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Iridium Satellites
Information found in the database of Iridium Satellite. Iridium are satellites for communication placed in low orbit, with three antennas extremely reflective. When the light of sun in reflect these antennas on proper angle, produce an intense flare that can be easily seen in the sky. It is compared to a flash that may last for several seconds
Satellite Launch Norad Incl.
degrees
Apogee
Km
Perigee
Km
Period
min
Options
IRIDIUM 7 [-]199724793U86779776100Tracking
IRIDIUM 5 [-]199724795U8672953097Tracking
IRIDIUM 4 [-]199724796U86776773100Tracking
IRIDIUM 914 [-]199724836U86763762100Tracking
IRIDIUM 16 [-]199724841U86772766100Tracking
IRIDIUM 911 [-]199724842U86751733100Tracking
IRIDIUM 17 [-]199724870U86775770100Tracking
IRIDIUM 920 [-]199724871U86769751100Tracking
IRIDIUM 921 [-]199724873U8653552495Tracking
IRIDIUM 26 [-]199724903U86776772100Tracking
IRIDIUM 46 [-]199724905U8656125693Tracking
IRIDIUM 22 [-]199724907U86779776100Tracking
DUMMY MASS 1 [-]199724925U8661960697Tracking
DUMMY MASS 2 [-]199724926U8662160797Tracking
IRIDIUM 29 [-]199724944U86777775100Tracking
IRIDIUM 32 [+]199724945U86779776100Tracking
IRIDIUM 33 [-]199724946U86787772100Tracking
IRIDIUM 28 [-]199724948U86775771100Tracking
IRIDIUM 31 [B]199724950U86764762100Tracking
IRIDIUM 35 [B]199724966U86764762100Tracking
IRIDIUM 36 [-]199724967U86774771100Tracking
IRIDIUM 39 [-]199725042U86753723100Tracking
IRIDIUM 38 [-]199725043U86774769100Tracking
IRIDIUM 42 [-]199725077U86778775100Tracking
IRIDIUM 44 [-]199725078U86767762100Tracking
IRIDIUM 45 [+]199725104U86779776100Tracking
IRIDIUM 24 [-]199725105U86768750100Tracking
IRIDIUM 52 [P]199825169U8670220794Tracking
IRIDIUM 54 [+]199825171U86764762100Tracking
IRIDIUM 51 [-]199825262U8674945897Tracking
IRIDIUM 61 [B]199825263U86764762100Tracking
IRIDIUM 55 [B]199825272U86764762100Tracking
IRIDIUM 57 [-]199825273U86779776100Tracking
IRIDIUM 58 [B]199825274U86765762100Tracking
IRIDIUM 59 [+]199825275U86779776100Tracking
IRIDIUM 60 [+]199825276U86779776100Tracking
IRIDIUM 62 [P]199825285U8672938296Tracking
IRIDIUM 63 [-]199825286U86777774100Tracking
IRIDIUM 64 [B]199825287U86765761100Tracking
IRIDIUM 69 [-]199825319U86766760100Tracking
IRIDIUM 71 [-]199825320U86764759100Tracking
IRIDIUM 73 [-]199825344U8673072799Tracking
IRIDIUM 82 [-]199825467U8672547097Tracking
IRIDIUM 2 [-]199825527U8652150595Tracking
IRIDIUM 84 [-]199825530U8646417991Tracking
IRIDIUM 83 [-]199825531U8663216493Tracking
IRIDIUM 20 [-]199825577U8716210487Tracking
IRIDIUM 11 [-]199825578U8622612188Tracking
IRIDIUM 14 [+]199925777U86765761100Tracking
IRIDIUM 91 [+]200227372U86779776100Tracking
IRIDIUM 90 [-]200227373U8649623892Tracking
IRIDIUM 95 [+]200227375U86779777100Tracking
IRIDIUM 96 [-]200227376U8663728194Tracking
IRIDIUM 97 [B]200227450U86764762100Tracking
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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