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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)198919822U753108254120Tracking
Hubble199020580U2854053695Tracking
POLAR199623802U795245057741109Tracking
SWAS199825560U7059357996Tracking
ORSTED199925635U9683163299Tracking
CXO199925867U66133987148413809Tracking
XMM-NEWTON199925989U71110518105932872Tracking
TERRA199925994U9870470199Tracking
CLUSTER II-FM7 (SAMBA)200026410U13196914359073257Tracking
CLUSTER II-FM6 (SALSA)200026411U131105078277113256Tracking
CLUSTER II-FM5 (RUMBA)200026463U135102302303053250Tracking
CLUSTER II-FM8 (TANGO)200026464U13196883359103256Tracking
ODIN200126702U9855153595Tracking
TIMED200126998U7460560297Tracking
RHESSI200227370U3847846294Tracking
INTEGRAL200227540U5114649029783832Tracking
CORIOLIS200327640U99839818101Tracking
SORCE200327651U4061658597Tracking
MOST200327843U99831815101Tracking
SCISAT 1200327858U7464463297Tracking
SWIFT200428485U2156154696Tracking
FORMOSAT-3 FM6200629047U72831761101Tracking
FORMOSAT-3 FM1200629048U72826766101Tracking
FORMOSAT-3 FM5200629049U72819772101Tracking
FORMOSAT-3 FM3200629050U7273166299Tracking
FORMOSAT-3 FM4200629051U72845746101Tracking
FORMOSAT-3 FM2200629052U72823768101Tracking
CLOUDSAT200629107U9868868498Tracking
CALIPSO200629108U9868668598Tracking
HINODE (SOLAR-B)200629479U9869066498Tracking
SJ-6C200629505U9858757996Tracking
SJ-6D200629506U9858858696Tracking
AGILE200731135U247946294Tracking
AIM200731304U9853152295Tracking
FGRST (GLAST)200833053U2654152495Tracking
WISE200936119U9747947494Tracking
SDO201036395U3035792357791436Tracking
CRYOSAT 2201036508U9272371499Tracking
X-SAT201137389U98820801101Tracking
GCOM-W1 (SHIZUKU)201238337U9870470199Tracking
NUSTAR201238358U661259597Tracking
RBSP A201238752U1030166235526Tracking
RBSP B201238753U1030294238528Tracking
NEOSSAT201339089U98784769100Tracking
IRIS201339197U9865261597Tracking
HISAKI (SPRINT-A)201339253U301155951106Tracking
CASSIOPE201339265U811274321101Tracking
STSAT-3201339422U9861458397Tracking
SWARM B201339451U8850449895Tracking
SWARM A201339452U8743643293Tracking
SWARM C201339453U8743643293Tracking
BRITE-TORONTO201440020U9873460998Tracking
OCO 2201440059U9870370299Tracking
BRITE-PL 2201440119U9862860397Tracking
RESURS P2201440360U9747246094Tracking
MMS 1201540482U1917790840945040Tracking
MMS 2201540483U1917753443295035Tracking
MMS 3201540484U1917789240995040Tracking
MMS 4201540485U2017769943485042Tracking
ASTROSAT201540930U664763598Tracking
DAMPE201541173U9750548494Tracking
PISAT201641784U9870465998Tracking
HXMT (HUIYAN)201742758U4354953295Tracking
FLYING LAPTOP201742831U9860558497Tracking
PICSAT201843132U9750148895Tracking
ZHANGZHENG-1 (CSES)201843194U9751249395Tracking
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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