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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
Hubble199020580U2852552295Tracking
POLAR199623802U794963285921109Tracking
SWAS199825560U7058156896Tracking
CXO199925867U3714746213473808Tracking
XMM-NEWTON199925989U6996885242272872Tracking
TERRA199925994U9869869399Tracking
CLUSTER II-FM7 (SAMBA)200026410U137115851170003258Tracking
CLUSTER II-FM6 (SALSA)200026411U14312807147803258Tracking
CLUSTER II-FM5 (RUMBA)200026463U14612438184293257Tracking
CLUSTER II-FM8 (TANGO)200026464U137115784170083256Tracking
ODIN200126702U9852551095Tracking
TIMED200126998U7459959697Tracking
INTEGRAL200227540U8614564838763834Tracking
CORIOLIS200327640U99838818101Tracking
SORCE200327651U4060357696Tracking
MOST200327843U99829816101Tracking
SCISAT 1200327858U7464162897Tracking
SWIFT200428485U2153552295Tracking
CLOUDSAT200629107U9868067898Tracking
CALIPSO200629108U9868067898Tracking
HINODE (SOLAR-B)200629479U9868766298Tracking
SJ-6C200629505U9857156496Tracking
SJ-6D200629506U9858357796Tracking
AGILE200731135U238637792Tracking
FGRST (GLAST)200833053U2653051495Tracking
WISE200936119U9743242793Tracking
SDO201036395U3335793357781436Tracking
CRYOSAT 2201036508U9272471599Tracking
X-SAT201137389U98820799101Tracking
GCOM-W1 (SHIZUKU)201238337U9870370199Tracking
NUSTAR201238358U659758196Tracking
NEOSSAT201339089U98783768100Tracking
BRITE-AUSTRIA201339091U98780766100Tracking
IRIS201339197U9864560997Tracking
HISAKI (SPRINT-A)201339253U301154951106Tracking
CASSIOPE201339265U81110131499Tracking
STSAT-3201339422U9760557496Tracking
SWARM B201339451U8849749295Tracking
SWARM A201339452U8748347994Tracking
SWARM C201339453U8748348094Tracking
BRITE-CA1 (TORONTO)201440020U9872660798Tracking
OCO 2201440059U9870370199Tracking
BRITE-PL2 (HEWELIUSZ)201440119U9861959597Tracking
RESURS P2201440360U9743242293Tracking
MMS 1201540482U3218086812915046Tracking
MMS 2201540483U3218089012735047Tracking
MMS 3201540484U3218087112925047Tracking
MMS 4201540485U3218086912895046Tracking
ASTROSAT201540930U664263097Tracking
DAMPE201541173U9749747994Tracking
PISAT201641784U9870065498Tracking
HXMT (HUIYAN)201742758U4353052395Tracking
FLYING LAPTOP201742831U9759557996Tracking
PICSAT201843132U9726725690Tracking
ZHANGZHENG-1 (CSES)201843194U9850549795Tracking
SALSAT202046495U9855152895Tracking
IXPE202149954U059057696Tracking
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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