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: 20 hours ago
TLE from 20 hours ago
0 MIDAS 3
1 00163U 61018A 26040.43965098 .00000031 00000-0 10597-1 0 9999
2 00163 91.1084 199.7222 0100676 295.5312 63.5179 8.91838903102625Epoch: 2026-02-09T10:33Z
TLE epoch observation values (Epoch: 2026-02-09T10:33:05.844Z)
Latitude
-0°
Longitude
-98.0866°
Altitude
3,403.053 km
Speed
6.399 km/s
True Right ascension
13h 18m 53s
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
09:19:07
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
3,540.742 km
Perigee altitude
3,343.014 km
Semi-major axis
9,820.015 km
Eccentricity
0.01007
Inclination
91.1084°
RAAN
199.7222°
Arg. of periapsis
295.5312°
True anomaly
64.55628°
Mean anomaly
63.5179°
Eccentric anomaly
64.03651°
Mean motion
2.23036 °/min
Orbital period
161.41 mins
BSTAR
0.010597
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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. |
|---|---|---|---|---|---|---|---|
| 26 mins | 2026-02-10 08:14:06.843Z | 107.868° ESE | 2026-02-10 08:27:06.843Z | 58.745° ENE | 25.118° | 2026-02-10 08:40:06.843Z | 9.71° NNE |
| 34 mins | 2026-02-10 10:48:06.843Z | 176.227° S | 2026-02-10 11:04:06.843Z | 241.809° WSW | 44.818° | 2026-02-10 11:22:06.843Z | 356.31° N |
| 22 mins | 2026-02-10 13:38:06.843Z | 254.991° W | 2026-02-10 13:49:06.843Z | 296.577° NW | 19.007° | 2026-02-10 14:00:06.843Z | 336.969° NNW |
| 20 mins | 2026-02-10 19:42:06.843Z | 27.961° NE | 2026-02-10 19:52:06.843Z | 64.237° ENE | 16.899° | 2026-02-10 20:02:06.843Z | 99.909° ESE |
| 35 mins | 2026-02-10 22:19:06.843Z | 4.897° NNE | 2026-02-10 22:36:06.843Z | 81.469° E | 44.321° | 2026-02-10 22:54:06.843Z | 179.422° S |
| 27 mins | 2026-02-11 01:01:06.843Z | 350.23° N | 2026-02-11 01:14:06.843Z | 300.161° NW | 27.603° | 2026-02-11 01:28:06.843Z | 246.648° WSW |
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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