IGS

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IGS

Japanese military surveillance satellite. Launched in optical and radar versions.

AKA: Jissho eisei;JSE. Status: Operational 2003. First Launch: 2003-03-28. Last Launch: 2015-03-26. Number: 14 .

Many details, including orbital parameters, were classified for the first time in Japan's post-war history. The satellites, called Optical-1 and Radar-1, carried either optical or synthetic aperture radar sensors. NASDA reported that deployment of each satellite's solar panels went as planned and that the spacecraft's' operations were nominal. Full information and transmissions services of the IGS system were expected to begin in March 2004 following the planned launch in August 2003 of Optical-2 and Radar-2. The design life of the satellites was five years.

A primary mission for the satellites was the monitoring of North Korea. Repeated testing of North Korea's Taepo Dong missiles, some of them overflying Japanese territory, provided the political impetus for the project.

Japan spent about 250 billion yen ($2.2 billion) on the IGS program up to the first launch and expected to spend 40 billion yen per year thereafter. The price of each spacecraft was believed to be about 50 billion yen. Another 50 billion yen was spent on the command, control and communications ground station.

Subtopics

IGS-Optical 1, (2), 2 Reconnaissance, optical satellite built by Mitsubishi Electric (MELCO), Japan. Launched 2003 - 2006.

IGS-Radar 1, (2), 2 Reconnaissance, radar satellite built by Mitsubishi Electric (MELCO), Japan. Launched 2003 - 2007.

IGS-Optical 3V Reconnaissance, optical satellite built by Mitsubishi Electric (MELCO), Japan. Launched 2007.

IGS-Optical 3, 4 Reconnaissance, optical satellite built by Mitsubishi Electric (MELCO), Japan. Launched 2009 - 2011.

IGS-Radar 3, 4, 5, Spare Reconnaissance, radar satellite built by Mitsubishi Electric (MELCO), Japan. Launched 2011 - 2017.

IGS-Optical 5V Reconnaissance, optical satellite built by Mitsubishi Electric (MELCO), Japan. Launched 2013.

IGS-Optical 5 Reconnaissance, optical satellite built by Mitsubishi Electric (MELCO), Japan. Launched 2015.

Family: Military surveillance sat, Surveillance. Country: Japan. Launch Vehicles: H-II, H-IIA, H-IIA 202, H-IIA 2024. Launch Sites: Tanegashima, Tanegashima Y. Agency: Mitsubishi. Bibliography: 2.

2003 March 28 - . 01:27 GMT - . Launch Site: Tanegashima. Launch Complex: Tanegashima Y. LV Family: H-2. Launch Vehicle: H-IIA 2024.

IGS-1a - . Mass: 850 kg (1,870 lb). Nation: Japan. Agency: NASDA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: IGS. Decay Date: 2014-07-18 . USAF Sat Cat: 27698 . COSPAR: 2003-009A. Apogee: 495 km (307 mi). Perigee: 483 km (300 mi). Inclination: 97.30 deg. Period: 94.20 min.
Optical reconnaisance satellite. First Japanese military space mission. Dual payload. Delayed from February 2003. The Tanegashima facility was under strict security, guarded by 400 police officers wearing bullet-proof vests. Waters near the pad were patrolled by the coast guard.

IGS-1b - . Mass: 1,200 kg (2,600 lb). Nation: Japan. Agency: NASDA. Class: Surveillance. Type: Civilian Radarsat. Spacecraft: IGS. Decay Date: 2012-07-26 . USAF Sat Cat: 27699 . COSPAR: 2003-009B. Apogee: 500 km (310 mi). Perigee: 489 km (303 mi). Inclination: 97.30 deg. Period: 94.20 min. Radar satellite..

2003 November 29 - . 04:33 GMT - . Launch Site: Tanegashima. Launch Complex: Tanegashima Y. LV Family: H-2. Launch Vehicle: H-IIA 2024. FAILURE: Destroyed by range safety after solid booster nozzle burn-through resulted in motor not separating from core.. Failed Stage: 0.

IGS-2a - . Mass: 850 kg (1,870 lb). Nation: Japan. Agency: NASDA. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: IGS. The launch failure meant that Japan's planned intelligence satellite constellation was crippled. The system was already in trouble due to the reported poor performance of the first two elements launched..

IGS-2b - . Mass: 1,200 kg (2,600 lb). Nation: Japan. Agency: NASDA. Class: Surveillance. Type: Civilian Radarsat. Spacecraft: IGS.

2006 September 11 - . 04:35 GMT - . Launch Site: Tanegashima. Launch Complex: Tanegashima Y. LV Family: H-2. Launch Vehicle: H-IIA 202.

IGS-3A - . Mass: 850 kg (1,870 lb). Nation: Japan. Agency: JIDF. Manufacturer: Melco. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: IGS. Decay Date: 2016-10-29 . USAF Sat Cat: 29393 . COSPAR: 2006-037A. Apogee: 491 km (305 mi). Perigee: 484 km (300 mi). Inclination: 97.30 deg. Information Gathering Satellite / Optical-2 military surveillance satellite, launched to replace IGS O-1 launched in 2003, which demonstrated technical problems. The first replacement, IGS-O-2, was lost in a launch failure in 2003..

2007 February 24 - . 04:41 GMT - . Launch Site: Tanegashima. Launch Complex: Tanegashima Y. LV Family: H-2. Launch Vehicle: H-IIA 2024.

IGS 2 - . Payload: IGS 4A. Mass: 1,200 kg (2,600 lb). Nation: Japan. Agency: CSICE, JAXA. Manufacturer: Melco. Class: Surveillance. Type: Civilian Radarsat. Spacecraft: IGS. Decay Date: 2014-04-13 . USAF Sat Cat: 30586 . COSPAR: 2007-005A. Information Gathering Satellite Radar-2. Japanese military satellite using a synthetic aperture radar for all-weather, 24-hour, high-resolution surveillance of the earth..

IGS 3V - . Payload: IGS 4B. Mass: 850 kg (1,870 lb). Nation: Japan. Agency: CSICE, JAXA. Manufacturer: Melco. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: IGS. Decay Date: 2013-11-12 . USAF Sat Cat: 30587 . COSPAR: 2007-005B.
Optical-3 Verification Satellite, an experimental satellite on a six-month mission to test payloads planned for the Optical-3 second-generation Japanese military optical surveillance satellite. The production-type Optical-3 satellite was expected to launch in 2009.

2009 November 28 - . 01:21 GMT - . Launch Site: Tanegashima. LV Family: H-2. Launch Vehicle: H-IIA 202.

IGS O-3 - . Nation: USA. Agency: Mitsubishi. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: IGS. USAF Sat Cat: 36104 . COSPAR: 2009-066A. Information Gathering Satellite, an optical surveillance satellite operated by Japan's Cabinet Satellite Intelligence Center..

2011 September 23 - . 04:36 GMT - . Launch Site: Tanegashima. LV Family: H-2. Launch Vehicle: H-IIA 202.

IGS 6A - . Mass: 1,000 kg (2,200 lb). Nation: Japan. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: IGS. USAF Sat Cat: 37813 . COSPAR: 2011-050A. IGS Optical-4 satellite to replenish Japan's military reconnaisance satellite constellation..

2011 December 12 - . 01:21 GMT - . Launch Site: Tanegashima. LV Family: H-2. Launch Vehicle: H-IIA 202.

IGS 7A - . Mass: 1,000 kg (2,200 lb). Nation: Japan. Class: Surveillance. Type: Military Radarsat. Spacecraft: IGS. USAF Sat Cat: 37954 . COSPAR: 2011-075A. Apogee: 500 km (310 mi). Perigee: 500 km (310 mi). Inclination: 97.00 deg. Military surveillance radarsat..

2013 January 27 - . 04:40 GMT - . Launch Site: Tanegashima. LV Family: H-2. Launch Vehicle: H-IIA 202.

IGS 8A - . Payload: JSE Reda-4. Mass: 1,000 kg (2,200 lb). Nation: Japan. Class: Surveillance. Type: Civilian Radarsat. Spacecraft: IGS. USAF Sat Cat: 39061 . COSPAR: 2013-002A. Apogee: 524 km (325 mi). Perigee: 512 km (318 mi). Inclination: 97.50 deg. Period: 94.90 min. IGS military radar satellite 4, with a synthetic aperture radar payload..

IGS 8B (DEMO) - . Payload: Jissho eisei. Mass: 1,000 kg (2,200 lb). Nation: Japan. Class: Surveillance. Type: Military surveillance satellite. Spacecraft: IGS. USAF Sat Cat: 39062 . COSPAR: 2013-002B. Apogee: 524 km (325 mi). Perigee: 512 km (318 mi). Inclination: 97.50 deg. Period: 94.98 min. Demonstration satellite, with a test optical imaging payload..

2015 February 1 - . 01:21 GMT - . Launch Site: Tanegashima. LV Family: H-2. Launch Vehicle: H-IIA 202.

IGS Radar Spare - . Mass: 1,000 kg (2,200 lb). Nation: Japan. Class: Surveillance. Type: Civilian Radarsat. Spacecraft: IGS. USAF Sat Cat: 40381 . COSPAR: 2015-004A. Apogee: 511 km (317 mi). Perigee: 490 km (300 mi). Inclination: 97.50 deg. The Radar Spare satellite (Reda Yobiki) in the Information Gathering Satellite (Joho Shushu Eisei) series were operated by Japan's Cabinet Satellite Intelligence Center..

2015 March 26 - . 01:21 GMT - . Launch Site: Tanegashima. LV Family: H-2. Launch Vehicle: H-IIA 202.

IGS Optical 5 - . Mass: 1,000 kg (2,200 lb). Nation: Japan. Class: Surveillance. Type: Surveillance satellite. Spacecraft: IGS. USAF Sat Cat: 40538 . COSPAR: 2015-015A. Apogee: 515 km (320 mi). Perigee: 511 km (317 mi). Inclination: 97.50 deg. Information Gathering Satellite Optical-5. Military optical surveillance satellite operated by the Japanese government. Sun synchronous orbit; 1015 GMT local time of the descending node..

2017 March 17 - . 01:20 GMT - . Launch Site: Tanegashima. LV Family: H-2. Launch Vehicle: H-IIA 202.

IGS Radar 5 - . Nation: Japan. Class: Surveillance. Type: Military Radarsat. Spacecraft: IGS. USAF Sat Cat: 42072 . COSPAR: 2017-015A. Apogee: 510 km (310 mi). Perigee: 500 km (310 mi). Inclination: 97.50 deg. See IGS-Radar 5. Japan launched the Joho shushu eisei Reda 5-goki (IGS Radar 5) spy satellite into polar orbit..

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