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Scientific Satellites
Below follows the information found in the database of scientific satellites. They are satellites placed in orbit in order to study the high-atmosphere, effects of cosmic radiation or specific natural resources. In this category also are the telescopes and space observatories.
Satellite Launch Norad Incl.
degrees
Apogee
Km
Perigee
Km
Period
min
Options
Hubble199020580U2853953595Tracking
POLAR199623802U795034178831109Tracking
SWAS199825560U7058958196Tracking
CXO199925867U5414226265653809Tracking
XMM-NEWTON199925989U71104128169782872Tracking
TERRA199925994U9870370199Tracking
CLUSTER II-FM7 (SAMBA)200026410U133102744300423256Tracking
CLUSTER II-FM6 (SALSA)200026411U134113812189793256Tracking
CLUSTER II-FM5 (RUMBA)200026463U138110545222473256Tracking
CLUSTER II-FM8 (TANGO)200026464U133102751300423256Tracking
ODIN200126702U9854753495Tracking
TIMED200126998U7460460297Tracking
RHESSI200227370U3846645394Tracking
INTEGRAL200227540U6514770317733832Tracking
CORIOLIS200327640U99838819101Tracking
SORCE200327651U4061558597Tracking
MOST200327843U99830816101Tracking
SCISAT 1200327858U7464463297Tracking
SWIFT200428485U2155954496Tracking
FORMOSAT-3 FM6200629047U72831760101Tracking
FORMOSAT-3 FM1200629048U72826765101Tracking
FORMOSAT-3 FM5200629049U72820771101Tracking
FORMOSAT-3 FM3200629050U7273365999Tracking
FORMOSAT-3 FM4200629051U72845745101Tracking
FORMOSAT-3 FM2200629052U72824766101Tracking
CLOUDSAT200629107U9868567998Tracking
CALIPSO200629108U9868668498Tracking
HINODE (SOLAR-B)200629479U9869266498Tracking
SJ-6C200629505U9858657796Tracking
SJ-6D200629506U9858858596Tracking
AGILE200731135U247245794Tracking
AIM200731304U9852651895Tracking
FGRST (GLAST)200833053U2654052395Tracking
WISE200936119U9747547094Tracking
SDO201036395U3135790357841436Tracking
CRYOSAT 2201036508U9272271799Tracking
X-SAT201137389U98821800101Tracking
GCOM-W1 (SHIZUKU)201238337U9870470199Tracking
NUSTAR201238358U661059497Tracking
NEOSSAT201339089U98785768100Tracking
IRIS201339197U9865261497Tracking
HISAKI (SPRINT-A)201339253U301155951106Tracking
CASSIOPE201339265U811247319101Tracking
STSAT-3201339422U9761358397Tracking
SWARM B201339451U8850249795Tracking
SWARM A201339452U8743142793Tracking
SWARM C201339453U8743142793Tracking
BRITE-CA1 (TORONTO)201440020U9873361098Tracking
OCO 2201440059U9870370199Tracking
BRITE-PL2 (HEWELIUSZ)201440119U9862660397Tracking
RESURS P2201440360U9747045694Tracking
MMS 1201540482U3417374287875061Tracking
MMS 2201540483U3417371988105061Tracking
MMS 3201540484U3417369788585062Tracking
MMS 4201540485U3417373187985061Tracking
ASTROSAT201540930U664763498Tracking
DAMPE201541173U9750248594Tracking
PISAT201641784U9870565898Tracking
HXMT (HUIYAN)201742758U4354453395Tracking
FLYING LAPTOP201742831U9760358497Tracking
PICSAT201843132U9749548194Tracking
ZHANGZHENG-1 (CSES)201843194U9751349395Tracking
ICON201944628U2760557897Tracking
SALSAT202046495U9856754596Tracking
Satellites Orbital Parameters

The table above shows the main parameters and information available for this satellite.

Satellite: This column shows the name of the object in orbit. In some cases the official name ends with the words R/B, meaning that it is a piece or any stage from some rocket booster.

Norad: North American Aerospace Defense Command, the Air Defence Command of the United States, responsible for the catalogue of objects in orbit. The number indicates the record of the satellite in the Norad archives.

Inclination: Angle formed between the orbit of the satellite and terrestrial line of the equator. Satellites with inclination of 0 degrees follow the equator line and are called equatorial orbit satellites. When the inclination is 90 degrees its orbit crosses the terrestrial poles and are called polar orbiting satellites. When the inclination is less or equal latitude of the place of observation, the satellite be seen directly if conditions permit.

Apogee: Maximum distance that the object is far from the center of the Earth.

Perigee: Highest approchement between the object and the center of the Earth. The figures shown already discounting the radius of the Earth, 6378 Km. One Perigee value equal to the value of Apogee indicates a circular orbit satellite.

Period: Value in minutes that a satellite takes to complete one orbit of perigee to perigee. Satellites in polar orbit, positioned at 800 km in altitude will take approximately 102 minutes to complete one revolution. The International Space Station, 350 km above the surface, completes its orbit in 90 minutes.

The lower the altitude of a satellite, more speed he needs to keep in orbit and not re-enters the atmosphere.

Geostationary satellites have a period of approximately 1436 minutes with inclination of 0 degrees (equatorial orbit). Because this is the same time it takes Earth to complete one turn on its axis, geostationary satellites appear static on the same geographic point. To this happens the satellite should be positioned about 36 thousand kilometers in altitude.

Note and Frequency: Filled with additional information where possible. The frequencies shown, when provided, are those captured by enthusiasts or informed by the official organizations of disclosure.

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