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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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: 1 day ago
TLE from 1 day ago
0 MIDAS 3
1 00163U 61018A 26128.15382187 .00000001 00000-0 79801-4 0 9990
2 00163 91.1215 203.5033 0101747 198.9196 160.7882 8.91838914110443Epoch: 2026-05-08T03:41Z
TLE epoch observation values (Epoch: 2026-05-08T03:41:30.209Z)
Latitude
0.00005°
Longitude
-77.86226°
Altitude
3,540.842 km
Speed
6.309 km/s
True Right ascension
13h 34m 00s
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
11:35:21
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
3,541.793 km
Perigee altitude
3,341.962 km
Semi-major axis
9,820.015 km
Eccentricity
0.01017
Inclination
91.1215°
RAAN
203.5033°
Arg. of periapsis
198.9196°
True anomaly
161.16731°
Mean anomaly
160.7882°
Eccentric anomaly
160.97821°
Mean motion
2.23036 °/min
Orbital period
161.41 mins
BSTAR
0.000079801
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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. |
|---|---|---|---|---|---|---|---|
| 33 mins | 2026-05-09 03:57:58.255Z | 143.723° SSE | 2026-05-09 04:14:58.255Z | 69.436° E | 39.562° | 2026-05-09 04:30:58.255Z | 2.706° NNE |
| 33 mins | 2026-05-09 06:38:58.255Z | 210.047° SW | 2026-05-09 06:54:58.255Z | 277.687° WNW | 35.518° | 2026-05-09 07:11:58.255Z | 349.628° N |
| 31 mins | 2026-05-09 15:28:58.255Z | 13.175° NNE | 2026-05-09 15:43:58.255Z | 76.918° E | 32.868° | 2026-05-09 15:59:58.255Z | 145.396° SSE |
| 31 mins | 2026-05-09 18:09:58.255Z | 357.277° N | 2026-05-09 18:24:58.255Z | 289.102° WNW | 40.907° | 2026-05-09 18:40:58.255Z | 212.083° SW |
| 10 mins | 2026-05-09 20:54:58.255Z | 333.457° NNW | 2026-05-09 20:59:58.255Z | 315.4° NNW | 12.844° | 2026-05-09 21:04:58.255Z | 297.405° NW |
| 14 mins | 2026-05-10 01:46:58.255Z | 67.674° E | 2026-05-10 01:52:58.255Z | 46.503° ENE | 14.352° | 2026-05-10 02:00:58.255Z | 18.496° NNE |
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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