Here you will find information on active sensors for radio astronomers in order to help protect radio astronomy receivers from damaging interference.
Resolution SFCG 24-2 (PDF, 160 KB), orbital information on the Cloudsat Mission utlizing the 94.0-94.1 GHz allocation can be found on the
Cloudsat website. This includes both Cloudsat
orbital elements and
NOTE:The Cloudsat mission is still operational but is only operated during the sunlit portion of the orbit due to battery issues. It is expected to be operational into sometime in 2021.
Cloudsat orbital elements and orbital predictions will continue to be available on the Cloudsat website.
NORAD Two-Line Element (TLE) ephermeris data for Earth orbiting objects can be found
here. Satellite tracking software is also
The Committee on Earth Observation Satellites (CEOS) maintains an on-line version of its Earth Observation Handbook. This
Handbook contains useful information on all Earth observation satellites currently operating.
The International Telecommunications Union - Radiocommunications Sector (ITU-R) maintains a database of all space systems (i.e., satellites) registered with the ITU. The Space Network Systems (SNS) database contains all technical information available in ITU filings for such systems.
|Sentinel-1A and -1B(2 satellites active at 180 degrees orbital separation) (SAR)||ESA||Sentinel-1||5405||Up to 100 (mode dependent)||5200||39634 and 41456|
|ALOS-2 PALSAR-2||JAXA||ALOS-2||1240, 1260, 1280||42/84.2/42.2||6120||39766|
|RADARSAT-2 SAR||CSA||RADARSAT-2C RADARSAT-2D RADARSAT-2E RADARSAT-2F||5300||11.6, 17.3, 30, 50, 100||5000||32382|
|COSMO-SkyMed 1/2/3/4 (SAR)||ASI||COSMO SKYMED||9600||41 to 400||2800||31598/32376/33412/37216|
|TerraSAR-X SAR/TANDEM-X SAR||DLR||TERRASAR||9650||150, 300||2260||31698/36605|
|GPM DPR (Precipitation Radar)||JAXA||GPM||13600, 35550||3.36 x 2 ||1000, 150||39574|
|RISAT-1/-2 (SAR)||ISRO||RISAT||5250-5475||18.75 to 75||4000||38248/34807|
This table is also available in
MS-Word format. Additional information on the
Metop sensors is also available. At SFCG-31, document
SF31-9DR1 on "Potential Damage to RAS Sites by EESS (active) Systems" was presented by NASA providing calculations of the power levels received vis-à-vis power levels given in Report ITU-R RA.2188. At SFCG-36, a new Action Item was adopted to further refine this work.
This page last updated on 28-May-19 at 13:15 ET