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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
Hubble199020580U2852852595Tracking
POLAR199623802U794957886471109Tracking
SWAS199825560U7058157296Tracking
CXO199925867U3814749213093808Tracking
XMM-NEWTON199925989U6997825232852872Tracking
TERRA199925994U9869869399Tracking
CLUSTER II-FM7 (SAMBA)200026410U136113548192723257Tracking
CLUSTER II-FM6 (SALSA)200026411U14112582969513256Tracking
CLUSTER II-FM5 (RUMBA)200026463U144122161106263256Tracking
CLUSTER II-FM8 (TANGO)200026464U136113511192823256Tracking
ODIN200126702U9853151695Tracking
TIMED200126998U7459959897Tracking
INTEGRAL200227540U8414595335423833Tracking
CORIOLIS200327640U99838817101Tracking
SORCE200327651U4060557997Tracking
MOST200327843U99829816101Tracking
SCISAT 1200327858U7464063097Tracking
SWIFT200428485U2154152795Tracking
CLOUDSAT200629107U9868167998Tracking
CALIPSO200629108U9868167998Tracking
HINODE (SOLAR-B)200629479U9868866398Tracking
SJ-6C200629505U9857456796Tracking
SJ-6D200629506U9858457996Tracking
AGILE200731135U241440493Tracking
AIM200731304U9847947794Tracking
FGRST (GLAST)200833053U2653251695Tracking
WISE200936119U9744443993Tracking
SDO201036395U3235793357801436Tracking
CRYOSAT 2201036508U9272371599Tracking
X-SAT201137389U98820800101Tracking
GCOM-W1 (SHIZUKU)201238337U9870370299Tracking
NUSTAR201238358U660058497Tracking
NEOSSAT201339089U98783768100Tracking
BRITE-AUSTRIA201339091U98780766100Tracking
IRIS201339197U9864761097Tracking
HISAKI (SPRINT-A)201339253U301154951106Tracking
CASSIOPE201339265U81112631599Tracking
STSAT-3201339422U9760657697Tracking
SWARM B201339451U8849949595Tracking
SWARM A201339452U8748748294Tracking
SWARM C201339453U8748748294Tracking
BRITE-CA1 (TORONTO)201440020U9872760898Tracking
OCO 2201440059U9870470199Tracking
BRITE-PL2 (HEWELIUSZ)201440119U9862159797Tracking
RESURS P2201440360U9744043293Tracking
MMS 1201540482U2917973423285043Tracking
MMS 2201540483U2917970123485042Tracking
MMS 3201540484U2917977723495045Tracking
MMS 4201540485U2917970723415042Tracking
ASTROSAT201540930U664363197Tracking
DAMPE201541173U9749947994Tracking
PISAT201641784U9870165598Tracking
HXMT (HUIYAN)201742758U4353552695Tracking
FLYING LAPTOP201742831U9759758096Tracking
PICSAT201843132U9740439593Tracking
ZHANGZHENG-1 (CSES)201843194U9850849895Tracking
ICON201944628U2759456996Tracking
SALSAT202046495U9855453396Tracking
IXPE202149954U059357896Tracking
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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