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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)198919822U75º3108254120Tracking
Hubble199020580U28º54053695Tracking
POLAR199623802U79º5245057741109Tracking
SWAS199825560U70º59357996Tracking
ORSTED199925635U96º83163299Tracking
CXO199925867U66º133987148413809Tracking
XMM-NEWTON199925989U71º110518105932872Tracking
TERRA199925994U98º70470199Tracking
CLUSTER II-FM7 (SAMBA)200026410U131º96914359073257Tracking
CLUSTER II-FM6 (SALSA)200026411U131º105078277113256Tracking
CLUSTER II-FM5 (RUMBA)200026463U135º102302303053250Tracking
CLUSTER II-FM8 (TANGO)200026464U131º96883359103256Tracking
ODIN200126702U98º55153595Tracking
TIMED200126998U74º60560297Tracking
RHESSI200227370U38º47846294Tracking
INTEGRAL200227540U51º14649029783832Tracking
CORIOLIS200327640U99º839818101Tracking
SORCE200327651U40º61658597Tracking
MOST200327843U99º831815101Tracking
SCISAT 1200327858U74º64463297Tracking
SWIFT200428485U21º56154696Tracking
FORMOSAT-3 FM6200629047U72º831761101Tracking
FORMOSAT-3 FM1200629048U72º826766101Tracking
FORMOSAT-3 FM5200629049U72º819772101Tracking
FORMOSAT-3 FM3200629050U72º73166299Tracking
FORMOSAT-3 FM4200629051U72º845746101Tracking
FORMOSAT-3 FM2200629052U72º823768101Tracking
CLOUDSAT200629107U98º68868498Tracking
CALIPSO200629108U98º68668598Tracking
HINODE (SOLAR-B)200629479U98º69066498Tracking
SJ-6C200629505U98º58757996Tracking
SJ-6D200629506U98º58858696Tracking
AGILE200731135U2º47946294Tracking
AIM200731304U98º53152295Tracking
FGRST (GLAST)200833053U26º54152495Tracking
WISE200936119U97º47947494Tracking
SDO201036395U30º35792357791436Tracking
CRYOSAT 2201036508U92º72371499Tracking
X-SAT201137389U98º820801101Tracking
GCOM-W1 (SHIZUKU)201238337U98º70470199Tracking
NUSTAR201238358U6º61259597Tracking
RBSP A201238752U10º30166235526Tracking
RBSP B201238753U10º30294238528Tracking
NEOSSAT201339089U98º784769100Tracking
IRIS201339197U98º65261597Tracking
HISAKI (SPRINT-A)201339253U30º1155951106Tracking
CASSIOPE201339265U81º1274321101Tracking
STSAT-3201339422U98º61458397Tracking
SWARM B201339451U88º50449895Tracking
SWARM A201339452U87º43643293Tracking
SWARM C201339453U87º43643293Tracking
BRITE-TORONTO201440020U98º73460998Tracking
OCO 2201440059U98º70370299Tracking
BRITE-PL 2201440119U98º62860397Tracking
RESURS P2201440360U97º47246094Tracking
MMS 1201540482U19º17790840945040Tracking
MMS 2201540483U19º17753443295035Tracking
MMS 3201540484U19º17789240995040Tracking
MMS 4201540485U20º17769943485042Tracking
ASTROSAT201540930U6º64763598Tracking
DAMPE201541173U97º50548494Tracking
PISAT201641784U98º70465998Tracking
HXMT (HUIYAN)201742758U43º54953295Tracking
FLYING LAPTOP201742831U98º60558497Tracking
PICSAT201843132U97º50148895Tracking
ZHANGZHENG-1 (CSES)201843194U97º51249395Tracking
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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