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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)198919822U753261256122Tracking
Hubble199020580U2854153795Tracking
POLAR199623802U795432439021109Tracking
SWAS199825560U7059158296Tracking
ORSTED199925635U9682963499Tracking
CXO199925867U72129864189663809Tracking
XMM-NEWTON199925989U7011417369222872Tracking
TERRA199925994U9870370199Tracking
CLUSTER II-FM7 (SAMBA)200026410U13196747360883258Tracking
CLUSTER II-FM6 (SALSA)200026411U130102566302043256Tracking
CLUSTER II-FM5 (RUMBA)200026463U134100343324333256Tracking
CLUSTER II-FM8 (TANGO)200026464U13196712360853257Tracking
ODIN200126702U9855153796Tracking
TIMED200126998U7460560397Tracking
RHESSI200227370U3848546694Tracking
INTEGRAL200227540U4914366857513830Tracking
CORIOLIS200327640U99840818101Tracking
SORCE200327651U4061758697Tracking
MOST200327843U99831815101Tracking
SCISAT 1200327858U7464563297Tracking
SWIFT200428485U2156254696Tracking
FORMOSAT-3 FM6200629047U72834759101Tracking
FORMOSAT-3 FM1200629048U72829764101Tracking
FORMOSAT-3 FM5200629049U72822770101Tracking
FORMOSAT-3 FM3200629050U7273466199Tracking
FORMOSAT-3 FM4200629051U72845748101Tracking
FORMOSAT-3 FM2200629052U72826766101Tracking
CLOUDSAT200629107U9869468499Tracking
CALIPSO200629108U9870370199Tracking
HINODE (SOLAR-B)200629479U9868966698Tracking
SJ-6C200629505U9858758196Tracking
SJ-6D200629506U9859058596Tracking
AGILE200731135U248246594Tracking
AIM200731304U9853352395Tracking
FGRST (GLAST)200833053U2654152495Tracking
WISE200936119U9748147794Tracking
SDO201036395U2935791357811436Tracking
CRYOSAT 2201036508U9272271599Tracking
X-SAT201137389U99821801101Tracking
GCOM-W1 (SHIZUKU)201238337U9870470199Tracking
NUSTAR201238358U661259697Tracking
RBSP A201238752U1030431585537Tracking
RBSP B201238753U1030753591543Tracking
NEOSSAT201339089U99785769100Tracking
IRIS201339197U9865461497Tracking
HISAKI (SPRINT-A)201339253U301155951106Tracking
CASSIOPE201339265U811294320101Tracking
STSAT-3201339422U9861558397Tracking
SWARM B201339451U8850450095Tracking
SWARM A201339452U8743943493Tracking
SWARM C201339453U8743943493Tracking
BRITE-TORONTO201440020U9873361198Tracking
OCO 2201440059U9870470199Tracking
BRITE-PL 2201440119U9862960397Tracking
RESURS P2201440360U9747546194Tracking
MMS 1201540482U1115438013334055Tracking
MMS 2201540483U1115434213524054Tracking
MMS 3201540484U1115436813444055Tracking
MMS 4201540485U1115436913444055Tracking
ASTROSAT201540930U664863598Tracking
DAMPE201541173U9750548495Tracking
PISAT201641784U9870566098Tracking
HXMT (HUIYAN)201742758U4354853495Tracking
FLYING LAPTOP201742831U9860458697Tracking
PICSAT201843132U9850549195Tracking
ZHANGZHENG-1 (CSES)201843194U9751449195Tracking
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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