JPSS-1
| JPSS-1 | |
|---|---|
|
|
| Type: | Environmental satellite |
| Country: |
 United States
|
| Operator: | NOAA |
| COSPAR-ID : | 2017-073A |
| Mission dates | |
| Dimensions: | 2,540 kg |
| Size: | 1.3 x 1.3 by 4.2 m |
| Begin: | November 18, 2017, 09:47 UTC |
| Starting place: | Vandenberg AFB , SLC-2W |
| Launcher: | Delta II 7920-10C |
| Status: | in orbit, active |
| Orbit data | |
| Rotation time : | 13.5 hours |
| Orbit inclination : | 98.7 ° |
| Apogee height : | 830 km |
| Perigee height : | 830 km |
JPSS-1 (also NOAA-20 ) is the first environmental satellite of the American National Oceanic and Atmospheric Administration from the JPSS program .
It was found on November 18, 2017 at 9:47 UTC with a Delta-2 launcher from Vandenberg Air Force Base together with the five small technology and earth observation satellites Eagle-Sat , MakerSat-0 , RadFxSat-1 , MiRaTA and Buccaneer Risk Mitigation mission put into polar orbit. 57 minutes and 30 seconds after take-off and after a total of two orbital maneuvers, the second stage put the satellite into orbit. 75 minutes after take-off, the second stage carried out a third orbit maneuver in order to reach the intended orbit for the small satellites. These were then suspended 81 minutes and 40 seconds after launch. After its commissioning, it received the designation NOAA-20, which identifies it as a member of the fleet of weather satellites in polar sun-synchronous orbits of the National Oceanic and Admospheric Administration (NOAA). The launch was actually planned for November 14, 2017, but was delayed due to problems with the launcher.
The three-axis stabilized satellite is very similar to the Suomi NPP satellite and is equipped with five main instruments and is intended to provide climate and weather data. The main instruments are CERES (Clouds and the Earth's Radiant Energy System), with which the earth's radiation budget is to be determined, the two atmospheric measuring devices CrIS and ATMS, with which the pressure, temperature and humidity profile of the earth's atmosphere is to be measured, and the OPMS (Ozone Mapping and Profiler Suite), which in turn consists of two hyperspectral cameras with which the ozone level in the troposphere is determined, and the Visible / Infrared Imager Radiometer Suite (VIIRS), with which images of the earth are to be recorded. JPSS-1 was built on the basis of Ball Aerospace's BCP-2000 satellite bus and has a planned service life of seven years. A number of industrial partners were involved in the JPSS project, with Ball Aerospace selected as prime contractor for JPSS-1 and Orbital ATK for the construction of the JPSS-2 satellite. The instruments housed on both spacecraft are built by Ball Aerospace, Raytheon , Exelis and Northrop Grumman . The contracts were signed in 2012.
Instruments
The CERES-FM6 installed on board is a three-channel radiometer (0.3–5 µm, 8–12 µm and 0.3 to> 50 µm) for determining the albedo and the total energy balance of the earth. It was developed by Northrop Grumman and has a resolution of 20 km. The VIIRS (Visible / Infrared Imager Radiometer Suite) supplied by Raytheon is a 22-channel radiometer (412 nm to 12 µm) that works in the visible and infrared range, images of the earth with a resolution of 400 m and a swath width of up to 3000 km delivers. CrIS (Cross-track Infrared Sounder) is a Michelson interferometer for measuring the temperature and moisture concentration of the earth's atmosphere. It delivers data in 1305 spectral channels in the range from 3.92 µm to 15.38 µm (159 in the infrared range from 3.92 to 4.64 µm; 433 in the mid-infrared range from 5.71 to 8.26 µm and 713 channels in the long-wave Infrared range from 9.14 to 15.38 µm with spectral resolutions of 9, 6 and 4.5 nanometers) in a range of 14 km each with an altitude resolution of 1 km and a scannable width of 2200 km. The ATMS (Advanced Technology Microwave Sounder) supplied by Northrop Grumman is a passive 22-channel radiometer working in the microwave range (23 to 183 GHz) for measuring temperature and humidity profiles of the earth's atmosphere with a resolution between 5.8 and 74 , 8 km and a swath width of about 2600 km. OPMS (Ozone Mapping and Profiler Suite) is a measuring device for determining the ozone concentration that was built by Ball Aerospace. It consists of two spectrometers: One records an arc with a width of 2800 km along the direction of flight in the spectral range from 300 to 380 nm with a spectral resolution of 0.45 nm and a local resolution of 50 km. The other spectrometer provides data in the spectral range from 250 to 310 nm directly below JPSS-1 from a range of 250x250 km. It thus has a much lower resolution, but is more sensitive to light.
Web links
Individual evidence
- ↑ a b c Spaceflight 101: JPSS-1 , accessed December 16, 2017
- ↑ a b der-orion.com: Delta 2 - An era is drawing to a close , accessed on December 16, 2017
- ↑ Spaceflight101: Nighttime Delta II Launch Attempt Halted by Technical Issue & Fouled Range - JPSS-1 | Spaceflight101 , accessed December 16, 2017
- ↑ a b Joint Polar Satellite System: Joint Polar Satellite System , accessed December 16, 2017