: Rendezvous technology satellite. Spacecraft: XSS. USAF Sat Cat: 28636 . COSPAR: 2005-011A. Apogee: 872 km (541 mi). Perigee: 840 km (520 mi). Inclination: 98.8000 deg. Period: 102.10 min. Delayed from November 9, 2004; January 19, March 18, 2005. Military Autonomous Rendezvous Technology. It tested navigation technologies for rendezvous that directly measured relative position to the target satellite. It was have to rendezvoused with several defunct American satellites. However it was only known to have conducted operations with its own Minotaur upper stage

2006 April 11 - .
2006 April 11 - .
  • Venus Express arrives at Venus - . Nation: Europe. The 53-minute orbit insertion burn begain at 07:10 GMT and left VEx the spacecraft in a highly elliptical polar orbit around Venus with an apoapsis of 350,000 km. A series of further engine burns would place the satellite in a 257 x 70,463 km orbit by 23 April..

2007 April 11 - . 03:27 GMT - . Launch Site: Taiyuan. LV Family: CZ. Launch Vehicle: CZ-2C. LV Configuration: Chang Zheng 2C CZ2C-29 (96).
  • Haiyang 1B - . Mass: 360 kg (790 lb). Nation: China. Agency: CASC. Manufacturer: DFH. Class: Earth. Type: Sea satellite. Spacecraft: HY-1. USAF Sat Cat: 31113 . COSPAR: 2007-010A. Apogee: 815 km (506 mi). Perigee: 782 km (485 mi). Inclination: 98.6000 deg. Period: 100.80 min. Summary: Oceanographic satellite equipped with a 10-band ocean color scanner, a 4-band CCD imager with 250-meter resolution, and an infrared water profile radiometer..

2008 April 11 - .
  • ISS On-Orbit Status 04/11/08 - . Nation: USA. Related Persons: Kononenko, O D; Malenchenko; Reisman; Volkov, Sergey; Whitson; Yi So-yeon. Program: ISS. Flight: ISS EO-16; ISS EO-16-3; ISS EO-17. Day 2 of joint E16/E17 operations.

    The crew's work/sleep cycle shifted again, from yesterday's wakeup at 5:00am to 6:20am EDT (sleeptime tonight at 5:50pm, from 9:30pm). Work period will shift again tomorrow (to 2:20am -5:50pm).

    Aboard ISS, the E16/E17 crew rotation/handover period went underway with full activity schedules for all six residents involved.

    CDR-17 Sergei Volkov and FE-1-16 Yuri Malenchenko conducted a communications test between the two docked Soyuz vehicles (15S/16S), checking out comm systems both via hard-line mode (MBS) and S-band, and VHF mode on two channels, including the ground (TsUP-Moscow). (The test was also intended to provide multi-segment comm procedure training. Systems were reconfigured to nominal mode afterwards.) Additional Details: ISS On-Orbit Status 04/11/08.


2010 April 11 - .
  • EVA STS-131-2 - . Crew: Mastracchio; Anderson, Clayton. EVA Type: Extravehicular activity. EVA Duration: 0.31 days. Nation: USA. Program: ISS. Flight: STS-131; ISS EO-23; ISS EO-22. Summary: The old ammonia tank was removed from the S1 truss and was replaced with the new tank. The electrical connections to the tank were made, but the fluid lines were deferred to the mission's third EVA due to time constraints since the installation was prolon.

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