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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
Hubble199020580U2853753395Tracking
POLAR199623802U794978984361109Tracking
SWAS199825560U7058957896Tracking
CXO199925867U4614540134073808Tracking
XMM-NEWTON199925989U70101234198812872Tracking
TERRA199925994U9870370199Tracking
CLUSTER II-FM7 (SAMBA)200026410U134107032257753257Tracking
CLUSTER II-FM6 (SALSA)200026411U136118958138373256Tracking
CLUSTER II-FM5 (RUMBA)200026463U140115443173533257Tracking
CLUSTER II-FM8 (TANGO)200026464U134107016257803256Tracking
ODIN200126702U9854552995Tracking
TIMED200126998U7460360197Tracking
RHESSI200227370U3844243493Tracking
INTEGRAL200227540U7414712223543832Tracking
CORIOLIS200327640U99839818101Tracking
SORCE200327651U4061658197Tracking
MOST200327843U99830816101Tracking
SCISAT 1200327858U7464463197Tracking
SWIFT200428485U2155554096Tracking
CLOUDSAT200629107U9868768198Tracking
CALIPSO200629108U9868568398Tracking
HINODE (SOLAR-B)200629479U9869066598Tracking
SJ-6C200629505U9858257696Tracking
SJ-6D200629506U9858658596Tracking
AGILE200731135U246144794Tracking
AIM200731304U9851950995Tracking
FGRST (GLAST)200833053U2653852295Tracking
WISE200936119U9746946394Tracking
SDO201036395U3235794357781436Tracking
CRYOSAT 2201036508U9272371699Tracking
X-SAT201137389U98821800101Tracking
GCOM-W1 (SHIZUKU)201238337U9870370299Tracking
NUSTAR201238358U660959297Tracking
NEOSSAT201339089U98784768100Tracking
BRITE-AUSTRIA201339091U98782766100Tracking
IRIS201339197U9865261297Tracking
HISAKI (SPRINT-A)201339253U301154951106Tracking
CASSIOPE201339265U811211318100Tracking
STSAT-3201339422U9761358197Tracking
SWARM B201339451U8850750295Tracking
SWARM A201339452U8743843493Tracking
SWARM C201339453U8743442993Tracking
BRITE-CA1 (TORONTO)201440020U9873261098Tracking
OCO 2201440059U9870470199Tracking
BRITE-PL2 (HEWELIUSZ)201440119U9862560297Tracking
RESURS P2201440360U9746345094Tracking
MMS 1201540482U3217547570435060Tracking
MMS 2201540483U3217573270145069Tracking
MMS 3201540484U3217548670405061Tracking
MMS 4201540485U3217557070175063Tracking
ASTROSAT201540930U664663498Tracking
DAMPE201541173U9750148494Tracking
PISAT201641784U9870265998Tracking
HXMT (HUIYAN)201742758U4354053095Tracking
FLYING LAPTOP201742831U9760358297Tracking
PICSAT201843132U9748046794Tracking
ZHANGZHENG-1 (CSES)201843194U9851249695Tracking
ICON201944628U2760257696Tracking
SALSAT202046495U9856554196Tracking
IXPE202149954U060258697Tracking
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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