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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
AKEBONO (EXOS-D)198919822U75º3373259123Tracking
Hubble199020580U28º54253895Tracking
POLAR199623802U78º5513230941109Tracking
SWAS199825560U70º59158496Tracking
ORSTED199925635U96º83263299Tracking
CXO199925867U74º129458193723809Tracking
XMM-NEWTON199925989U69º11528258192872Tracking
TERRA199925994U98º70370299Tracking
CLUSTER II-FM6 (SALSA)200026410U131º98311344833256Tracking
CLUSTER II-FM7 (SAMBA)200026411U130º103107296143254Tracking
CLUSTER II-FM5 (RUMBA)200026463U134º100983317593255Tracking
CLUSTER II-FM8 (TANGO)200026464U131º98349344493257Tracking
ODIN200126702U98º55253796Tracking
TIMED200126998U74º60660397Tracking
RHESSI200227370U38º48747294Tracking
INTEGRAL200227540U50º14205573693830Tracking
CORIOLIS200327640U99º840818101Tracking
SORCE200327651U40º61958597Tracking
MOST200327843U99º830816101Tracking
SCISAT 1200327858U74º64463397Tracking
SWIFT200428485U21º56354796Tracking
FORMOSAT-3 FM6200629047U72º832761101Tracking
FORMOSAT-3 FM1200629048U72º828765101Tracking
FORMOSAT-3 FM5200629049U72º821772101Tracking
FORMOSAT-3 FM3200629050U72º73366399Tracking
FORMOSAT-3 FM4200629051U72º846746101Tracking
FORMOSAT-3 FM2200629052U72º825767101Tracking
CLOUDSAT200629107U98º70370299Tracking
CALIPSO200629108U98º70370199Tracking
HINODE (SOLAR-B)200629479U98º69066598Tracking
SJ-6C200629505U98º58558396Tracking
SJ-6D200629506U98º58958796Tracking
AGILE200731135U2º48546794Tracking
AIM200731304U98º53252795Tracking
FGRST (GLAST)200833053U26º54252595Tracking
WISE200936119U97º48447794Tracking
SDO201036395U29º35793357821436Tracking
CRYOSAT 2201036508U92º72571299Tracking
SPEKTR-R201137755U69º3008277085613979Tracking
GCOM-W1 (SHIZUKU)201238337U98º70370299Tracking
NUSTAR201238358U6º61359797Tracking
RBSP A201238752U10º30422597537Tracking
RBSP B201238753U10º30736609543Tracking
NEOSSAT201339089U99º786768100Tracking
BRITE-AUSTRIA201339091U99º783767100Tracking
UNIBRITE201339092U99º783768100Tracking
IRIS201339197U98º65361597Tracking
HISAKI (SPRINT-A)201339253U30º1155952106Tracking
CASSIOPE201339265U81º1308320101Tracking
DANDE201339267U81º1348320102Tracking
STSAT-3201339422U98º61658397Tracking
BRITE-PL201339431U98º879593100Tracking
SWARM B201339451U88º50550095Tracking
SWARM A201339452U87º44243793Tracking
SWARM C201339453U87º44243793Tracking
BRITE-TORONTO201440020U98º73561098Tracking
OCO 2201440059U98º70470199Tracking
BRITE-PL 2201440119U98º62860597Tracking
RESURS P2201440360U97º47646494Tracking
MMS 1201540482U24º15354814984031Tracking
MMS 2201540483U24º15354014884030Tracking
MMS 3201540484U24º15353814914030Tracking
MMS 4201540485U24º15353814914030Tracking
ASTROSAT201540930U6º64863598Tracking
DAMPE201541173U97º50448695Tracking
PISAT201641784U98º70566198Tracking
HXMT201742758U43º54853795Tracking
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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