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: 16 hours ago
TLE from 16 hours ago
0 MIDAS 3
1 163U 61018A 26130.62149471 -.00000008 00000-0 -33086-2 0 9994
2 163 91.1213 203.6101 0101801 196.2235 163.5367 8.91838836110660Epoch: 2026-05-10T14:54Z
TLE epoch observation values (Epoch: 2026-05-10T14:54:57.142Z)
Latitude
-0.00005°
Longitude
111.45007°
Altitude
3,542.334 km
Speed
6.308 km/s
True Right ascension
13h 34m 26s
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
14:53:48
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
3,541.847 km
Perigee altitude
3,341.91 km
Semi-major axis
9,820.015 km
Eccentricity
0.01018
Inclination
91.1213°
RAAN
203.6101°
Arg. of periapsis
196.2235°
True anomaly
163.86331°
Mean anomaly
163.5367°
Eccentric anomaly
163.7004°
Mean motion
2.23036 °/min
Orbital period
161.41 mins
BSTAR
-0.0033086
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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. |
|---|---|---|---|---|---|---|---|
| 30 mins | 2026-05-11 07:08:00.306Z | 225.596° WSW | 2026-05-11 07:23:00.306Z | 284.106° WNW | 28.681° | 2026-05-11 07:38:00.306Z | 344.35° N |
| 32 mins | 2026-05-11 15:56:00.306Z | 9.732° NNE | 2026-05-11 16:12:00.306Z | 84.427° E | 39.147° | 2026-05-11 16:28:00.306Z | 159.641° S |
| 30 mins | 2026-05-11 18:37:00.306Z | 354.412° N | 2026-05-11 18:52:00.306Z | 288.861° WNW | 35.482° | 2026-05-11 19:07:00.306Z | 226.072° WSW |
| 21 mins | 2026-05-12 02:08:00.306Z | 91.298° ESE | 2026-05-12 02:19:00.306Z | 50.811° ENE | 20.196° | 2026-05-12 02:29:00.306Z | 14.307° NNE |
| 34 mins | 2026-05-12 04:38:00.306Z | 164.526° S | 2026-05-12 04:55:00.306Z | 68.082° E | 44.623° | 2026-05-12 05:12:00.306Z | 358.496° N |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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