Encyclopedia Astronautica
HY-1



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HY-1
Credit: © Mark Wade
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HY-1
Credit: via Chen Lan
Chinese earth land resources satellite. Operational, launched from 2002.05.15 (Hai Yang 1).

The Haiyang-1 (HY-1 or Ocean-1) satellite was equipped with a 10-band IR ocean color scanner and a 4-band CCD camera and was designed to end China's reliance on foreign satellites for marine observation. A total of five HY-1's were planned, with one launch every other year through 2010.

The Chinese Academy of Space Technology (CAST) announced on 11 August 1998 that it was developing a small satellite bus (CAST968) for science and earth observation missions. The first two satellites based on this bus were to be the Shijian-5 (SJ-5) and Haiyang-1 (HY-1 or Ocean-1). Both satellites would weigh 340 kg and had two solar panels. HY-1 was to be equipped with a 10-band IR ocean color scanner and a 4-band CCD camera. HY-1 completed a major design review in July 1999 and an electronic test model of the spacecraft was delivered in late 1999. In October 2000 China announced that the HY-1 would launch during 2001. China's National Ocean Administration was to build two ground stations for HY-1: one in Sanya, Hainan Island, the other near Beijing.

Gross mass: 340 kg (740 lb).
First Launch: 2002.05.15.
Last Launch: 2011.08.15.
Number: 3 .

More... - Chronology...


Associated Countries
See also
  • CZ China's first ICBM, the DF-5, first flew in 1971. It was a two-stage storable-propellant rocket in the same class as the American Titan, the Russian R-36, or the European Ariane. The DF-5 spawned a long series of Long March ("Chang Zheng") CZ-2, CZ-3, and CZ-4 launch vehicles. These used cryogenic engines for upper stages and liquid-propellant strap-on motors to create a family of 12 Long-March rocket configurations capable of placing up to 9,200 kg into orbit. In 2000 China began development of a new generation of expendable launch vehicles using non-toxic, high-performance propellants with supposedly lower operating costs. However these encountered development delays, and it seemed the reliable Long March series of rockets would continue in operational use for nearly fifty years before being replaced. More...

Associated Launch Vehicles
  • CZ Chinese orbital launch vehicle. China's first ICBM, the DF-5, first flew in 1971. It was a two-stage storable-propellant rocket in the same class as the American Titan, the Russian R-36, or the European Ariane. The DF-5 spawned a long series of Long March ("Chang Zheng") CZ-2, CZ-3, and CZ-4 launch vehicles. These used cryogenic engines for upper stages and liquid-propellant strap-on motors to create a family of 12 Long-March rocket configurations capable of placing up to 9,200 kg into orbit. In 2000 China began development of a new generation of expendable launch vehicles using non-toxic, high-performance propellants with supposedly lower operating costs. However these encountered development delays, and it seemed the reliable Long March series of rockets would continue in operational use for nearly fifty years before being replaced. More...
  • CZ-2C Chinese orbital launch vehicle. The CZ-2C was the definitive low earth orbit launch vehicle derived from DF-5 ICBM. It became the basis for an entire family of subsequent Long March vehicles. Many adaptive modifications were made to the configuration of the CZ-2A to handle a variety of new satellites and upper stages. The CZ-2C had improved technical performance and payload capacity compared to the CZ-2A, with later versions having a payload capability of 2,800 kg into a 200 km circular orbit. More...
  • CZ-4B Chinese orbital launch vehicle. The CZ-4B introduced in 1999 was an improved model of the CZ-4B with an enhanced third stage and fairing. It measured 44.1 metres in length with a first stage thrust of 300 tonnes. More...

Associated Manufacturers and Agencies
  • CAST Chinese manufacturer of spacecraft. China Academy of Space Technology, Beijing, China. More...

Bibliography
  • McDowell, Jonathan, Jonathan's Space Home Page (launch records), Harvard University, 1997-present. Web Address when accessed: here.
  • Chen Lan, Dragon in Space, Web Address when accessed: here.
  • NASA/GSFC Orbital Information Group Website, Web Address when accessed: here.
  • Space-Launcher.com, Orbital Report News Agency. Web Address when accessed: here.

Associated Launch Sites
  • Taiyuan China's launch site for launch of polar orbiting satellites, also known as Wuzhai. Taiyuan Satellite Launch Center (TSLC) is situated in Kelan County, the northwest part of Shanxi Province, 280 km by road from Taiyuan City. More...

HY-1 Chronology


2002 May 15 - . 01:50 GMT - . Launch Site: Taiyuan. Launch Complex: Taiyuan LC1. LV Family: CZ. Launch Vehicle: CZ-4B. LV Configuration: Chang Zheng 4B CZ4B-4 (67).
  • Haiyang 1 - . Mass: 360 kg (790 lb). Nation: China. Agency: CASC. Class: Earth. Type: Earth resources satellite. Spacecraft: HY-1. USAF Sat Cat: 27430 . COSPAR: 2002-024A. Apogee: 799 km (496 mi). Perigee: 785 km (487 mi). Inclination: 98.4000 deg. Period: 100.70 min. The HY-1 (Haiyang-1) marine observation satellite separated shortly after the FY-1D. The 360 kg HY-1 was based on the SJ-5 bus and carried an IR radiometer and CCD imager for oceanographic studies. Between May 21 and May 26, HY-1 lowered its orbit to 793 x 799 km using on-board propulsion.

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..

2011 August 15 - . 22:57 GMT - . Launch Site: Taiyuan. Launch Complex: Taiyuan LC2. LV Family: CZ. Launch Vehicle: CZ-4B.
  • Haiyang 2A - . Nation: China. Class: Earth. Type: Earth resources satellite. Spacecraft: HY-1. USAF Sat Cat: 37781 . COSPAR: 2011-043A. Apogee: 967 km (600 mi). Perigee: 966 km (600 mi). Inclination: 99.4000 deg. Period: 104.40 min. Summary: Oceanographic satellite with a microwave radiometer, a radar altimeter and a radar scatterometer to monitor ocean conditions..

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