James Webb Space Telescope timeline
The first six primary mirror segments being prepared for final cryogenic acceptance testing, 2011
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The 18 main mirror segments for JWST in special shipping cans, 2012
Backplane being transported to California, 2013
Vacuum Chamber A prepared for JWST, 2014
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Main mirror assembled, May 2016
This page lists selected events from the chronology of the James Webb Space Telescope, a planned international 21st century space observatory. It is intended to be a premier observatory of the 2020s, combining the largest mirror yet on a near-infrared space telescope with a suite of technologically advanced instruments from around the world.[1] JWST is expected to cost 8.8 billion dollars, including design, construction, and 5 years of operations (does not include extended mission funding) or International contributions.[2] Its peak year for funding was probably 2014, when the project cost around $650 million USD at that time.[2]
Is designed to last at least 5 and half years (6 months calibration + 5 years science operations), but with a goal of 10 years.[3] The limiting factor is expected to be fuel to maintain its halo orbit, of which there is enough for at least ten years.[3]
Timeline
- 1996: Next Generation Space Telescope initiated[4]
- 2000: NEXUS cancelled (JWST technology demo)[5][6]
- 2002: $824.8 million prime contract for NGST awarded to TRW.[7]
- September 2002: NGST named James Webb Space Telescope [4][1]
- January 2007, 9/10 technology development items pass non-advocate review.[8]
- April 2010, technical part of Mission Critical Design Review (MCDR) passes.[9]
- July 2011, James Webb project threatened with cancellation.[10][11][12][13]
- November 2011, JWST survives cancellation attempt.[14]
- 2012, MIRI instrument hand-off.[15]
- March 2013; FGS/NIRISS installed in ISIM.[16]
- July 4, 2013; MIRI installed in ISIM.[17]
- March 2014, NIRCam installed in ISIM [18]
- March 24–25, 2014, NIRSpec integrated into ISIM.[19]
- June 2014, first combined test of all four instruments including cryogenic testing in the Goddard Space Environment Simulator.[20]
- 2014, peak U.S. funding hit with $650 million USD this year.[2]
- February 2016, hexagonal segments of the primary mirror completed.[21]
- December 2015, contract for JWST's launcher signed.[22]
- March 2016, cryogenic testing of instruments and mirrors completed.[23]
- March 3, 2016, secondary mirror installed on OTE[24]
- March 2016, Aft Optics Subsystem installed on OTE.[25]
- November 2016 JWST construction completed (still needs testing, etc.)[26]
- January 2017 JWST is fine after experiencing an anomaly during vibration testing in Dec 2016.[27]
Planned
- 2016 OTE tests complete
- 2017 OTIS tests complete
- 2017 Spacecraft (inc sunshield) tests complete
- 2018 Observatory I&T complete
- October 2018 planned launch as of 2016.[1]
After-launch plan
- After launch it is unfolded in the following planned order.[28]
- 1) spacecraft appendages (solar arrays, high gain antenna)
- 2) sunshield
- 3) extend tower
- 4) secondary mirror
- 5) primary mirror
- For 30 days after launch it takes a million mile trip to L2 halo orbit[29]
- For 6 months JWST is prepared for full-time science operation.[30] This includes letting everything cool down, calibrating the mirrors and instruments, etc.[30]
- 5 year science mission starts after 6 months (planned)[30] (so 5 and half years minimum planned)
- 10 years of operation goal, and enough fuel to maintain halo orbit for at least ten years is included.[3]
I&T schedule summary
_Schedule_for_the_James_Webb_Space_Telescope_Elements_(15427748904).jpg)
I&T schedule (Dec 2014)
After-launch deployment
JWST post-launch deployment timeline[31]
Nearly a month after launch, a trajectory correction will be initiated to place the JWST into a halo orbit at L2.[32]
References
- 1 2 3 "The James Webb Space Telescope". Explore James Webb Space Telescope. NASA. Retrieved 3 December 2016.
- 1 2 3 Manufacturing Issues Plague James Webb Space Telescope. Nov 2014
- 1 2 3 JWST FAQ
- 1 2 "About James Webb". NASA. Retrieved 15 March 2013.
- ↑ "Nexus Space Telescope". MIT.
- ↑ Multidisciplinary Analysis of the NEXUS Precursor Space Telescope
- ↑ "TRW Selected as JWST Prime Contractor". STCI. 11 September 2003. Retrieved 13 January 2012.
- ↑ "JWST Passes NTAR". STScI. Retrieved 5 July 2008.
- ↑ "NASA's Webb Telescope Passes Key Mission Design Review Milestone". NASA. Retrieved 2 May 2010.
- ↑ McKie, Robin (9 July 2011). "Nasa fights to save the James Webb space telescope from the axe". London: The Guardian.
- ↑ "Appropriations Committee Releases the Fiscal Year 2012 Commerce, Justice, Science Appropriations". US House of representatives Committee on Appropriations. 6 July 2011.
- ↑ "US lawmakers vote to kill Hubble successor". SpaceDaily. 7 July 2011.
- ↑ "Proposed NASA Budget Bill Would Cancel Major Space Telescope". Space.com. 6 July 2011.
- ↑ "NASA budget plan saves telescope, cuts space taxis". Reuters. 16 November 2011.
- ↑
- ↑
- ↑
- ↑
- ↑
- ↑
- ↑ "NASA's James Webb Space Telescope Primary Mirror Fully Assembled". NASA.gov. 3 Feb 2016. Retrieved 4 Feb 2016.
- ↑
- ↑
- ↑
- ↑ "GMS: JWST Aft-Optics System (AOS) Installed at GSFC". Retrieved 5 December 2016.
- ↑ Nasa begins testing enormous space telescope made of gold mirrors
- ↑
- ↑
- ↑
- 1 2 3 http://jwst.nasa.gov/orbit.html
- ↑
- ↑ "James Webb Space Telescope - The First 30 Days After Launch". News Ledge. 2017-03-03. Retrieved 2017-05-30.
External links
- JWST recent accomplishments
- JWST History (stsci)
- JWST Science planning timeline (.pdf)
- Live "Webb Cam" (sic) of clean room at Godard
| Instruments/sensors |
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| Elements | ||
| Related articles |
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