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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
Hubble199020580U2851351095Tracking
POLAR199623802U795001382111109Tracking
SWAS199825560U7057155896Tracking
CXO199925867U4214595028753809Tracking
XMM-NEWTON199925989U6894766263362872Tracking
TERRA199925994U9869469399Tracking
CLUSTER II-FM7 (SAMBA)200026410U140121396113483255Tracking
CLUSTER II-FM6 (SALSA)200026411U1491322424793254Tracking
CLUSTER II-FM5 (RUMBA)200026463U15112899437853256Tracking
CLUSTER II-FM8 (TANGO)200026464U140121492112983256Tracking
ODIN200126702U9750048894Tracking
TIMED200126998U7459559197Tracking
INTEGRAL200227540U9014486046233832Tracking
CORIOLIS200327640U99838816101Tracking
SORCE200327651U4059556796Tracking
MOST200327843U99830814101Tracking
SCISAT 1200327858U7463762697Tracking
SWIFT200428485U2151150095Tracking
CALIPSO200629108U9867567398Tracking
HINODE (SOLAR-B)200629479U9868466098Tracking
SHIJIAN-6 02A (SJ-6 02A)200629505U9855855296Tracking
SHIJIAN-6 02B (SJ-6 02B)200629506U9857657396Tracking
FGRST (GLAST)200833053U2652250795Tracking
WISE200936119U9736436192Tracking
SDO201036395U3335790357831436Tracking
CRYOSAT 2201036508U9272271799Tracking
X-SAT201137389U98819800101Tracking
GCOM-W1 (SHIZUKU)201238337U9870370299Tracking
NUSTAR201238358U658456996Tracking
NEOSSAT201339089U98783766100Tracking
BRITE-AUSTRIA201339091U98780765100Tracking
IRIS201339197U9864260397Tracking
HISAKI (SPRINT-A)201339253U301154951106Tracking
CASSIOPE201339265U81100331098Tracking
STSAT-3201339422U9859556896Tracking
SWARM B201339451U8850650295Tracking
SWARM A201339452U8746846594Tracking
SWARM C201339453U8746846594Tracking
BRITE-CA1 (TORONTO)201440020U9872160498Tracking
OCO 2201440059U9870370199Tracking
BRITE-PL2 (HEWELIUSZ)201440119U9861159197Tracking
RESURS-P 2201440360U9738837992Tracking
MMS 1201540482U5017998226175064Tracking
MMS 2201540483U5018000026205064Tracking
MMS 3201540484U5017999926205064Tracking
MMS 4201540485U5018016326155071Tracking
ASTROSAT201540930U663862797Tracking
DAMPE201541173U9749347494Tracking
PISAT201641784U9869465398Tracking
HXMT (HUIYAN)201742758U4353051295Tracking
FLYING LAPTOP201742831U9759057396Tracking
ZHANGHENG 1 (CSES)201843194U9851349595Tracking
SALSAT202046495U9853451695Tracking
IXPE202149954U057856596Tracking
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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