Engineering:GOES 15
The GOES-15 satellite during pre-launch processing. | |
Names | GOES-P GOES-15 (before September 22, 2023) |
---|---|
Mission type | Weather satellite |
Operator | NOAA / NASA |
COSPAR ID | 2010-008A |
SATCAT no. | 36411 |
Mission duration | 10 years (planned) Elapsed: 14 years, 4 months, 14 days |
Spacecraft properties | |
Spacecraft type | GOES-N series |
Bus | BSS-601 |
Manufacturer | Boeing ITT Corporation |
Power | 2.3 kilowatts from solar array |
Start of mission | |
Launch date | 4 March 2010, 23:57 | UTC
Rocket | Delta IV-M+(4,2) |
Launch site | Cape Canaveral Air Force Station , SLC-37B |
Contractor | United Launch Alliance |
Orbital parameters | |
Reference system | Geocentric |
Regime | Geostationary |
Longitude | 128° West |
Slot | GOES-West |
Semi-major axis | 42,166 kilometres (26,201 mi) |
Perigee altitude | 35,791.0 kilometres (22,239.5 mi) |
Apogee altitude | 35,800.4 kilometres (22,245.3 mi) |
Inclination | 0.2° |
Period | 1,436.2 minutes |
EWS-G2 (Electro-optical Infrared Weather System Geostationary)[1] is a weather satellite of the U.S. Space Force, formerly GOES-15 (also known as GOES-P before becoming operational). The spacecraft was constructed by Boeing, and is the last of three GOES satellites to be based on the BSS-601 bus. It was launched in 2010, while the other BSS-601 GOES satellites—GOES-13 and GOES-14—were launched in May 2006 and June 2009 respectively.[2] It was the sixteenth GOES satellite to be launched.
Launch
GOES-15 was launched atop a Delta IV-M+(4,2) rocket flying from Space Launch Complex 37B at the Cape Canaveral Air Force Station .[3][4] The launch occurred at 23:57 UTC on 4 March 2010, forty minutes into a sixty-minute launch window. Upon reaching geostationary orbit on 16 March, it was redesignated GOES-15.[4][5] On 6 December 2011, it was activated as the GOES-West satellite, replacing GOES-11.[6]
Design
At launch, the mass of the satellite was 3,238 kilograms (7,139 lb). It has a design life of ten years. Power is supplied by a single gallium arsenide solar panel, which provides up to 2.3 kilowatts of power. A 24 cell nickel hydrogen battery is used to provide power when the satellite is not in sunlight.[7] Instruments aboard GOES-15 include a five channel multispectral imager to capture visible light and infrared images of the continental United States, a sounder to take readings of atmospheric temperature and moisture, a solar x-ray imager to detect solar flares, and instruments to monitor the magnetosphere, cosmic background radiation and charged particles.[7]
Operations
NOAA began to transition GOES-15 out of operational status at the GOES-West position in late 2018 to replace it with GOES-17.[8][9] GOES-15 began an eastward drift maneuver on 29 October 2018 to 128° W, with all of its sensors still functioning.[9] GOES-15's drift is intended to provide additional separation from GOES-17 to prevent communication interference. GOES-15 drifted east at a rate of 0.88° per day until 7 November 2018, when it reached its new operating location of 128° West. Once GOES-17 reached its assigned longitude on 13 November 2018, additional tests were performed; provided that testing goes well, GOES-17 will become operational as GOES-West on 10 December 2018.[9] Both GOES-17 and GOES-15 operated in tandem through early 2020 to allow for assessment of the performance of GOES-17 as the GOES-West operational satellite.[9] On March 2, 2020, GOES-15 was deactivated and moved to a storage orbit, with plans to re-activate it in August 2020 to back up GOES-17 operations due to a known flaw causing many sensors to become unreliable at night during certain times of the year.[10][11] On 22 September 2023 the satellite's ownership was officially transferred to the U.S. Space Force, taking its current designation as part of the EWS-G network. As a consequence, the spacecraft has started drifting over the Indian Ocean to reach its new assigned orbit and it's scheduled to become operational in November 2023.[1]
Media
References
- ↑ 1.0 1.1 "Space Force accepts second weather satellite through NOAA partnership". U.S. Space Force. 22 September 2023. https://www.spaceforce.mil/News/Article-Display/Article/3534522/space-force-accepts-second-weather-satellite-through-noaa-partnership/.
- ↑ Krebs, Gunter. "GOES N, O, P, Q". Gunter's Space Page. http://space.skyrocket.de/doc_sdat/goes-n.htm.
- ↑ "GOES-P Launch Blog". NASA. http://www.nasa.gov/mission_pages/GOES-P/main/index.html.
- ↑ 4.0 4.1 Ray, Justin. "Mission Status Center". Delta Launch Report. Spaceflight Now. http://www.spaceflightnow.com/delta/d348/status.html.
- ↑ "LIVE: Delta IV set to launch GOES-P weather satellite". NASAspaceflight.com. 4 March 2010. http://www.nasaspaceflight.com/2010/03/live-delta-iv-launch-goes-p-satellite/.
- ↑ "NOAA activates GOES-15 satellite; deactivates GOES-11 after nearly 12 years in orbit". NOAA. http://www.noaanews.noaa.gov/stories2011/20111206_goessatellite.html.
- ↑ 7.0 7.1 "GOES-P Mission Operations Booklet". United Launch Alliance. http://www.ulalaunch.com/site/docs/missionbooklets/DIV/div_goesp_mob.pdf.
- ↑ "Get Ready to Drift: GOES-17 Begins Move to Its New Operational Position | NOAA National Environmental Satellite, Data, and Information Service (NESDIS)". www.nesdis.noaa.gov. https://www.nesdis.noaa.gov/content/get-ready-drift-goes-17-begins-move-its-new-operational-position.
- ↑ 9.0 9.1 9.2 9.3 "GOES-17 Transition to Operations │ GOES-R Series" (in en). https://www.goes-r.gov/users/transitionToOperations17.html.
- ↑ "GOES-16/17 Transition". NOAA. 2020-02-19. https://www.ospo.noaa.gov/Operations/GOES/16/transition.html.
- ↑ "GOES-15 is no longer sending data". CIMSS. 2020-03-02. https://cimss.ssec.wisc.edu/satellite-blog/archives/35844.
External links
- GOES-P Press Kit
- GOES Timeline The History of Geostationary Satellites. From the launch of SMS-1 in May 1974 through the launch of GOES-13.
- GOES-15 image examples on the CIMSS Satellite Blog
Original source: https://en.wikipedia.org/wiki/GOES 15.
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