CHIPS (satellite)

Last updated

Cosmic Hot Interstellar Plasma Spectrometer
CHIPSAT 2.jpg
CHIPS (Explorer 82) satellite
NamesExplorer 82
UNEX-2
CHIPS
Mission type Extreme ultraviolet research
Operator NASA / Space Sciences Laboratory
COSPAR ID 2003-002B OOjs UI icon edit-ltr-progressive.svg
SATCAT no. 27643
Website CHIPS
Mission duration1 year (planned)
5 years, 3 months (achieved)
Spacecraft properties
SpacecraftExplorer LXXXII
Spacecraft typeCosmic Hot Interstellar Plasma Spectrometer
Bus CHIPS
Manufacturer SpaceDev
Launch mass60 kg (130 lb)
Dimensions5 × 2.8 × 3.2 m (16.4 × 9.2 × 10.5 ft)
Start of mission
Launch date13 January 2003, 00:45:00 UTC
Rocket Delta II 7320-10 (Delta 294)
Launch site Vandenberg, SLC-2W
Contractor Boeing Launch Services
Entered service2003
End of mission
DeactivatedApril 2008
Orbital parameters
Reference system Geocentric orbit [1]
Regime Low Earth orbit
Perigee altitude 578 km (359 mi)
Apogee altitude 594 km (369 mi)
Inclination 94.05°
Period 96.40 minutes
Explorer program
  RHESSI (Explorer 81)
GALEX (Explorer 83) 
 

CHIPS (Cosmic Hot Interstellar Plasma Spectrometer, also Explorer 82 or UNEX-2) was a NASA Explorer program satellite. It was launched on 12 January 2003 from Vandenberg Air Force Base aboard a Delta II with the larger satellite ICESat, and had an intended mission duration of one year. CHIPS was the second of NASA's University Explorer (UNEX) mission class. It performed spectroscopy from 90 to 250 Angstrom (9 to 26-nm) extreme ultraviolet (EUV) light. [2]

Contents

Mission

The primary objective of the science team, led by principal investigator Mark Hurwitz, was to study the million-degree gas in the local interstellar medium. CHIPS was designed to capture the first spectra of the faint, extreme ultraviolet glow that is expected to be emitted by the hot interstellar gas within about 300 light-years of the Sun, a region often referred to as the Local Bubble. Surprisingly, these measurements produced a null result, with only very faint EUV emissions detected, despite theoretical expectations of much stronger emissions. It was the first U.S. mission to use TCP/IP for end-to-end satellite operations control.

Spacecraft

The University of California, Berkeley's Space Sciences Laboratory (SSL) served as CHIP's primary ground station and manufactured the CHIPS spectrograph, designed to perform all-sky spectroscopy. Other ground network support was provided by ground stations at Wallops Flight Facility (WFF), Virginia and Adelaide, Australia. CHIPS's satellite bus was manufactured by SpaceDev.

Launch

CHIPS (Cosmic Hot Interstellar Plasma Spectrometer) is a NASA astrophysics spacecraft that was launched by a Delta II launch vehicle from Vandenberg Air Force Base at 00:45:00 UTC on 13 January 2003. [1] The 60 kg (130 lb), triaxially-stabilized spacecraft has a spectrograph covering the 9-26 nm wavelength band at a resolution of 0.1 nm, scanning the entire sky in chunks of 5° x 27° segments during each orbit. The targets are the hot and diffuse nebula at about a million degrees temperature. The band covers several strong emission lines. [3]

Solar observatory

In September 2005, the spacecraft was converted to a solar observatory. [4] From 3 April 2006 to 5 April 2008, CHIPS performed 1458 observations of the Sun. [5]

End of mission

Satellite operations were terminated in April 2008.

See also

Related Research Articles

<span class="mw-page-title-main">Laboratory for Atmospheric and Space Physics</span> Research organization at the University of Colorado Boulder

The Laboratory for Atmospheric and Space Physics (LASP) is a research organization at the University of Colorado Boulder. LASP is a research institute with over one hundred research scientists ranging in fields from solar influences, to Earth's and other planetary atmospherics processes, space weather, space plasma and dusty plasma physics. LASP has advanced technical capabilities specializing in designing, building, and operating spacecraft and spacecraft instruments.

<span class="mw-page-title-main">STS-80</span> 1996 American crewed spaceflight and longest duration Space Shuttle mission

STS-80 was a Space Shuttle mission flown by Space Shuttle Columbia. The launch was originally scheduled for 31 October 1996, but was delayed to 19 November for several reasons. Likewise, the landing, which was originally scheduled for 5 December, was pushed back to 7 December after bad weather prevented landing for two days.

<span class="mw-page-title-main">Wide Field and Planetary Camera 2</span>

The Wide Field and Planetary Camera 2 (WFPC2) is a camera formerly installed on the Hubble Space Telescope. The camera was built by the Jet Propulsion Laboratory and is roughly the size of a baby grand piano. It was installed by servicing mission 1 (STS-61) in 1993, replacing the telescope's original Wide Field and Planetary Camera (WF/PC). WFPC2 was used to image the Hubble Deep Field in 1995, the Engraved Hourglass Nebula and Egg Nebula in 1996, and the Hubble Deep Field South in 1998. During STS-125, WFPC2 was removed and replaced with the Wide Field Camera 3 as part of the mission's first spacewalk on May 14, 2009. After returning to Earth, the camera was displayed briefly at the National Air and Space Museum and the Jet Propulsion Laboratory before returning to its final home at the Smithsonian's National Air and Space Museum.

<span class="mw-page-title-main">Far Ultraviolet Spectroscopic Explorer</span> NASA satellite of the Explorer program

Far Ultraviolet Spectroscopic Explorer represented the next generation, high-orbit, ultraviolet space observatory covering the wavelength range of 90.5–119.5 nanometre (nm) of the NASA operated by the Johns Hopkins University Applied Physics Laboratory. FUSE was launched on a Delta II launch vehicle on 24 June 1999, at 15:44:00 UTC, as a part of NASA's Origins Program. FUSE detected light in the far ultraviolet portion of the electromagnetic spectrum, which is mostly unobservable by other telescopes. Its primary mission was to characterize universal deuterium in an effort to learn about the stellar processing times of deuterium left over from the Big Bang. FUSE resides in a low Earth orbit, approximately 760 km (470 mi) in altitude, with an inclination of 24.98° and a 99.80 minutes orbital period. Its Explorer program designation is Explorer 77.

<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.

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

Transition Region and Coronal Explorer was a NASA heliophysics and solar observatory designed to investigate the connections between fine-scale magnetic fields and the associated plasma structures on the Sun by providing high resolution images and observation of the solar photosphere, the transition region, and the solar corona. A main focus of the TRACE instrument is the fine structure of coronal loops low in the solar atmosphere. TRACE is the third spacecraft in the Small Explorer program, launched on 2 April 1998, and obtained its last science image on 21 June 2010, at 23:56 UTC.

<span class="mw-page-title-main">International Ultraviolet Explorer</span> Astronomical observatory satellite

International Ultraviolet Explorer, was the first space observatory primarily designed to take ultraviolet (UV) electromagnetic spectrum. The satellite was a collaborative project between NASA, the United Kingdom's Science and Engineering Research Council and the European Space Agency (ESA), formerly European Space Research Organisation (ESRO). The mission was first proposed in early 1964, by a group of scientists in the United Kingdom, and was launched on 26 January 1978 aboard a NASA Thor-Delta 2914 launch vehicle. The mission lifetime was initially set for 3 years, but in the end it lasted 18 years, with the satellite being shut down in 1996. The switch-off occurred for financial reasons, while the telescope was still functioning at near original efficiency.

<span class="mw-page-title-main">Hinode (satellite)</span> Japanese satellite

Hinode, formerly Solar-B, is a Japan Aerospace Exploration Agency Solar mission with United States and United Kingdom collaboration. It is the follow-up to the Yohkoh (Solar-A) mission and it was launched on the final flight of the M-V rocket from Uchinoura Space Center, Japan on 22 September 2006 at 21:36 UTC. Initial orbit was perigee height 280 km, apogee height 686 km, inclination 98.3 degrees. Then the satellite maneuvered to the quasi-circular sun-synchronous orbit over the day/night terminator, which allows near-continuous observation of the Sun. On 28 October 2006, the probe's instruments captured their first images.

<span class="mw-page-title-main">Cosmic Origins Spectrograph</span>

The Cosmic Origins Spectrograph (COS) is a science instrument that was installed on the Hubble Space Telescope during Servicing Mission 4 (STS-125) in May 2009. It is designed for ultraviolet (90–320 nm) spectroscopy of faint point sources with a resolving power of ≈1,550–24,000. Science goals include the study of the origins of large scale structure in the universe, the formation and evolution of galaxies, and the origin of stellar and planetary systems and the cold interstellar medium. COS was developed and built by the Center for Astrophysics and Space Astronomy (CASA-ARL) at the University of Colorado at Boulder and the Ball Aerospace and Technologies Corporation in Boulder, Colorado.

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

The Extreme Ultraviolet Explorer was a NASA space telescope for ultraviolet astronomy. EUVE was a part of NASA's Explorer spacecraft series. Launched on 7 June 1992. With instruments for ultraviolet (UV) radiation between wavelengths of 7 and 76 nm, the EUVE was the first satellite mission especially for the short-wave ultraviolet range. The satellite compiled an all-sky survey of 801 astronomical targets before being decommissioned on 31 January 2001.

<span class="mw-page-title-main">Special Sensor Ultraviolet Limb Imager</span>

The Special Sensor Ultraviolet Limb Imager (SSULI) is an imaging spectrometer that is used to observe the earth's ionosphere and thermosphere. These sensors provide vertical intensity profiles of airglow emissions in the extreme ultraviolet and far ultraviolet spectral range of 800 to 1700 Angstrom and scan from 75 km to 750 km tangent altitude. The data from these sensors will be used to infer altitude profiles of ion, electron and neutral density.

<span class="mw-page-title-main">Energetic neutral atom</span> Technology to create global images of otherwise invisible phenomena

Energetic Neutral Atom (ENA) imaging, often described as "seeing with atoms", is a technology used to create global images of otherwise invisible phenomena in the magnetospheres of planets and throughout the heliosphere.

<span class="mw-page-title-main">Interface Region Imaging Spectrograph</span> NASA satellite of the Explorer program

Interface Region Imaging Spectrograph (IRIS), also called Explorer 94 and SMEX-12, is a NASA solar observation satellite. The mission was funded through the Small Explorer program to investigate the physical conditions of the solar limb, particularly the interface region made up of the chromosphere and transition region. The spacecraft consists of a satellite bus and spectrometer built by the Lockheed Martin Solar and Astrophysics Laboratory (LMSAL), and a telescope provided by the Smithsonian Astrophysical Observatory (SAO). IRIS is operated by LMSAL and NASA's Ames Research Center.

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

Ionospheric Connection Explorer (ICON) is a satellite designed to investigate changes in the ionosphere of Earth, the dynamic region high in our atmosphere where terrestrial weather from below meets space weather from above. ICON studies the interaction between Earth's weather systems and space weather driven by the Sun, and how this interaction drives turbulence in the upper atmosphere. It is hoped that a better understanding of this dynamic will mitigate its effects on communications, GPS signals, and technology in general. It is part of NASA's Explorer program and is operated by University of California, Berkeley's Space Sciences Laboratory.

<span class="mw-page-title-main">Heliophysics Science Division</span>

The Heliophysics Science Division of the Goddard Space Flight Center (NASA) conducts research on the Sun, its extended Solar System environment, and interactions of Earth, other planets, small bodies, and interstellar gas with the heliosphere. Division research also encompasses geospace—Earth's uppermost atmosphere, the ionosphere, and the magnetosphere—and the changing environmental conditions throughout the coupled heliosphere.

<span class="mw-page-title-main">Student Nitric Oxide Explorer</span> NASA satellite of the Explorer program

Student Nitric Oxide Explorer, was a NASA small scientific satellite which studied the concentration of nitric oxide in the thermosphere. It was launched in 1998 as part of NASA's Explorer program. The satellite was the first of three missions developed within the Student Explorer Demonstration Initiative (STEDI) program funded by the NASA and managed by the Universities Space Research Association (USRA). STEDI was a pilot program to demonstrate that high-quality space science can be carried out with small, low-cost free-flying satellites on a time scale of two years from go-ahead to launch. The satellite was developed by the University of Colorado Boulder's Laboratory for Atmospheric and Space Physics (LASP) and had met its goals by the time its mission ended with reentry in December 2003.

UVS (<i>Juno</i>)

UVS, known as the Ultraviolet Spectrograph or Ultraviolet Imaging Spectrometer is the name of an instrument on the Juno orbiter for Jupiter. The instrument is an imaging spectrometer that observes the ultraviolet range of light wavelengths, which is shorter wavelengths than visible light but longer than X-rays. Specifically, it is focused on making remote observations of the aurora, detecting the emissions of gases such as hydrogen in the far-ultraviolet. UVS will observes light from as short a wavelength as 70 nm up to 200 nm, which is in the extreme and far ultraviolet range of light. The source of aurora emissions of Jupiter is one of the goals of the instrument. UVS is one of many instruments on Juno, but it is in particular designed to operate in conjunction with JADE, which observes high-energy particles. With both instruments operating together, both the UV emissions and high-energy particles at the same place and time can be synthesized. This supports the Goal of determining the source of the Jovian magnetic field. There has been a problem understanding the Jovian aurora, ever since Chandra determined X-rays were coming not from, as it was thought Io's orbit but from the polar regions. Every 45 minutes an X-ray hot-spot pulsates, corroborated by a similar previous detection in radio emissions by Galileo and Cassini spacecraft. One theory is that its related to the solar wind. The mystery is not that there are X-rays coming Jupiter, which has been known for decades, as detected by previous X-ray observatories, but rather why with the Chandra observation, that pulse was coming from the north polar region.

<span class="mw-page-title-main">Alice (spacecraft instrument)</span>

Alice is an ultraviolet imaging spectrometer for spacecraft, with one used on the New Horizons spacecraft, and another on the Rosetta spacecraft. Alice is a small telescope with a spectrograph and a special detector with 32 pixels each with 1024 spectral channels detecting ultraviolet light. The instrument has a mass of 4.4 kg and draws 4.4 watts of power. Its primary role is to determine the relative concentrations of various elements and isotopes in Pluto's atmosphere.

References

  1. 1 2 "Trajectory: CHIPS (Explorer 82) 2003-002B". NASA. 28 October 2021. Retrieved 3 December 2021.PD-icon.svg This article incorporates text from this source, which is in the public domain .
  2. Cosmic Hot Interstellar Plasma Spectrometer Archived 2013-11-21 at the Wayback Machine
  3. "Display: CHIPS (Explorer 82) 2003-002B". NASA. 28 October 2021. Retrieved 3 December 2021.PD-icon.svg This article incorporates text from this source, which is in the public domain .
  4. "CHIPS Latest News". Archived from the original on 18 August 2012. Retrieved 3 December 2021.
  5. CHIPS Solar Science Archive Archived 2011-08-13 at the Wayback Machine

Commons-logo.svg Media related to CHIPSat at Wikimedia Commons