MIDAS 3, 163
Orbit data source: Space-Track
MIDAS 3, 163 is a payload satellite owned by USAF SSD (US) in LEO that was launched on Wed, 12 Jul 1961 UTC via an ATLAS AGENA B launch vehicle from the Air Force Western Test Range (AFWTR). Payload-class satellites include a variety of spacecraft 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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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
LMSC
Mission
Spacecraft
Bus & Motor
MIDAS, Unknown motor
Mass
~1,540 kg wet, 840 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 15 hours ago
TLE from 15 hours ago
0 MIDAS 3
1 00163U 61018A 25356.53544297 -.00000005 00000-0 -23206-2 0 9998
2 00163 91.1031 197.6320 0100923 349.3486 10.5252 8.91838854 98261Epoch: 2025-12-22T12:51Z
TLE epoch observation values (Epoch: 2025-12-22T12:51:02.272Z)
Latitude
-0.00002°
Longitude
-86.45961°
Altitude
3,348.912 km
Speed
6.434 km/s
True Right ascension
13h 10m 31s
True Declination
0° 00' 00"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
02:43:16
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
3,540.985 km
Perigee altitude
3,342.772 km
Semi-major axis
9,820.015 km
Eccentricity
0.01009
Inclination
91.1031°
RAAN
197.632°
Arg. of periapsis
349.3486°
True anomaly
10.73911°
Mean anomaly
10.5252°
Eccentric anomaly
10.63189°
Mean motion
2.23036 °/min
Orbital period
161.41 mins
BSTAR
-0.0023206
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Other satellites on launch #18 in the year 1961 (1961-07-12 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.MIDAS 3 Visibility forecast
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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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2025-12-23 05:50:59.311Z | 328.683° NNW | 2025-12-23 05:53:59.311Z | 318.313° NNW | 11.01° | 2025-12-23 05:56:59.311Z | 308.046° NW |
| 16 mins | 2025-12-23 10:39:59.311Z | 76.149° E | 2025-12-23 10:46:59.311Z | 49.92° ENE | 16.29° | 2025-12-23 10:55:59.311Z | 16.994° NNE |
| 33 mins | 2025-12-23 13:06:59.311Z | 156.931° SSE | 2025-12-23 13:22:59.311Z | 73.542° E | 43.354° | 2025-12-23 13:39:59.311Z | 359.839° N |
| 28 mins | 2025-12-23 15:50:59.311Z | 227.758° WSW | 2025-12-23 16:04:59.311Z | 286.915° WNW | 28.326° | 2025-12-23 16:18:59.311Z | 344.081° N |
| 34 mins | 2025-12-24 00:36:59.311Z | 9.624° NNE | 2025-12-24 00:53:59.311Z | 89.441° E | 39.207° | 2025-12-24 01:10:59.311Z | 160.666° S |
| 18 mins | 2025-12-24 03:17:59.311Z | 354.737° N | 2025-12-24 03:32:59.311Z | 292.044° WNW | 36.101° | 2025-12-24 03:35:59.311Z | 270.428° WNW |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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