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: 19 hours ago
TLE from 19 hours ago
0 MIDAS 3
1 00163U 61018A 26038.42066535 .00000007 00000-0 21627-2 0 9993
2 00163 91.1079 199.6358 0100670 297.7576 61.3118 8.91838913102448Epoch: 2026-02-07T10:05Z
TLE epoch observation values (Epoch: 2026-02-07T10:05:45.486Z)
Latitude
-0.00001°
Longitude
-89.34816°
Altitude
3,399.65 km
Speed
6.401 km/s
True Right ascension
13h 18m 32s
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
06:56:24
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
3,540.736 km
Perigee altitude
3,343.02 km
Semi-major axis
9,820.015 km
Eccentricity
0.01007
Inclination
91.1079°
RAAN
199.6358°
Arg. of periapsis
297.7576°
True anomaly
62.32988°
Mean anomaly
61.3118°
Eccentric anomaly
61.82023°
Mean motion
2.23036 °/min
Orbital period
161.41 mins
BSTAR
0.0021627
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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. |
|---|---|---|---|---|---|---|---|
| 20 mins | 2026-02-08 07:51:39.029Z | 87.944° E | 2026-02-08 08:01:39.029Z | 51.366° ENE | 18.791° | 2026-02-08 08:11:39.029Z | 14.99° NNE |
| 33 mins | 2026-02-08 10:21:39.029Z | 161.653° S | 2026-02-08 10:37:39.029Z | 77.137° E | 44.274° | 2026-02-08 10:54:39.029Z | 359.096° N |
| 28 mins | 2026-02-08 13:06:39.029Z | 233.688° WSW | 2026-02-08 13:19:39.029Z | 285.658° WNW | 26.224° | 2026-02-08 13:34:39.029Z | 344.305° N |
| 4 mins | 2026-02-08 19:20:39.029Z | 48.636° ENE | 2026-02-08 19:21:39.029Z | 52.034° ENE | 10.429° | 2026-02-08 19:24:39.029Z | 62.214° ENE |
| 34 mins | 2026-02-08 21:52:39.029Z | 8.896° NNE | 2026-02-08 22:08:39.029Z | 81.538° E | 40.961° | 2026-02-08 22:26:39.029Z | 165.605° S |
| 30 mins | 2026-02-09 00:33:39.029Z | 353.312° N | 2026-02-09 00:48:39.029Z | 290.489° WNW | 33.98° | 2026-02-09 01:03:39.029Z | 230.972° 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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