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IRIDIUM 121, 42812

Orbit data source: Space-Track

IRIDIUM 121, 42812 is a payload satellite owned by Iridium (US) in LEO that was launched on Sun, 25 Jun 2017 UTC via an FALCON 9 launch vehicle from the Air Force Western Test Range (AFWTR). Payloads include a variety of satellites, spacecraft, and rockets equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.

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IRIDIUM 121 details

Identifier	42812, 2017-039K
Orbit	LEO
Last TLE update	15 hours ago
Origin	Iridium (US)
Manufacturer	OATK SSG Gilbert
Mission	Operational Commercial Communications
Bus & Motor	ELITEBUS, Unknown motor
Mass	860 kg wet, 700 kg dry
Launch date (UTC)	2017-06-25 (8 years ago)
Launch vehicle	FALCON 9
Launch site	Air Force Western Test Range (AFWTR)
Object type	Payload Rocket body Debris
Shape & HBR	Trap Box + 2 Pan, 9.4 m
Radar Cross Section	14.423 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 15 hours ago

0 IRIDIUM 121
1 42812U 17039K   24361.11285541  .00000172  00000-0  54532-4 0  9993
2 42812  86.3979 218.4868 0001916  90.4902 269.6514 14.34219187392703

Epoch: 2024-12-26T02:42Z

Definitive object data (Epoch: 2024-12-26T02:42:30.707Z)

Latitude	0.00004°
Longitude	82.76194°
Altitude	780.722 km
Speed	7.463 km/s
True Right ascension	14h 33m 56s
True Declination	0° 00' 00"
Sunlit	Object was in daylight at TLE epoch

Visualization TLE readout

Latitude	50.69934°
Longitude	86.88293°
Altitude	784.787 km
Speed	7.467 km/s
Apparent Right ascension	09h 42m 09s
Apparent Declination	24° 59' 17"
Sunlit	Object is in daylight

Visualization observer readout

Local Sidereal Time	17:23:15
Azimuth	304.925° NW
Elevation	-1.476°
Doppler factor	1

Orbital elements

Apogee altitude	775.997 km
Perigee altitude	773.256 km
Semi-major axis	7,152.764 km
Eccentricity	0.0001916
Inclination	86.3979°
RAAN	218.4868°
Arg. of periapsis	90.4902°
True anomaly	269.62944°
Mean anomaly	269.6514°
Eccentric anomaly	269.64042°
Mean motion	3.58783 °/min
BSTAR	0.000054532
Orbital period	100.34 mins

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Other satellites on launch #39 in the year 2017 (2017-06-25 UTC)

IRIDIUM 121 Visibility forecast

Observer location: undefined°, undefined

Span	Click to sort rows by Start time (UTC) header in descending order	Start Az.	Max El. time (UTC)	Max El. Az.	Max El.	End time (UTC)	End Az.
9 mins	2024-12-27 02:43:50.098Z	2.182° NNE	2024-12-27 02:47:50.098Z	61.376° ENE	43.89°	2024-12-27 02:52:50.098Z	172.58° S
5 mins	2024-12-27 14:01:50.098Z	105.547° ESE	2024-12-27 14:03:50.098Z	78.262° E	16.884°	2024-12-27 14:06:50.098Z	41.273° NE
8 mins	2024-12-27 15:40:50.098Z	209.333° SW	2024-12-27 15:43:50.098Z	269.238° W	37.316°	2024-12-27 15:48:50.098Z	350.868° N

Authenticating...

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Check out IRIDIUM 121, 42812 on other resources

View IRIDIUM 121, 42812 on NASA - NSSDCA Website

View IRIDIUM 121, 42812 on Heavens-Above

View IRIDIUM 121, 42812 on Keep Track

View IRIDIUM 121, 42812 on Celestrak

View IRIDIUM 121, 42812 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.