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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
Hubble199020580U28º54053695Tracking
POLAR199623802U79º5103771871109Tracking
SWAS199825560U70º58958296Tracking
CXO199925867U60º13905597813809Tracking
XMM-NEWTON199925989U71º106635144712872Tracking
TERRA199925994U98º70370299Tracking
CLUSTER II-FM7 (SAMBA)200026410U132º99867329263256Tracking
CLUSTER II-FM6 (SALSA)200026411U132º109927228663256Tracking
CLUSTER II-FM5 (RUMBA)200026463U136º106917258763256Tracking
CLUSTER II-FM8 (TANGO)200026464U132º99857329363256Tracking
ODIN200126702U98º55053395Tracking
TIMED200126998U74º60560297Tracking
RHESSI200227370U38º47445694Tracking
INTEGRAL200227540U58º14769918023833Tracking
CORIOLIS200327640U99º838819101Tracking
SORCE200327651U40º61558697Tracking
MOST200327843U99º830816101Tracking
SCISAT 1200327858U74º64363397Tracking
SWIFT200428485U21º56054596Tracking
FORMOSAT-3 FM6200629047U72º831760101Tracking
FORMOSAT-3 FM1200629048U72º826766101Tracking
FORMOSAT-3 FM5200629049U72º820772101Tracking
FORMOSAT-3 FM3200629050U72º73166299Tracking
FORMOSAT-3 FM4200629051U72º845747101Tracking
FORMOSAT-3 FM2200629052U72º823768101Tracking
CLOUDSAT200629107U98º68668598Tracking
CALIPSO200629108U98º68668498Tracking
HINODE (SOLAR-B)200629479U98º68866598Tracking
SJ-6C200629505U98º58558096Tracking
SJ-6D200629506U98º58758696Tracking
AGILE200731135U2º47645994Tracking
AIM200731304U98º52852195Tracking
FGRST (GLAST)200833053U26º54152395Tracking
WISE200936119U97º47747294Tracking
SDO201036395U31º35787357851436Tracking
CRYOSAT 2201036508U92º72471499Tracking
X-SAT201137389U98º821800101Tracking
GCOM-W1 (SHIZUKU)201238337U98º70470199Tracking
NUSTAR201238358U6º61159597Tracking
NEOSSAT201339089U98º785768100Tracking
IRIS201339197U98º65361397Tracking
HISAKI (SPRINT-A)201339253U30º1155951106Tracking
CASSIOPE201339265U81º1260320101Tracking
STSAT-3201339422U97º61558297Tracking
SWARM B201339451U88º50249995Tracking
SWARM A201339452U87º43442993Tracking
SWARM C201339453U87º43442993Tracking
BRITE-CA1 (TORONTO)201440020U98º73261198Tracking
OCO 2201440059U98º70470199Tracking
BRITE-PL2 (HEWELIUSZ)201440119U98º62660497Tracking
RESURS P2201440360U97º47045994Tracking
MMS 1201540482U32º17400380955044Tracking
MMS 2201540483U32º17399681025044Tracking
MMS 3201540484U32º17397080895043Tracking
MMS 4201540485U32º17400980895044Tracking
ASTROSAT201540930U6º64763598Tracking
DAMPE201541173U97º50448494Tracking
PISAT201641784U98º70565998Tracking
HXMT (HUIYAN)201742758U43º54753195Tracking
FLYING LAPTOP201742831U97º60558397Tracking
PICSAT201843132U97º49748594Tracking
ZHANGZHENG-1 (CSES)201843194U97º51149595Tracking
ICON201944628U27º60557997Tracking
SALSAT202046495U98º57054496Tracking
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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