Encyclopedia Astronautica
August 25


August 25 Chronology


1908 August 25 - .
1915 August 25 - .
  • Birth of Seymour S Kety - . Nation: USA. Summary: American physician, chair of NASA's bioscience advisory committee in 1959..

1920 August 25 - .
  • Birth of Jack L 'John' Bowers - . Nation: USA. Summary: American engineer. Convair corporate officer in charge of Atlas development during the peak of its development phase..

1932 August 25 - .
1949 August 25 - .
  • XS-1 Flight 124 - . Crew: Everest. Payload: XS-1 # 1 flight 72. Nation: USA. Related Persons: Everest. Class: Manned. Type: Manned rocketplane. Spacecraft: XS-1. Summary: AF flight 50. First use of partial pressure suit to save life of pilot during flight at high altitude. X-1 # 1 lost cockpit pressurization about 21000 m. Everest made safe emergency descent..

1952 August 25 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: R-1. Launch Vehicle: R-1 8A11. LV Configuration: R-1 8A11 No 320.
  • Operational test - . Nation: USSR. Agency: Korolev. Apogee: 100 km (60 mi).

1954 August 25 - . Launch Site: White Sands. LV Family: Nike. Launch Vehicle: Nike. LV Configuration: Nike 2521R.
  • Test mission - . Nation: USA. Agency: USA. Apogee: 10 km (6 mi).

1955 August 25 - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: R-1. Launch Vehicle: R-1 8A11. LV Configuration: R-1 8A11 No 0315.
  • Operational test - . Nation: USSR. Agency: Korolev. Apogee: 100 km (60 mi).

1957 August 25 - . 02:23 GMT - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: R-2. Launch Vehicle: R-2A. LV Configuration: R-2A No. 3.
  • Ionosphere / biological mission - . Nation: USSR. Agency: Korolev. Apogee: 206 km (128 mi).

1957 August 25 - . 03:27 GMT - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: R-2. Launch Vehicle: R-2A.
  • Test mission - . Nation: USSR. Agency: AN. Apogee: 208 km (129 mi).

1957 August 25 - . 14:08 GMT - . Launch Site: Fort Churchill. LV Family: Aerobee. Launch Vehicle: Aerobee. LV Configuration: Aerobee SM2.06.
  • Grenades, Temperature, wind Aeronomy mission - . Nation: USA. Agency: USA. Apogee: 130 km (80 mi).

1958 August 25 - . Launch Site: Santa Barbara Channel DZ. Launch Pad: 34.2 N x 120.0 W. Launch Platform: F4D-1 747. LV Family: Project Pilot. Launch Vehicle: Project Pilot. LV Configuration: Project Pilot 4. FAILURE: Vehicle exploded after 0.75sec.. Failed Stage: 1.
  • Pilot 4 - . Payload: Radiation Payload 1. Nation: USA. Agency: USN. Class: Technology. Type: Navigation technology satellite. Spacecraft: Pilot. Decay Date: 1958-08-25 . COSPAR: F580825A. Apogee: 12 km (7 mi).

1958 August 25 - . 18:17 GMT - . Launch Site: Wallops Island. Launch Vehicle: Jason. LV Configuration: Jason Jason 1859.
  • Nuclear test observation mission - . Nation: USA. Agency: USAF. Apogee: 800 km (490 mi).

1959 August 25 - .
  • Testing completed on Mercury drogue parachute effectiveness - . Nation: USA. Program: Mercury. Spacecraft: Mercury; Mercury Parachute. Testing was completed to check the effectiveness of the drogue parachute as a stabilizing device. The drogue parachute was fully qualified for deployment at speeds up to Mach 1.5 and altitudes of up to 70,000 feet. Ordinarily, during the operational phase of Project Mercury the drogue parachute was deployed at 40,000 feet, so the component well met operational requirements.

1960 August 25 - .
1960 August 25 - . 01:04 GMT - . Launch Site: Eglin. LV Family: Asp. Launch Vehicle: Nike Asp. LV Configuration: Nike Asp AA8.244.
  • Firefly Aeronomy mission - . Nation: USA. Agency: USAF. Apogee: 200 km (120 mi).

1960 August 25 - . 14:28 GMT - . Launch Site: Eglin. LV Family: Honest John. Launch Vehicle: HJ Nike. LV Configuration: HJ Nike AA5.431.
  • Firefly ZELDA Aeronomy mission - . Nation: USA. Agency: USAF. Apogee: 102 km (63 mi).

1961 August 25 - .
  • Explorer XIII - . Nation: USA. Summary: , designed in part to measure the effects of micrometeoroids on spaceflight, failed to meet expectations, thereby necessitating further tests in this area..

1961 August 25 - . 18:29 GMT - . Launch Site: Wallops Island. Launch Complex: Wallops Island LA3. LV Family: Scout. Launch Vehicle: Scout X-1. LV Configuration: Scout X-1 ST-6. FAILURE: Partial Failure.. Failed Stage: 4.
  • Explorer 13 - . Payload: S-55A. Mass: 86 kg (189 lb). Nation: USA. Agency: NASA. Program: Explorer. Class: Earth. Type: Micrometeoroid satellite. Spacecraft: S-55. Decay Date: 1961-08-28 . USAF Sat Cat: 180 . COSPAR: 1961-Chi-1. Apogee: 1,164 km (723 mi). Perigee: 125 km (77 mi). Inclination: 37.7000 deg. Period: 97.50 min. Summary: Useless orbit; micrometeoroid research. Partial Failure..

1962 August 25 - . Launch Site: Point Mugu. LV Family: Nike Zeus. Launch Vehicle: Nike Zeus. LV Configuration: Nike Zeus-3. FAILURE: Failure.
  • PM-14 test - . Nation: USA. Agency: USA. Apogee: 100 km (60 mi).

1962 August 25 - . 02:18 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. LV Family: R-7. Launch Vehicle: Molniya 8K78. LV Configuration: Molniya 8K78 T103-12. FAILURE: At T+60 min 50 sec one of the four solid motors of the escape stage's BOZ unit did not fire. The resulting asymmetric torque caused the stage to lose correct attitude and three seconds after ignition of the main engine S1.5400A1 it began to tumble.. Failed Stage: 3.
  • Sputnik 19 - . Payload: 2MV-1 s/n 1. Mass: 890 kg (1,960 lb). Nation: USSR. Related Persons: Kuznetsova; Ponomaryova; Solovyova; Tereshkova; Yerkina. Agency: RVSN. Program: Venera; Vostok. Class: Venus. Type: Venus probe. Spacecraft: Mars 2MV-1. Decay Date: 1962-08-28 . USAF Sat Cat: 371 . COSPAR: 1962-A-Pi-1. Apogee: 252 km (156 mi). Perigee: 173 km (107 mi). Inclination: 64.9000 deg. Period: 88.70 min. Attempt to launch a probe towards Mars. The launch went well, but the fourth stage motor burnt for only 45s of the planned 240s. The stage remained in Earth orbit. However Kamanin notes that it was good that the launch of the basic vehicle was a success - it gave the visiting female cosmonauts confidence in the rocket they will have to ride.

1963 August 25 - . 00:30 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC1W. LV Family: Delta. Launch Vehicle: Thor Agena D SLV-2A/D. LV Configuration: Thor SLV-2A Agena D 377 / Agena D 1162.
  • KH-4A 1001 - . Payload: KH-4A s/n 1001 / Agena D 1162. Mass: 1,500 kg (3,300 lb). Nation: USA. Agency: NRO; CIA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: KH-4A. Decay Date: 1963-09-12 . USAF Sat Cat: 636 . COSPAR: 1963-034A. Apogee: 320 km (190 mi). Perigee: 161 km (100 mi). Inclination: 75.0000 deg. Period: 89.40 min. Summary: KH-4A. First mission of KH-4A. Some film was fogged. Two buckets but 1001-2 was never recovered..

1964 August 25 - . Launch Site: Vandenberg. Launch Complex: Vandenberg LF07. LV Family: Minuteman. Launch Vehicle: Minuteman 1B. LV Configuration: Minuteman 1B 989.
  • Operational missile test - . Nation: USA. Agency: USAF SAC. Apogee: 1,300 km (800 mi).

1964 August 25 - . 13:43 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC5. LV Family: Scout. Launch Vehicle: Scout X-4. LV Configuration: Scout X-4 S134R.
  • Explorer 20 - . Payload: IE A (S-48 Ionosphere Explorer). Mass: 44 kg (97 lb). Nation: USA. Agency: NASA Greenbelt. Program: Explorer. Class: Earth. Type: Ionosphere satellite. Spacecraft: IE. USAF Sat Cat: 870 . COSPAR: 1964-051A. Apogee: 999 km (620 mi). Perigee: 857 km (532 mi). Inclination: 79.9000 deg. Period: 103.60 min. Summary: Ionospheric research. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B)..

1965 August 25 - .
  • President Johnson announced approval for the Department of Defense's $1.5-billion Manned Orbiting Laboratory (MOL). - . Nation: USA. Related Persons: Johnson, Lyndon. Spacecraft: MOL. At a White House news conference, President Lyndon B. Johnson announced approval for the Department of Defense's development of the $1.5-billion Manned Orbiting Laboratory (MOL). Such a program, the President said, would bring 'new knowledge about what man is able to do in space.' Further, MOL 'will enable us to relate that ability to the defense of America.'

1965 August 25 - .
1965 August 25 - . Launch Site: Vandenberg. LV Family: Titan. Launch Vehicle: Titan 3M.
  • MOL to be launched from Canaveral and Vandenberg - . Nation: USA. Related Persons: Johnson, Lyndon. Class: Manned. Type: Manned space station. Spacecraft: MOL. Summary: DoD revealed that newly-authorized Manned Orbiting Laboratory (MOL) program (announced by President Lyndon Johnson the same day) would be launched from both the Air Force Eastern and Western Test Ranges..

1965 August 25 - . 10:19 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. LV Family: R-7. Launch Vehicle: Voskhod 11A57. LV Configuration: Voskhod 11A57 R15001-06.
  • Cosmos 79 - . Mass: 6,300 kg (13,800 lb). Nation: USSR. Agency: MOM. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: Zenit-4. Duration: 8.00 days. Decay Date: 1965-09-02 . USAF Sat Cat: 1523 . COSPAR: 1965-069A. Apogee: 338 km (210 mi). Perigee: 206 km (128 mi). Inclination: 64.9000 deg. Period: 89.90 min. Summary: High resolution photo reconnaissance satellite; returned film capsule.

1965 August 25 - . 15:17 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17B. LV Family: Delta. Launch Vehicle: Thor Delta C. LV Configuration: Thor Delta C 434/D33. FAILURE: Premature third stage ignition.. Failed Stage: 3.
  • OSO C - . Payload: OSO C. Mass: 280 kg (610 lb). Nation: USA. Agency: NASA. Class: Astronomy. Type: Solar astronomy satellite. Spacecraft: OSO. Decay Date: 1965-08-25 . COSPAR: F650825A.

1965 August 25 - . 16:28 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg LF04. LV Family: Minuteman. Launch Vehicle: Minuteman 1A. LV Configuration: Minuteman 1A 509.
  • Follow-on operational missile test - . Nation: USA. Agency: USAF SAC. Apogee: 1,300 km (800 mi).

1965 August 25 - . 17:54 GMT - . Launch Site: Delamar Dry Lake DZ. Launch Pad: 37.3 N x 114.9 W. Launch Platform: NB-52 003. LV Family: X-15. Launch Vehicle: X-15. LV Configuration: X-15 1-57-96.
  • X-15A MIT Scan,Stability test - . Nation: USA. Agency: NASA; USAF. Apogee: 65 km (40 mi). Summary: Maximum Speed - 5799 kph. Maximum Altitude - 65258 m..

1965 August 25 - . 18:31 GMT - . Launch Site: Wallops Island. LV Family: Javelin. Launch Vehicle: Javelin. LV Configuration: Javelin NASA 8.11UA.
  • Helium ionization Aeronomy mission - . Nation: USA. Agency: NASA. Apogee: 902 km (560 mi).

1966 August 25 - . Launch Site: Baikonur. Launch Complex: Baikonur LC41/3. Launch Pad: LC41/3?. LV Family: R-16. Launch Vehicle: R-16U.
  • Military training launch - . Nation: USSR. Agency: RVSN. Apogee: 1,210 km (750 mi).

1966 August 25 - . 00:45 GMT - . Launch Site: Wallops Island. LV Family: Apache. Launch Vehicle: Nike Apache. LV Configuration: Nike Apache NASA 14.272UI.
  • Ionosphere mission - . Nation: USA. Agency: NASA. Apogee: 169 km (105 mi).

1966 August 25 - . 17:15 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC34. LV Family: Saturn I. Launch Vehicle: Uprated Saturn I. LV Configuration: Uprated Saturn I SA-202.
  • Apollo 202 (AS-202) - . Nation: USA. Agency: NASA. Apogee: 1,143 km (710 mi). Spacecraft 011 was essentially a Block I spacecraft with the following exceptions: couches, crew equipment, and the cabin postlanding ventilation were omitted; and three auxiliary batteries, a mission control programmer, four cameras, and flight qualification instrumentation were added.

    Of six primary test objectives assigned to the mission, the objectives for the environmental control, electrical power, and communications subsystems were not completely satisfied. All other spacecraft test objectives were successfully accomplished.


1966 August 25 - . 17:49 GMT - . Launch Site: Delamar Dry Lake DZ. Launch Pad: 37.3 N x 114.9 W. Launch Platform: NB-52 003. LV Family: X-15. Launch Vehicle: X-15. LV Configuration: X-15 1-67-112. FAILURE: Inertial malfunction during re-entry..
  • X-15A HS/MuMet/Gas Technology/Meteor/Aeronomy mission - . Nation: USA. Agency: NASA; USAF. Apogee: 78 km (48 mi). Summary: Maximum Speed - 5701 kph. Maximum Altitude - 78490 m. Collected micrometeorites and extraterrestrial dust..

1967 August 25 - . Launch Site: Green River. Launch Complex: Green River Pad 1. LV Family: Athena RTV. Launch Vehicle: Athena RTV. LV Configuration: Athena D048.
  • USAF D048 re-entry vehicle test flight - . Nation: USA. Agency: USAF. Apogee: 200 km (120 mi).

1967 August 25 - . 20:27 GMT - . Launch Site: Hidden Hills DZ. Launch Pad: 36.1 N x 116.0 W. Launch Platform: NB-52 003. LV Family: X-15. Launch Vehicle: X-15. LV Configuration: X-15 3-62-92.
  • X-15A Guid/HT/BLN test - . Nation: USA. Agency: NASA; USAF. Apogee: 25 km (15 mi). Summary: Maximum Speed - 5012 kph. Maximum Altitude - 25720 m..

1968 August 25 - . 16:40 GMT - . Launch Site: Kiruna. LV Family: Arcas. Launch Vehicle: Boosted Arcas 2. LV Configuration: Boosted Arcas 2 AE008.
  • ESRO A50 / 2 Ionosphere mission - . Nation: Europe. Agency: ESRO. Apogee: 109 km (67 mi).

1969 August 25 - . 19:19 GMT - . Launch Site: Fort Greely. Launch Vehicle: Rocketsonde.
  • Chaff - . Nation: USA. Agency: MRN. Apogee: 57 km (35 mi).

1970 August 25 - . 21:14 GMT - . Launch Site: Barking Sands. Launch Vehicle: Rocketsonde.
  • Met Para - . Nation: USA. Agency: MRN. Apogee: 54 km (33 mi).

1971 August 25 - .
  • M2 Flight 25 - . Crew: Dana. Payload: M2-F3 flight 9. Nation: USA. Related Persons: Dana. Program: NASA Lifting Body. Class: Manned. Type: Manned spaceplane. Spacecraft: M2-F3. Summary: First M2-F3 supersonic flight. Maximum Speed - 1163 kph. Maximum Altitude - 20513 m. Flight Time - 390 sec..

1971 August 25 - . 05:40 GMT - . Launch Site: Kagoshima. LV Family: Kappa. Launch Vehicle: Kappa 9M. LV Configuration: Kappa 9M K-9M-36. FAILURE: Failure.
  • Ionosphere mission - . Nation: Japan. Agency: ISAS. Apogee: 0 km ( mi).

1972 August 25 - .
  • Twenty-four Skylab suits were delivered. - . Nation: USA. Program: Skylab. Spacecraft: A7L. Summary: Twenty-four Skylab suits were delivered by the space suit manufacturer, International Latex Corporation; five were ready for delivery, nine were in the manufacturing process, and material for the remaining three had been procured. .

1973 August 25 - . 00:45 GMT - . Launch Site: Kwajalein. Launch Vehicle: Rocketsonde.
  • Starute, Datasonde - . Nation: USA. Agency: MRN. Apogee: 64 km (39 mi).

1975 August 25 - .
  • Shuttle Enterprise final assembly. - . Nation: USA. Program: STS. Class: Manned. Type: Manned spaceplane. Spacecraft: Enterprise. Summary: Start final assembly and closeout system installation, Enterprise (OV-101).

1976 August 25 - . 16:10 GMT - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: M-100. Launch Vehicle: M-100.
  • - . Nation: USSR. Apogee: 90 km (55 mi).

1977 August 25 - . 01:30 GMT - . Launch Site: Tanegashima. Launch Complex: Tanegashima T. LV Family: S. Launch Vehicle: TT-500. LV Configuration: TT-500 TT-500-2F.
  • Test mission - . Nation: Japan. Agency: NASDA. Apogee: 300 km (180 mi).

1977 August 25 - . 23:49 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17B. LV Family: Delta. Launch Vehicle: Delta 2313. LV Configuration: Delta 2313 615/D133.
  • Sirio 1 - . Mass: 220 kg (480 lb). Nation: Italy. Agency: CNR. Class: Technology. Type: Communications technology satellite. Spacecraft: Sirio. Completed Operations Date: 1989-09-28 . USAF Sat Cat: 10294 . COSPAR: 1977-080A. Apogee: 35,869 km (22,287 mi). Perigee: 35,755 km (22,217 mi). Inclination: 9.6000 deg. Period: 1,437.40 min. Experimental commsat. SIRIO (Satellite Italiano Ricerca Industriale Orientata). Launch time 2350:00 GMT. Geographical longitude of geostationary orbit 15 deg W. SIRIO is a spin stabilized geostationary experimental communications satellite. Characteristics of satellite: Weight at launch 398 kg, in orbit 218 kg. Configuration - cylindrical, height 1.981m, diameter 1.433 m, nominal life two years. Positioned in geosynchronous orbit over the Atlantic Ocean at 15 deg W in 1977-1981; over the Atlantic Ocean 25 deg W in 1981-1983; over the Indian Ocean 65 deg E in 1983-1985 As of 4 September 2001 located at 86.65 deg E drifting at 0.265 deg E per day. As of 2007 Mar 11 located at 75.38E drifting at 0.003E degrees per day.

1978 August 25 - . Launch Site: Baikonur. Launch Complex: Baikonur LC181. LV Family: MR-UR-100. Launch Vehicle: MR-UR-100U 15A16.
  • Joint flight trials launch - . Nation: USSR. Agency: RVSN. Apogee: 1,000 km (600 mi).

1978 August 25 - . 01:30 GMT - . Launch Site: Tanegashima. Launch Complex: Tanegashima T. LV Family: S. Launch Vehicle: TT-500. LV Configuration: TT-500 TT-500-4F.
  • Test mission - . Nation: Japan. Agency: NASDA. Apogee: 300 km (180 mi).

1979 August 25 - . 01:40 GMT - . Launch Site: Tanegashima. Launch Complex: Tanegashima T. LV Family: S. Launch Vehicle: TT-500. LV Configuration: TT-500 TT-500-6F.
  • Test mission - . Nation: Japan. Agency: NASDA. Apogee: 300 km (180 mi).

1980 August 25 - . 13:14 GMT - . Launch Site: Ascension. Launch Vehicle: Rocketsonde. LV Configuration: AN/DMQ-9.
  • - . Nation: USA. Agency: MRN. Apogee: 85 km (52 mi).

1981 August 25 - . Launch Site: White Sands. Launch Complex: White Sands LC36. LV Family: Honest John. Launch Vehicle: Taurus Orion. LV Configuration: Taurus Orion NASA 33.06UL?.
  • Aeronomy mission - . Nation: USA. Agency: NASA. Apogee: 200 km (120 mi).

1982 August 25 - . 14:00 GMT - . Launch Site: Thumba. LV Family: M-100. Launch Vehicle: M-100.
  • - . Nation: USSR. Apogee: 90 km (55 mi).

1983 August 25 - . 20:02 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC200/40. LV Family: Proton. Launch Vehicle: Proton-K/DM. LV Configuration: Proton-K/DM 316-02.
  • Raduga 13 - . Payload: Raduga s/n 24L. Mass: 1,940 kg (4,270 lb). Nation: USSR. Agency: MOM. Class: Communications. Type: Military communications satellite. Spacecraft: Raduga . Completed Operations Date: 1987-10-13 . USAF Sat Cat: 14307 . COSPAR: 1983-088A. Apogee: 36,447 km (22,647 mi). Perigee: 36,323 km (22,570 mi). Inclination: 8.0000 deg. Period: 1,466.80 min. Operation of telephone and telegraph radiocommunications and transmission of television programmes. Positioned in geosynchronous orbit at 45 deg E in 1983-1987 As of 28 August 2001 located at 174.92 deg W drifting at 7.555 deg W per day. As of 2007 Mar 10 located at 42.12E drifting at 7.563W degrees per day.

1986 August 25 - . 14:32 GMT - . Launch Site: Kapustin Yar. Launch Complex: Kapustin Yar V-2. LV Family: M-100. Launch Vehicle: M-100B.
  • - . Nation: USSR. Apogee: 85 km (52 mi).

1987 August 25 - . 19:05 GMT - . Launch Site: Kheysa. LV Family: M-100. Launch Vehicle: M-100B.
  • - . Nation: USSR. Apogee: 86 km (53 mi).

1988 August 25 - .
  • Kvant FGB Tug re-enters - . Nation: USSR. Flight: Mir EO-3. Spacecraft: Kvant. The FGB tug's multiple docking manoeuvres in April 1987 had cut into its already-reduced propellant supply. Unable to deorbit itself to a controlled burn-up in the atmosphere, the FGB was instead commanded to boost itself into a storage orbit 40 km above Mir. From there its orbit decayed until it made an uncontrolled re-entry.

1988 August 25 - . 06:59 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC5. LV Family: Scout. Launch Vehicle: Scout G. LV Configuration: Scout G-1 S214C.
  • Transit O-25 - . Mass: 59 kg (130 lb). Nation: USA. Agency: USN. Program: Transit. Class: Navigation. Type: Navigation satellite. Spacecraft: Transit. USAF Sat Cat: 19419 . COSPAR: 1988-074A. Apogee: 1,176 km (730 mi). Perigee: 1,032 km (641 mi). Inclination: 89.8000 deg. Period: 107.30 min. Summary: Dual launch of operational Transits manufactured in the 1960's to replenish the constellation..
  • Transit O-31 - . Mass: 59 kg (130 lb). Nation: USA. Agency: USN. Program: Transit. Class: Navigation. Type: Navigation satellite. Spacecraft: Transit. USAF Sat Cat: 19420 . COSPAR: 1988-074B. Apogee: 1,174 km (729 mi). Perigee: 1,032 km (641 mi). Inclination: 89.8000 deg. Period: 107.30 min.

1989 August 25 - .
  • Voyager 2 Neptune Flyby - . Nation: USA. Spacecraft: Voyager.

1990 August 25 - . Launch Site: Wallops Island. LV Family: Black Brant. Launch Vehicle: Black Brant 10CM1. LV Configuration: Black Brant 10CM1 SDI BP-1.
  • SPFE 1 (LACE Target) Technology test - . Nation: USA. Agency: SDIO. Apogee: 200 km (120 mi).

1991 August 25 - . 08:40 GMT - . Launch Site: Tanegashima. Launch Complex: Tanegashima N. LV Family: Delta. Launch Vehicle: H-1. LV Configuration: H-1 H-23(F).
  • Yuri 3B - . Payload: BS-3b. Mass: 1,115 kg (2,458 lb). Nation: Japan. Manufacturer: Lockheed. Program: BS. Class: Communications. Type: Civilian communications satellite. Spacecraft: AS 3000. Completed Operations Date: 1999-04-05 . USAF Sat Cat: 21668 . COSPAR: 1991-060A. Apogee: 36,244 km (22,520 mi). Perigee: 36,171 km (22,475 mi). Inclination: 3.2000 deg. Period: 1,457.70 min. Summary: TV; 110 deg E. Positioned in geosynchronous orbit at 110 deg E in 1991-1999 As of 3 September 2001 located at 91.59 deg E drifting at 5.350 deg W per day. As of 2007 Mar 9 located at 152.69E drifting at 5.334W degrees per day..

1993 August 25 - . 10:00 GMT - . Launch Site: Barking Sands. Launch Complex: Barking Sands LC42. LV Family: Polaris. Launch Vehicle: STARS. LV Configuration: STARS M-1.
  • Zodiac Beauchamp Target mission - . Nation: USA. Agency: USA SDC. Apogee: 900 km (550 mi).

1994 August 25 - . 01:43 GMT - . Launch Site: Alcantara. LV Family: Hawk. Launch Vehicle: Nike Orion. LV Configuration: Nike Orion NASA 31.104GE.
  • GUARA MALTED / CADRE Ionosphere mission - . Nation: USA. Agency: NASA Greenbelt. Apogee: 126 km (78 mi).

1994 August 25 - . 14:25 GMT - . Launch Site: Baikonur. Launch Complex: Baikonur LC1. LV Family: R-7. Launch Vehicle: Soyuz 11A511U. LV Configuration: Soyuz 11A511U N15000-636.
  • Progress M-24 - . Payload: Progress M s/n 224. Mass: 7,250 kg (15,980 lb). Nation: Russia. Agency: MOM. Program: Mir. Class: Manned. Type: Manned logistics spacecraft. Flight: Mir EO-16; Mir LD-4. Spacecraft: Progress M. Duration: 40.35 days. Completed Operations Date: 1994-10-04 22:41:48 . Decay Date: 1994-10-04 22:41:48 . USAF Sat Cat: 23215 . COSPAR: 1994-052A. Apogee: 397 km (246 mi). Perigee: 394 km (244 mi). Inclination: 51.6000 deg. Period: 92.47 min. Unmanned resupply vessel to Mir. Failed to dock with Mir on 27 Aug 1994. A second automatic docking attempt on 30 Aug 1994 also failed and the Progress collided with the Kvant module. A third and final attempt, manually controlled by Mir commander Yuriy Malenchenko, was successful on 2 Sep 1994 13:30:28 GMT. The Mir commander and flight engineer, Yuriy Malenchenko and Talgat Musabaev, made a spacewalk on 9 Sep 1994 to inspect the damage to the Kvant module made when the Progress collided with Kvant. Undocked on 4 Oct 1994 18:55:52 GMT, leaving the rear docking port free for Soyuz TM-20. Destroyed in reentry over the Pacific at 38.4 deg S, 137.4 deg W,on 4 Oct 1994 22:43:00 GMT. Total free-flight time 8.12 days. Total docked time 32.23 days.

1995 August 25 - . Launch Site: Arctic Ocean. Launch Pad: 90.0 N x 0.0 E. Launch Platform: TK-20. LV Family: R-39. Launch Vehicle: Rif.
  • Test mission - . Nation: Russia. Agency: VMF. Apogee: 1,000 km (600 mi).

1997 August 25 - . 14:39 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. LV Family: Delta. Launch Vehicle: Delta 7920-8. LV Configuration: Delta 7920-8 D247.
  • ACE - . Payload: ACE. Nation: USA. Agency: NASA Greenbelt. Manufacturer: APL. Class: Earth. Type: Magnetosphere satellite. Spacecraft: ACE. USAF Sat Cat: 24912 . COSPAR: 1997-045A. Apogee: 128,196 km (79,657 mi). Perigee: 176 km (109 mi). Period: 86,411.37 min. Summary: Earth-Sun L1 point.

1998 August 25 - . 23:07 GMT - . Launch Site: Kourou. Launch Complex: Kourou ELA2. LV Family: Ariane. Launch Vehicle: Ariane 44P. LV Configuration: Ariane 44P-3 V109.
  • ST-1 - . Payload: Singapore-Taiwan 1. Nation: Singapore. Agency: Arianespace. Manufacturer: Toulouse. Program: ST. Class: Communications. Type: Civilian communications satellite. Spacecraft: Eurostar 2000 . USAF Sat Cat: 25460 . COSPAR: 1998-049A. Apogee: 35,804 km (22,247 mi). Perigee: 35,771 km (22,227 mi). Inclination: 0.1000 deg. Period: 1,436.10 min. Singapore-Taiwan-1 Matra Marconi Space Eurostar 2000 class satellite to provide communications for Singapore Telecom and Chunghwa Telecom of Taiwan. Geostationary at 88.0 degrees E. Positioned in geosynchronous orbit at 88 deg E in 1998-1999 As of 5 September 2001 located at 88.04 deg E drifting at 0.009 deg W per day. As of 2007 Mar 10 located at 88.05E drifting at 0.007W degrees per day.

1998 August 25 - .
1999 August 25 - .
  • Mir News 467: Mir-routine - . Nation: Russia. Program: Mir. Flight: Mir EO-27; Mir EO-26/-27. In fact the description 'routine' does not fully cover the activities on board in this period. The major parts of the work are aimed at the preparation of the Mir-space station for the upcoming unmanned status. All available windows for radio communications are fully utilised, and when there are no conversations the Packet Radio is red-hot, for the stream of radiograms with a lot of instructions and recommendations does not decrease. Often the cosmonauts speak with TsUP during the P/R circular saw rattles. Most of the subjects in those radiograms can be determined by the questions of the cosmonauts or supplements or changes given by TsUP.

    On 23.08 the SO, the docking compartment attached to the module Kristall, was conserved and closed. The conservation of the module Priroda had been put back to 25.08.99, which means that thereafter no experiments can be executed with equipment installed in that module.

    The experiments Dakon (convection experiment) and Alice-2 (a fluid experiment) have been active until 24.08. Observations with the Lidar Alisa were concluded on 19.08.99 and the gathered data were copied to cassettes for retrieval to earth.

    Fortunately on request by CNES the return of the crew had been put back from 23 to 28.08, for there still has a lot of work to be done.

    The freighter Progress-M42, docked to the complex, is fully loaded with all what is superfluous. Among them also containers with urine. This urine cannot be used any more to regenerate technical water, for the SRVU, the system for this regeneration, had also to be switched off. The most important part of the activities in this stage is the switching off of all systems which are not needed during the unmanned status. For instance on 24.08 the cosmonauts had to check whether the furnace Krater had been switched off.

    In the next months the Progress-M42 will now and then alter the orbit of the Mir complex. This happened also at least 3 times during the past week and this increased the altitude of Mir to approx. 359/353 KM.

    After Priroda also the modules Kvant-2 and Kristall will be conserved.

    The small air leakage in the module Kvant-2 has not been located thus far and a gradual decrease of the pressure in that module can be expected. I do not know if the module Kristall will be closed. The module Spektr cannot be conserved, for this module is not operational as of 27.06.1997.

    Extra air seal checks have to be done on equipment which has valves to outer space. (For instance the Vozdukh CO2 scrubbers, draining CO2 into open space, and the Electrons doing the same with the hydrogen, a by-product of the electrolyse process for the oxygen production.) So there must be some concern about the module Kvant-2. On 25.08 the cosmonauts got orders to report regularly the air pressure inside the P.G.O. (instrument and cargo compartment of the Kvant-2).

    Radio traffic reveals that the cosmonauts are working under great pressure. During the disc-preparation of this report there were only 2 days left for all what still has to be done, inclusive items like the checks of the systems of the return vehicle Soyuz-TM29, the execution of a number of physical exercises and medical checks. Now and then I am inclined to presume that the return must be put back some days (if this is operationally possible).

    Radio traffic is also dedicated to the selection of what the cosmonauts will have to bring back to earth and which has to be stowed into the descent module (SA) of the ship Soyuz-TM29. It will be pretty tight in there! Press conference: On 21.08.1999 there were 2 press conferences at TsUP.

    Main subject was an evaluation of the results of the 27th Main Expedition to Mir. The communications windows were pretty short and so the questions and answers had to be very short. The crew fulfilled all their tasks. Haignere was very pleased with his Perseus program, in which he also worked with earlier installed equipment from CNES as well as from the German DLR, such as the Titus furnace and many devices for geophysical- and ionospheric research.

    Commander Afanasyev told that he did not like that Mir would fly unmanned so long. In one of the press conferences also the eventual 28th final Main expedition was mentioned. Thus far this is still unsure and depends on the funding.

    Chris van den Berg, NL-9165/A-UK3202


2003 August 25 - . 05:35 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17B. Launch Pad: SLC17B. LV Family: Delta. Launch Vehicle: Delta 7920H. LV Configuration: Delta 7920H D300.
  • SIRTF - . Mass: 923 kg (2,034 lb). Nation: USA. Agency: NASA. Class: Astronomy. Type: Infrared astronomy satellite. Spacecraft: SIRTF. USAF Sat Cat: 27871 . COSPAR: 2003-038A. Originally to have launched January 9, 2003. Delayed six times. The Space Infrared Telescope Facility (SIRTF) was the last of NASA's 'Great Observatories'. It had a 0.85-meter infrared telescope, with a liquid-helium cooled focal plane carrying the three main instruments. SIRTF was launched by the second Delta II Heavy. The second stage entered a 166 x 167 km x 31.5 deg Earth parking orbit, and after about 33 minutes of coast, passing south of Madagascar, restarted at 0613 UTC to enter a hyperbolic orbit with a perigee of 170 km, an eccentricity of 1.0061, and a velocity of 11.05 km/s. This placed it in a solar orbit of 0.996 x 1.019 AU x 1.14 deg with a year about 4 days longer than Earth's.

2005 August 25 - . 08:01 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg LF26. Launch Pad: LF26?. LV Family: Minuteman. Launch Vehicle: Minuteman 3.
  • SERV-2 FDEP GT188GM - . Nation: USA. Agency: USAF AFSPC. Apogee: 1,300 km (800 mi).

2006 August 25 - . 14:30 GMT - . Launch Site: White Sands. LV Family: Black Brant. Launch Vehicle: Black Brant 9. LV Configuration: Black Brant IX NASA 36.237DR.
2009 August 25 - . 08:00 GMT - . Launch Site: Goheung. LV Family: KSLV. Launch Vehicle: KSLV-I. LV Configuration: Naro KSLV-1. FAILURE: First and second stages operated correctly, but half of payload fairing failed to separate. Extra mass prevented the second stage and payload from reaching orbital velocity, and the satellite reentered over New Guinea..
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