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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)198919822U75º3055255119Tracking
Hubble199020580U28º54053695Tracking
POLAR199623802U79º5183363921109Tracking
SWAS199825560U70º58958296Tracking
ORSTED199925635U96º82963499Tracking
CXO199925867U64º135907129263809Tracking
XMM-NEWTON199925989U71º109032120742872Tracking
TERRA199925994U98º70370299Tracking
CLUSTER II-FM7 (SAMBA)200026410U132º97775349823255Tracking
CLUSTER II-FM6 (SALSA)200026411U132º106926260093261Tracking
CLUSTER II-FM5 (RUMBA)200026463U135º104061287693258Tracking
CLUSTER II-FM8 (TANGO)200026464U132º97796349963256Tracking
ODIN200126702U98º55053595Tracking
TIMED200126998U74º60560297Tracking
RHESSI200227370U38º47646194Tracking
INTEGRAL200227540U53º14724222583833Tracking
CORIOLIS200327640U99º838819101Tracking
SORCE200327651U40º61758597Tracking
MOST200327843U99º830816101Tracking
SCISAT 1200327858U74º64463297Tracking
SWIFT200428485U21º56154596Tracking
FORMOSAT-3 FM6200629047U72º833759101Tracking
FORMOSAT-3 FM1200629048U72º827765101Tracking
FORMOSAT-3 FM5200629049U72º821770101Tracking
FORMOSAT-3 FM3200629050U72º73166399Tracking
FORMOSAT-3 FM4200629051U72º844748101Tracking
FORMOSAT-3 FM2200629052U72º824767101Tracking
CLOUDSAT200629107U98º68668598Tracking
CALIPSO200629108U98º68668498Tracking
HINODE (SOLAR-B)200629479U98º68866698Tracking
SJ-6C200629505U98º58558196Tracking
SJ-6D200629506U98º58958596Tracking
AGILE200731135U2º47746194Tracking
AIM200731304U98º52852395Tracking
FGRST (GLAST)200833053U26º54152395Tracking
WISE200936119U97º47747594Tracking
SDO201036395U30º35789357811436Tracking
CRYOSAT 2201036508U92º72571299Tracking
X-SAT201137389U98º821800101Tracking
GCOM-W1 (SHIZUKU)201238337U98º70370299Tracking
NUSTAR201238358U6º61159597Tracking
NEOSSAT201339089U98º785768100Tracking
IRIS201339197U98º65461397Tracking
HISAKI (SPRINT-A)201339253U30º1155951106Tracking
CASSIOPE201339265U81º1270320101Tracking
STSAT-3201339422U98º61658197Tracking
SWARM B201339451U88º50349895Tracking
SWARM A201339452U87º43543193Tracking
SWARM C201339453U87º43543193Tracking
BRITE-CA1 (TORONTO)201440020U98º73361198Tracking
OCO 2201440059U98º70370199Tracking
BRITE-PL2 (HEWELIUSZ)201440119U98º62860397Tracking
RESURS P2201440360U97º47345894Tracking
MMS 1201540482U26º17577261785038Tracking
MMS 2201540483U26º17576261895038Tracking
MMS 3201540484U26º17576961905039Tracking
MMS 4201540485U26º17576661855038Tracking
ASTROSAT201540930U6º64763598Tracking
DAMPE201541173U97º50448594Tracking
PISAT201641784U98º70466098Tracking
HXMT (HUIYAN)201742758U43º54853295Tracking
FLYING LAPTOP201742831U98º60458597Tracking
PICSAT201843132U97º49948794Tracking
ZHANGZHENG-1 (CSES)201843194U97º51449295Tracking
ICON201944628U27º60658097Tracking
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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