ADEOS II

Last updated

ADEOS II
Adeos2.jpg
Illustration of ADEOS II
NamesAdvanced Earth Observing Satellite II
Midori II
ADEOS 2
Mission type Earth observation
Environmental monitoring
Operator NASDA
COSPAR ID 2002-056A OOjs UI icon edit-ltr-progressive.svg
SATCAT no. 27597
Mission duration5 years (planned)
10 months and 9 days (achieved)
Spacecraft properties
Bus ADEOS
Manufacturer Mitsubishi Electric Corporation
Launch mass3,680 kg (8,110 lb)
Payload mass1,300 kg (2,900 lb)
Dimensions6 × 4 × 4 m (20 × 13 × 13 ft)
Power5.3 kW
Start of mission
Launch date14 December 2002, 01:31 UTC
Rocket H-IIA 202
Launch site Tanegashima Space Center, Yoshinobu 1
Contractor Mitsubishi Heavy Industries
End of mission
Last contact23 October 2003, 23:55 UTC
Orbital parameters
Reference system Geocentric orbit [1]
Regime Sun-synchronous orbit
Perigee altitude 806 km (501 mi)
Apogee altitude 807 km (501 mi)
Inclination 98.70°
Period 101.00 minutes
Instruments
 

ADEOS II (Advanced Earth Observing Satellite 2) was an Earth observation satellite (EOS) launched by NASDA, [2] with contributions from NASA and CNES, in December 2002. [3] and it was the successor to the 1996 mission ADEOS I. The mission ended in October 2003 after the satellite's solar panels failed. [4]

Contents

Mission overview

The three primary objectives of the mission, as identified by NASDA, were to: [5]

The project had a proposed minimum life of three years, with a five-year goal. [6]

Instruments

Annotation of ADEOS II and its instruments Adeos2-annotated.png
Annotation of ADEOS II and its instruments

The satellite was equipped with five primary instruments: Advanced Microwave Scanning Radiometer (AMSR), Global Imager (GLI), Improved Limb Atmospheric Spectrometer-II (ILAS-II), Polarization and Directionality of the Earth's Reflectances (POLDER), and SeaWinds. These instruments were designed to monitor Earth's water cycle, study biomass in the carbon cycle, and detect trends in long-term climate change. The mission was established to continue the work undertaken by ADEOS I between 1996 and 1997. [6] [7]

Advanced Microwave Scanning Radiometer (AMSR)

AMSR monitors water vapor, precipitation, sea surface, wind, and ice by means of microwave radiation emanating from Earth's surface and atmosphere. It is a radiometer that operates in eight frequency bands covering 6.9 GHz to 89 GHz, and monitors the horizontal and vertical polarizations separately. With a dish of 2 m (6 ft 7 in) aperture, the spatial resolution is 5 km (3.1 mi) in the 89 GHz band, degrading to 60 km (37 mi) at 6.9 GHz. [8]

Global Imager (GLI)

GLI (GLobal Imager) is an optical sensor to observe solar radiation reflected from Earth's surface and map vegetation, clouds, etc. The data is acquired in 23 visible/near-infrared, and in 13 far infrared channels. The scanning is done by a rotating mirror covering 12 km (7.5 mi) along track and 1,600 km (990 mi) cross-track, and at a resolution of 1 km (0.62 mi). [9]

Improved Limb Atmospheric Spectrometer 2 (ILAS-2)

ILAS-2 maps the vertical distribution of O3, NO2, HNO3, H2O, CFC-11, CFC-12, CH4, N2O, and ClONO2, as well as the distribution of temperature and pressure, all in the stratosphere. It observes the absorption spectrum in Earth's atmospheric limb in the 3-13 micron wavelength band, and in the 753-784 nm band of the occulting Sun. The altitude resolution is 100 m (330 ft). [10]

Polarization and Directionality of Earth's Reflectances (POLDER)

POLDER measures the polarization, and spectral characteristics of the solar light reflected by aerosols, clouds, oceans and land surfaces. Eight narrow band wavelengths (443, 490, 564, 670, 763, 765, 865, and 910 nm) are covered by the instrument which enables identification of the physical and optical properties of the aerosols and their role in radiation budget. [11]

SeaWinds

SeaWinds is a scatterometer that provides wind speed and direction by observing the microwave reflection from ocean surfaces. With its 1 m (3 ft 3 in) dish, it scans the surface along conical surfaces at 18 RPM. It provides speed at an accuracy of 2 m/s, wind direction at an accuracy of 20°, both with a spatial resolution of 5 km (3.1 mi). [12]

Subsystems

In addition to the five main instruments, nine avionic subsystems were allocated to the bus module. These were the Communication and Data-Handling Subsystem (C&DH), Inter-Orbit Communication Subsystem (IOCS), Mission Data Processing Subsystem (MDPS), Optical Data Recorder (ODR), Electrical Power Subsystem (EPS), Paddle Subsystem (PDL), Attitude and Orbit Control Subsystem (AOCS), Reaction Control Subsystem (RCS), and the Direct Transmission Subsystem (DTL). [2]

The C&DH subsystem received and decoded the satellite's tracking control command signals and acted as a processing interface between the instruments. It was capable of adjusting settings on the instruments such as temperature and voltage. The IOCS was used to communicate with data relay satellites (see Data transfer ). [2]

The MDP device formatted mission data to be sent via the IOCS, and would process it into a data packet. The ODR was a large-volume storage device that used an optical magnetic disk system. The EPS provided power to the satellite's subsystems. The PDL managed the satellite's solar panel, and transferred electrical energy to the EPS. The solar panel was capable of generating 5 kW using 55,680 solar cells on a jointed mast. [2]

The AOCS was used to establish the attitude control following the satellite's deployment from the launch vehicle. It was subsequently used to adjust the satellite's attitude, orbit, and solar paddle. The AOCS was equipped with a number of attitude sensors, including a control-standard unit (IRC), an Earth sensor (ESA), and a fine Sun sensor assembly (FSSA). [2]

The RCS was used to generate propulsion power for attitude adjustments after deployment and control orbit using data from the AOCS. [2]

Data transfer

ADEOS II transferred data to and from Artemis and the Data Relay Test Satellite (DRTS). The Artemis connection transferred information over a 26 GHz Ka-band link (for payload data) and a 2 GHz S-band link (for telemetry, tracking and control data). [2]

These signals were then downlinked to the Earth Observation Center (EOC) via feeder link stations and the Redu Station. ADEOS II also sent mission data directly to NASA stations, which routed information to bodies such as the EOC and sensor-providing organisations. [2]

Launch

The mission was originally scheduled to launch aboard a H-II launch vehicle in February 2002. This was postponed as the Japanese Space Activities Commission would not launch without having three successful missions aboard the new H-IIA launch vehicle. [13]

The satellite was successfully launched from Tanegashima Space Center pad YLP-1 on 14 December 2002, aboard H-IIA 202. [14] Other payloads onboard included the Japanese MicroLabsat and WEOS devices, as well as the Australian FedSat. [15]

Failure

On 23 October 2003, the solar panel failed. At 23:49 UTC, the satellite switched to "light load" operation due to an unknown error. This was intended to power down all observation equipment to conserve energy. At 23:55 UTC, communications between the satellite and the ground stations ended, with no further telemetry received. [4] Further attempts to procure telemetry data on 24 October 2003 (at 00:25 and 02:05 UTC) also failed. [16]

Investigation

After the power failure, JAXA formed the Midori II anomaly investigation team. Analysis of data received before transmissions ceased showed that the solar panel's power output had decreased from 6 kW to 1 kW. The investigation team began surveying the mission to establish whether the failure was due to a technical malfunction or a solar flare. [4]

One hypothesis was that debris had impacted the satellite's power harness between the solar array and the satellite bus. The harness was a core of wires enclosed in multi-layer insulation. The debris impact was theorised to have caused an electric arc. [2]

The mission officially ended at the end of October 2003, with JAXA conceding that the "possibility of restoring the operations of Midori II [was] extremely slim". The mission, which had cost approximately 70 billion Yen (US$570 million) [15] was only able to recoup an estimated 300 million Yen through insurance. [4]

Related Research Articles

<span class="mw-page-title-main">JAXA</span> Japans national air and space agency

The Japan Aerospace Exploration Agency (JAXA) is the Japanese national air and space agency. Through the merger of three previously independent organizations, JAXA was formed on 1 October 2003. JAXA is responsible for research, technology development and launch of satellites into orbit, and is involved in many more advanced missions such as asteroid exploration and possible human exploration of the Moon. Its motto is One JAXA and its corporate slogan is Explore to Realize.

<span class="mw-page-title-main">Aqua (satellite)</span> NASA scientific research satellite

Aqua is a NASA scientific research satellite in orbit around the Earth, studying the precipitation, evaporation, and cycling of water. It is the second major component of the Earth Observing System (EOS) preceded by Terra and followed by Aura.

<span class="mw-page-title-main">IMAGE (spacecraft)</span> NASA satellite of the Explorer program

IMAGE is a NASA Medium Explorer mission that studied the global response of the Earth's magnetosphere to changes in the solar wind. It was believed lost but as of August 2018 might be recoverable. It was launched 25 March 2000, at 20:34:43.929 UTC, by a Delta II launch vehicle from Vandenberg Air Force Base on a two-year mission. Almost six years later, it unexpectedly ceased operations in December 2005 during its extended mission and was declared lost. The spacecraft was part of NASA's Sun-Earth Connections Program, and its data has been used in over 400 research articles published in peer-reviewed journals. It had special cameras that provided various breakthroughs in understanding the dynamics of plasma around the Earth. The principal investigator was Jim Burch of the Southwest Research Institute.

A scatterometer or diffusionmeter is a scientific instrument to measure the return of a beam of light or radar waves scattered by diffusion in a medium such as air. Diffusionmeters using visible light are found in airports or along roads to measure horizontal visibility. Radar scatterometers use radio or microwaves to determine the normalized radar cross section of a surface. They are often mounted on weather satellites to find wind speed and direction, and are used in industries to analyze the roughness of surfaces.

<span class="mw-page-title-main">Advanced Land Observation Satellite</span> Japanese Earth observation satellite

Advanced Land Observing Satellite (ALOS), also called Daichi, was a 3810 kg Japanese satellite launched in 2006. After five years of service, the satellite lost power and ceased communication with Earth, but remains in orbit.

<span class="mw-page-title-main">Interstellar Boundary Explorer</span> NASA satellite of the Explorer program

Interstellar Boundary Explorer is a NASA satellite in Earth orbit that uses energetic neutral atoms (ENAs) to image the interaction region between the Solar System and interstellar space. The mission is part of NASA's Small Explorer program and was launched with a Pegasus-XL launch vehicle on 19 October 2008.

<span class="mw-page-title-main">Tropical Rainfall Measuring Mission</span> Joint space mission between NASA and JAXA

The Tropical Rainfall Measuring Mission (TRMM) was a joint space mission between NASA and JAXA designed to monitor and study tropical rainfall. The term refers to both the mission itself and the satellite that the mission used to collect data. TRMM was part of NASA's Mission to Planet Earth, a long-term, coordinated research effort to study the Earth as a global system. The satellite was launched on 27 November 1997 from the Tanegashima Space Center in Tanegashima, Japan. TRMM operated for 17 years, including several mission extensions, before being decommissioned on 15 April 2015. TRMM re-entered Earth's atmosphere on 16 June 2015.

<span class="mw-page-title-main">ACRIMSAT</span> Satellite of NASAs Earth Observing System program

The Active Cavity Radiometer Irradiance Monitor Satellite, or ACRIMSAT was a satellite carrying the ACRIM-3 instrument. It was one of the 21 observational components of NASA's Earth Observing System program. The instrument followed upon the ACRIM-1 and ACRIM-2 instruments that were launched on multi-instrument satellite platforms. ACRIMSAT was launched on 20 December 1999 from Vandenberg Air Force Base as the secondary payload on the Taurus launch vehicle that launched KOMPSAT. It was placed into a high inclination of 98.30°, at 720 km. Sun-synchronous orbit from which the ACRIM-3 instrument monitored total solar irradiance (TSI). Contact with the satellite was lost on 14 December 2013.

<span class="mw-page-title-main">Global Change Observation Mission</span> JAXA project of long-term observation of Earth

GCOM, is a JAXA project of long-term observation of Earth environmental changes. As a part of Japan's contributions to GEOSS, GCOM will be continued for 10 to 15 years with observation and utilization of global geophysical data such as precipitation, snow, water vapor, aerosol, for climate change prediction, water management, and food security. On May 18, 2012, the first satellite "GCOM-W" was launched. On December 23, 2017, the second satellite "GCOM-C1" was launched.

<span class="mw-page-title-main">NOAA-17</span>

NOAA-17, also known as NOAA-M before launch, was an operational, polar orbiting, weather satellite series operated by the National Environmental Satellite Service (NESS) of the National Oceanic and Atmospheric Administration (NOAA). NOAA-17 also continued the series of Advanced TIROS-N (ATN) spacecraft begun with the launch of NOAA-8 (NOAA-E) in 1983 but with additional new and improved instrumentation over the NOAA A-L series and a new launch vehicle.

<span class="mw-page-title-main">NOAA-16</span>

NOAA-16, also known as NOAA-L before launch, was an operational, polar orbiting, weather satellite series operated by the National Environmental Satellite Service (NESS) of the National Oceanic and Atmospheric Administration (NOAA). NOAA-16 continued the series of Advanced TIROS-N (ATN) spacecraft that began with the launch of NOAA-8 (NOAA-E) in 1983; but it had additional new and improved instrumentation over the NOAA A-K series and a new launch vehicle. It was launched on 21 September 2000 and, following an unknown anomaly, it was decommissioned on 9 June 2014. In November of 2015 it broke up in orbit, creating more than 200 pieces of debris.

<span class="mw-page-title-main">NOAA-18</span>

NOAA-18, also known as NOAA-N before launch, is an operational, polar orbiting, weather satellite series operated by the National Environmental Satellite Service (NESS) of the National Oceanic and Atmospheric Administration (NOAA). NOAA-18 also continued the series of Advanced TIROS-N (ATN) spacecraft begun with the launch of NOAA-8 (NOAA-E) in 1983 but with additional new and improved instrumentation over the NOAA A-M series and a new launch vehicle. NOAA-18 is in an afternoon equator-crossing orbit and replaced NOAA-17 as the prime afternoon spacecraft.

<span class="mw-page-title-main">NOAA-15</span>

NOAA-15, also known as NOAA-K before launch, is an operational, polar-orbiting of the NASA-provided Television Infrared Observation Satellite (TIROS) series of weather forecasting satellite operated by National Oceanic and Atmospheric Administration (NOAA). NOAA-15 was the latest in the Advanced TIROS-N (ATN) series. It provided support to environmental monitoring by complementing the NOAA/NESS Geostationary Operational Environmental Satellite program (GOES).

<span class="mw-page-title-main">Earth Observation Center</span> Observation facility of JAXA

The Earth Observation Center is a Japanese Aerospace Exploration Agency (JAXA) aeronautical research facility located in Hatoyama, Saitama, Japan. It utilizes remote sensing technologies such as satellites to study Earth's environment from outer space. The research done by this center has a substantial impact on the study of the Earth's environmental phenomena, such as global warming.

<span class="mw-page-title-main">ADEOS I</span> Japanese Earth observation satellite

ADEOS I was an Earth observation satellite launched by NASDA in 1996. The mission's Japanese name, Midori means "green". The mission ended in July 1997 after the satellite sustained structural damage to the solar panel. Its successor, ADEOS II, was launched in 2002. Like the first mission, it ended after less than a year, also following solar panel malfunctions.

<span class="mw-page-title-main">Suomi NPP</span>

The Suomi National Polar-orbiting Partnership, previously known as the National Polar-orbiting Operational Environmental Satellite System Preparatory Project (NPP) and NPP-Bridge, is a weather satellite operated by the United States National Oceanic and Atmospheric Administration (NOAA). It was launched in 2011 and is currently in operation.

<span class="mw-page-title-main">NISAR (satellite)</span> Joint NASA-ISRO synthetic radar aperture spacecraft

The NASA-ISRO Synthetic Aperture Radar (NISAR) mission is a joint project between NASA and ISRO to co-develop and launch a dual-frequency synthetic aperture radar on an Earth observation satellite. The satellite will be the first radar imaging satellite to use dual frequencies. It will be used for remote sensing, to observe and understand natural processes on Earth. For example, its left-facing instruments will study the Antarctic cryosphere. With a total cost estimated at US$1.5 billion, NISAR is likely to be the world's most expensive Earth-imaging satellite.

<span class="mw-page-title-main">NOAA-9</span> American weather satellite

NOAA-9, known as NOAA-F before launch, was an American weather satellite operated by the National Oceanic and Atmospheric Administration (NOAA) for use in the National Environmental Satellite Data and Information Service (NESDIS). It was the second of the Advanced TIROS-N series of satellites. The satellite design provided an economical and stable Sun-synchronous platform for advanced operational instruments to measure the atmosphere of Earth, its surface and cloud cover, and the near-space environment.

NOAA-10, known as NOAA-G before launch, was an American weather satellite operated by the National Oceanic and Atmospheric Administration (NOAA) for use in the National Environmental Satellite Data and Information Service (NESDIS). It was the third of the Advanced TIROS-N series of satellites. The satellite design provided an economical and stable Sun-synchronous platform for advanced operational instruments to measure the atmosphere of Earth, its surface and cloud cover, and the near-space environment.

<span class="mw-page-title-main">Space Weather Follow On-Lagrange 1</span>

Space Weather Follow On-Lagrange 1 (SWFO-L1) is a future spacecraft mission planned to monitor signs of solar storms, which may pose harm to Earth's telecommunication network. The spacecraft will be operated by the National Oceanic and Atmospheric Administration (NOAA), with launch scheduled for February 2025. It is planned to be placed at the Sun–Earth L1 Lagrange point, a location between the Earth and the Sun. This will allow SWFO-L1 to continuously watch the solar wind and energetic particles heading for Earth. SWFO-L1 is an ESPA Class Spacecraft, sized for launch on an Evolved Expendable Launch Vehicle Secondary Payload Adapter (ESPA) Grande ring in addition to the rocket's primary payload. The spacecraft's Solar Wind Instrument Suite (SWIS) which includes three instruments will monitor solar wind, and the Compact Coronagraph (CCOR) will monitor the Sun's surroundings to image coronal mass ejection (CME). A CME is a large outburst of plasma sent from the Sun towards interplanetary space.

References

  1. "ADEOS 2 2002-056A 27597". NASA. 28 October 2021. Retrieved 29 October 2021.PD-icon.svg This article incorporates text from this source, which is in the public domain .
  2. 1 2 3 4 5 6 7 8 9 "ADEOS-II (Advanced Earth Observing Satellite-II) / Midori-II". ESA eoPortal Directory. 2021. Retrieved 29 October 2021.
  3. "ADEOS-2". NASA. Archived from the original on 27 September 2010. Retrieved 30 October 2021.PD-icon.svg This article incorporates text from this source, which is in the public domain .
  4. 1 2 3 4 "Midori I (ADEOS I)". Satellite News Digest. 2006. Archived from the original on 5 October 2011. Retrieved 18 September 2010.
  5. "Scientific Goal". JAXA. 15 November 1999. Retrieved 27 September 2010.
  6. 1 2 "Advanced Earth Observing Satellite II" (PDF). NASA GSFC. 2007. Archived from the original (PDF) on 9 June 2010. Retrieved 17 September 2010.PD-icon.svg This article incorporates text from this source, which is in the public domain .
  7. "Midori II (ADEOS II)". Satellite News Digest. 2003. Archived from the original on 5 October 2011. Retrieved 17 September 2010.
  8. "AMSR". NASA. 28 October 2021. Retrieved 30 October 2021.PD-icon.svg This article incorporates text from this source, which is in the public domain .
  9. "GLI". NASA. 28 October 2021. Retrieved 30 October 2021.PD-icon.svg This article incorporates text from this source, which is in the public domain .
  10. "ILAS-2". NASA. 28 October 2021. Retrieved 30 October 2021.PD-icon.svg This article incorporates text from this source, which is in the public domain .
  11. "POLDER". NASA. 28 October 2021. Retrieved 30 October 2021.PD-icon.svg This article incorporates text from this source, which is in the public domain .
  12. "SeaWinds". NASA. 28 October 2021. Retrieved 30 October 2021.PD-icon.svg This article incorporates text from this source, which is in the public domain .
  13. "Missions - SeaWinds on ADEOS II". NASA JPL. 2002. Archived from the original on 20 September 2010. Retrieved 29 October 2021.PD-icon.svg This article incorporates text from this source, which is in the public domain .
  14. "ADEOS 2 (Midori 2)". Gunter's Space Page. Retrieved 19 September 2010.
  15. 1 2 "Midori 2 (ADEOS 2) - Summary". Space and Tech. 2001. Archived from the original on 22 June 2011. Retrieved 17 September 2010.
  16. "Operational Anomaly with Midori-II". JAXA. 25 October 2003. Archived from the original on 17 June 2011. Retrieved 27 September 2010.