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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)198919822U75º3125254120Tracking
Hubble199020580U28º54053695Tracking
POLAR199623802U79º5266855571109Tracking
SWAS199825560U70º59058296Tracking
ORSTED199925635U96º82963499Tracking
CXO199925867U67º133399154343809Tracking
XMM-NEWTON199925989U71º110971101382872Tracking
TERRA199925994U98º70370299Tracking
CLUSTER II-FM7 (SAMBA)200026410U131º96663361303256Tracking
CLUSTER II-FM6 (SALSA)200026411U131º104606281873256Tracking
CLUSTER II-FM5 (RUMBA)200026463U135º102066307313257Tracking
CLUSTER II-FM8 (TANGO)200026464U131º96661361333256Tracking
ODIN200126702U98º55053695Tracking
TIMED200126998U74º60560297Tracking
RHESSI200227370U38º47846394Tracking
INTEGRAL200227540U50º14631031173830Tracking
CORIOLIS200327640U99º839818101Tracking
SORCE200327651U40º61658697Tracking
MOST200327843U99º830817101Tracking
SCISAT 1200327858U74º64463297Tracking
SWIFT200428485U21º56154696Tracking
FORMOSAT-3 FM6200629047U72º833759101Tracking
FORMOSAT-3 FM1200629048U72º827765101Tracking
FORMOSAT-3 FM5200629049U72º821770101Tracking
FORMOSAT-3 FM3200629050U72º73166299Tracking
FORMOSAT-3 FM4200629051U72º844748101Tracking
FORMOSAT-3 FM2200629052U72º824767101Tracking
CLOUDSAT200629107U98º68668598Tracking
CALIPSO200629108U98º68768598Tracking
HINODE (SOLAR-B)200629479U98º68866698Tracking
SJ-6C200629505U98º58558196Tracking
SJ-6D200629506U98º58958596Tracking
AGILE200731135U2º47946294Tracking
AIM200731304U98º52952495Tracking
FGRST (GLAST)200833053U26º54152495Tracking
WISE200936119U97º47947494Tracking
SDO201036395U30º35795357791436Tracking
CRYOSAT 2201036508U92º72571299Tracking
X-SAT201137389U98º822799101Tracking
GCOM-W1 (SHIZUKU)201238337U98º70470199Tracking
NUSTAR201238358U6º61259597Tracking
RBSP A201238752U10º30235217527Tracking
RBSP B201238753U10º30387209529Tracking
NEOSSAT201339089U98º786768100Tracking
IRIS201339197U98º65461397Tracking
HISAKI (SPRINT-A)201339253U30º1155951106Tracking
CASSIOPE201339265U81º1279319101Tracking
STSAT-3201339422U98º61658197Tracking
SWARM B201339451U88º50250095Tracking
SWARM A201339452U87º43743293Tracking
SWARM C201339453U87º43743293Tracking
BRITE-TORONTO201440020U98º73361198Tracking
OCO 2201440059U98º70370199Tracking
BRITE-PL 2201440119U98º62860397Tracking
RESURS P2201440360U97º47346094Tracking
MMS 1201540482U17º17828736195037Tracking
MMS 2201540483U17º17829137075040Tracking
MMS 3201540484U17º17828837195041Tracking
MMS 4201540485U17º17824636655037Tracking
ASTROSAT201540930U6º64763598Tracking
DAMPE201541173U97º50348695Tracking
PISAT201641784U98º70565998Tracking
HXMT (HUIYAN)201742758U43º54953295Tracking
FLYING LAPTOP201742831U98º60458597Tracking
PICSAT201843132U97º50248895Tracking
ZHANGZHENG-1 (CSES)201843194U97º51549195Tracking
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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