SentinelMission.org at the Wayback Machine (archived 8 October 2015)
Mission duration
≤10 years (planned)
Spacecraft properties
Manufacturer
Ball Aerospace
Launch mass
1,500 kg (3,300 lb)
Start of mission
Launch date
Cancelled
Rocket
Falcon 9
Orbital parameters
Reference system
Heliocentric
Main
Wavelengths
7–15 μm
Instruments
IRAC IRS
The Sentinel Space Telescope was[1] a space observatory to be developed by Ball Aerospace & Technologies for the B612 Foundation.[2][3] The B612 Foundation is dedicated to protecting the Earth from dangerous asteroid strikes and Sentinel was to be the Foundation's first spacecraft tangibly to address that mission.
The space telescope was intended to locate and catalog 90% of the asteroids greater than 140 metres (460 ft) in diameter that exist in near-Earth orbits. The telescope would have orbited the Sun in a Venus-like orbit (i.e. between Earth and the Sun). This orbit would allow it clearly to view the night half of the sky every 20 days, and pick out objects that are often difficult, if not impossible, to see in advance from Earth."[4] Sentinel would have had an operational mission life of six and a half to ten years.[5]
After NASA terminated their funding agreement with the B612 Foundation in October 2015[6] and the private fundraising goals could not be met, the Foundation eventually opted for an alternative approach using a constellation of much smaller spacecraft under study as of June 2017[update].[1] NASA/JPL's NEOCam has been proposed instead.
^ ab"B612 studying smallsat missions to search for near Earth objects". 20 June 2017.
^"The Foundation". B612 Foundation. Archived from the original on April 6, 2012. Retrieved September 13, 2012.
^Cite error: The named reference ball2013 was invoked but never defined (see the help page).
^Cite error: The named reference aw20130409 was invoked but never defined (see the help page).
^"The Sentinel Mission". B612 Foundation. Archived from the original on September 10, 2012. Retrieved September 13, 2012.
^"B612 Presses Ahead with Asteroid Mission Despite Setbacks". 20 October 2015.
and 25 Related for: Sentinel Space Telescope information
The SentinelSpaceTelescope was a space observatory to be developed by Ball Aerospace & Technologies for the B612 Foundation. The B612 Foundation is dedicated...
satellites Sentinel (spacetelescope), a proposed (but cancelled) asteroid-hunting infrared telescope by the B612 Foundation Animal sentinels, animals which...
The Space Surveillance Telescope (SST) is a Southern Hemisphere-based U.S. Space Force telescope used for detecting, tracking, and cataloguing satellites...
design and build a privately financed asteroid-finding space observatory, the SentinelSpaceTelescope, to be launched in 2017–2018. Once stationed in a heliocentric...
Colorado in the Space Science Department. Formerly he worked at the Lowell Observatory in Flagstaff, Arizona, and was the SentinelSpaceTelescope Mission Scientist...
astrophysics topics, such as the Big Bang, through the James Webb SpaceTelescope, the Great Observatories and associated programs. The Launch Services...
Camera (NEOCam), then NEO Surveillance Mission, is a planned space-based infrared telescope designed to survey the Solar System for potentially hazardous...
Einstein Probe (EP) is an X-ray spacetelescope mission by Chinese Academy of Sciences (CAS) in partnership with European Space Agency (ESA) and the Max Planck...
"Next-Generation SpaceTelescope Chosen to Peer Into Past". The New York Times. Retrieved 22 October 2023. NASA chose a successor to the Hubble SpaceTelescope today...
European Space Agency and NASA. Notably, SRON has cooperated with the German Aerospace Center (DLR), contributed to the James Webb SpaceTelescope program...
The Solar Sentinels was a series of proposed space missions to the Sun. Solar Sentinels was proposed in 2006 in conjunction with other Sun missions, and...
Hubble SpaceTelescope were all jointly carried out with NASA. Later scientific missions in cooperation with NASA include the Cassini–Huygens space probe...
(85 ft) Harvard/Smithsonian radio telescope at Oak Ridge Observatory in Harvard, Massachusetts. This project was named "Sentinel" and continued into 1985. Even...
Starlink Pose a Space Debris Threat? An Expert Answers. Archived 17 November 2020 at the Wayback Machine Jan Hattenbach, Sky & Telescope, 3 June 2019. "Starlink...
Herschel Telescope on La Palma The Herschel Space Observatory, successfully launched by the European Space Agency on 14 May 2009. It was the largest space telescope...
were close enough to the flight path of New Horizons. Only the Hubble SpaceTelescope was deemed likely to find a suitable target in time for a successful...
privately financed asteroid-finding spacetelescope, Sentinel, to be launched in 2017–2018. The Sentinel's infrared telescope, once parked in an orbit similar...
aging Hubble SpaceTelescope. The mission was a success and all its objectives were met. In 2000, Ham was promoted into a position in the Space Shuttle Program...
(LEIA) (also known as EP-WXT-pathfinder) is a wide-field X-ray imaging spacetelescope built by Chinese Academy of Sciences (CAS). It was launched on July...
Probe (WMAP) Imaging X-ray Polarimetry Explorer (IXPE) BioSentinel Nancy Grace Roman SpaceTelescope, launching May 2027, future Pioneer program Pioneer 6...
termination of involvement with the B612 Foundation's SentinelSpaceTelescope, an infrared space observatory focused on discovering a number of new Near-Earth...
solar-observing spacecraft, the Hubble SpaceTelescope Orbital Systems Test Platform, and investigations on space flight and the aging process. The mission...
Webb SpaceTelescope, a powerful infrared space observatory, is located at L2. This allows the satellite's large sunshield to protect the telescope from...
CNES-led spacetelescope mission to search for rocky exoplanets and perform asteroseismology studies. COS-B, launched August 1975 – Gamma-ray space observatory...
Global Information