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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.

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Satellite Launch Norad Incl.
degrees
Apogee
Km
Perigee
Km
Period
min
Options
Hubble199020580U28º53653395Tracking
POLAR199623802U79º4973484901109Tracking
SWAS199825560U70º59057696Tracking
CXO199925867U45º14581129853808Tracking
XMM-NEWTON199925989U70º100840202692872Tracking
TERRA199925994U98º70370199Tracking
CLUSTER II-FM7 (SAMBA)200026410U134º107821250663260Tracking
CLUSTER II-FM6 (SALSA)200026411U137º119775130263257Tracking
CLUSTER II-FM5 (RUMBA)200026463U140º116223165793257Tracking
CLUSTER II-FM8 (TANGO)200026464U134º107722250743256Tracking
ODIN200126702U98º54252995Tracking
TIMED200126998U74º60260297Tracking
RHESSI200227370U38º43742993Tracking
INTEGRAL200227540U76º14695025063831Tracking
CORIOLIS200327640U99º839817101Tracking
SORCE200327651U40º61558197Tracking
MOST200327843U99º831815101Tracking
SCISAT 1200327858U74º64363197Tracking
SWIFT200428485U21º55453996Tracking
CLOUDSAT200629107U98º68568298Tracking
CALIPSO200629108U98º68568298Tracking
HINODE (SOLAR-B)200629479U98º69166498Tracking
SJ-6C200629505U98º58357496Tracking
SJ-6D200629506U98º58858396Tracking
AGILE200731135U45944594Tracking
AIM200731304U98º51550995Tracking
FGRST (GLAST)200833053U26º53852195Tracking
WISE200936119U97º46546494Tracking
SDO201036395U32º35788357851436Tracking
CRYOSAT 2201036508U92º72371699Tracking
X-SAT201137389U98º820801101Tracking
GCOM-W1 (SHIZUKU)201238337U98º70370199Tracking
NUSTAR201238358U60859197Tracking
NEOSSAT201339089U98º784769100Tracking
BRITE-AUSTRIA201339091U98º781767100Tracking
IRIS201339197U98º65061397Tracking
HISAKI (SPRINT-A)201339253U30º1155951106Tracking
CASSIOPE201339265U81º1205319100Tracking
STSAT-3201339422U97º61158197Tracking
SWARM B201339451U88º50650295Tracking
SWARM A201339452U87º47046694Tracking
SWARM C201339453U87º47046694Tracking
BRITE-CA1 (TORONTO)201440020U98º73161098Tracking
OCO 2201440059U98º70470199Tracking
BRITE-PL2 (HEWELIUSZ)201440119U98º62560197Tracking
RESURS P2201440360U97º46244994Tracking
MMS 1201540482U32º17626963035063Tracking
MMS 2201540483U32º17628162925063Tracking
MMS 3201540484U32º17633363075065Tracking
MMS 4201540485U32º17627362995063Tracking
ASTROSAT201540930U64663498Tracking
DAMPE201541173U97º50248294Tracking
PISAT201641784U98º70465798Tracking
HXMT (HUIYAN)201742758U43º54052895Tracking
FLYING LAPTOP201742831U97º60158397Tracking
PICSAT201843132U97º47446694Tracking
ZHANGZHENG-1 (CSES)201843194U98º51249595Tracking
ICON201944628U27º60257696Tracking
SALSAT202046495U98º56454296Tracking
IXPE202149954U60158697Tracking
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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