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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)198919822U753337256123Tracking
Hubble199020580U2854253795Tracking
POLAR199623802U795497532511109Tracking
SWAS199825560U7059358196Tracking
ORSTED199925635U9683063499Tracking
CXO199925867U73129407194193809Tracking
XMM-NEWTON199925989U6911508760212872Tracking
TERRA199925994U9870370199Tracking
CLUSTER II-FM6 (SALSA)200026410U13197947349453260Tracking
CLUSTER II-FM7 (SAMBA)200026411U130102892298663255Tracking
CLUSTER II-FM5 (RUMBA)200026463U134100743320213255Tracking
CLUSTER II-FM8 (TANGO)200026464U13197876349183256Tracking
ODIN200126702U9855253796Tracking
TIMED200126998U7460560497Tracking
RHESSI200227370U3848647094Tracking
CORIOLIS200327640U99838819101Tracking
SORCE200327651U4061858697Tracking
MOST200327843U99831816101Tracking
SCISAT 1200327858U7464463397Tracking
SWIFT200428485U2156354796Tracking
FORMOSAT-3 FM6200629047U72834758101Tracking
FORMOSAT-3 FM1200629048U72829764101Tracking
FORMOSAT-3 FM5200629049U72823770101Tracking
FORMOSAT-3 FM3200629050U7273566199Tracking
FORMOSAT-3 FM4200629051U72845748101Tracking
FORMOSAT-3 FM2200629052U72826766101Tracking
CLOUDSAT200629107U9870470199Tracking
CALIPSO200629108U9870370299Tracking
HINODE (SOLAR-B)200629479U9868966598Tracking
SJ-6C200629505U9858758196Tracking
SJ-6D200629506U9859058596Tracking
AGILE200731135U248446794Tracking
AIM200731304U9853452595Tracking
FGRST (GLAST)200833053U2654252595Tracking
WISE200936119U9748147994Tracking
SDO201036395U2935792357791436Tracking
CRYOSAT 2201036508U9272271599Tracking
SPEKTR-R201137755U693040046431613796Tracking
GCOM-W1 (SHIZUKU)201238337U9870470199Tracking
NUSTAR201238358U661359697Tracking
RBSP A201238752U1030434583537Tracking
RBSP B201238753U1030738607543Tracking
NEOSSAT201339089U99784770100Tracking
BRITE-AUSTRIA201339091U99782768100Tracking
UNIBRITE201339092U99781769100Tracking
IRIS201339197U9865461497Tracking
HISAKI (SPRINT-A)201339253U301155951106Tracking
CASSIOPE201339265U811302321101Tracking
DANDE201339267U811343321102Tracking
STSAT-3201339422U9861558397Tracking
BRITE-PL201339431U98881591100Tracking
SWARM B201339451U8850450195Tracking
SWARM A201339452U8744043793Tracking
SWARM C201339453U8744043793Tracking
BRITE-TORONTO201440020U9873361298Tracking
OCO 2201440059U9870370299Tracking
BRITE-PL 2201440119U9862960397Tracking
RESURS P2201440360U9747846194Tracking
MMS 1201540482U2215375619444055Tracking
MMS 2201540483U2215374219584055Tracking
MMS 3201540484U2215374519554055Tracking
MMS 4201540485U2215374019604055Tracking
ASTROSAT201540930U664763698Tracking
DAMPE201541173U9750648495Tracking
PISAT201641784U9870665998Tracking
HXMT201742758U4354753795Tracking
FLYING LAPTOP201742831U9860458797Tracking
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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