RIGIDSPHERE 2 (LCS 4), 5398
Orbit data source: Space-Track
RIGIDSPHERE 2 (LCS 4), 5398 is an American payload satellite in LEO that was launched on Sat, 07 Aug 1971 UTC via an ATLAS F 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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5398 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
ROHR/MITLL
Mission
Operational spacecraft
Bus & Motor
LCS, Unknown motor
Mass
~38 kg wet, ~38 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: 4 hours ago
TLE from 4 hours ago
0 RIGIDSPHERE 2 (LCS 4)
1 5398U 71067E 26154.55169341 .00000666 00000-0 21127-3 0 9992
2 5398 87.6211 342.5985 0057561 278.4778 80.9900 14.37851450871926Epoch: 2026-06-03T13:14Z
TLE epoch observation values (Epoch: 2026-06-03T13:14:26.310Z)
Latitude
-0.00002°
Longitude
-108.01981°
Altitude
762.466 km
Speed
7.476 km/s
True Right ascension
22h 50m 23s
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
02:57:46
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
803.647 km
Perigee altitude
721.442 km
Semi-major axis
7,140.682 km
Eccentricity
0.00576
Inclination
87.6211°
RAAN
342.5985°
Arg. of periapsis
278.4778°
True anomaly
81.64218°
Mean anomaly
80.99°
Eccentric anomaly
81.31602°
Mean motion
3.59694 °/min
Orbital period
100.08 mins
BSTAR
0.00021127
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Other satellites on launch #67 in the year 1971 (1971-08-07 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.RIGIDSPHERE 2 (LCS 4) 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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2026-06-03 23:50:33.959Z | 26.007° NE | 2026-06-03 23:54:33.959Z | 77.7° E | 23.568° | 2026-06-03 23:58:33.959Z | 132.829° SE |
| 8 mins | 2026-06-04 01:31:33.959Z | 333.448° NNW | 2026-06-04 01:34:33.959Z | 288.865° WNW | 29.551° | 2026-06-04 01:39:33.959Z | 213.75° SW |
| 9 mins | 2026-06-04 12:44:33.959Z | 163.936° S | 2026-06-04 12:48:33.959Z | 87.63° E | 41.439° | 2026-06-04 12:53:33.959Z | 8.328° NNE |
| 4 mins | 2026-06-04 14:27:33.959Z | 262.018° W | 2026-06-04 14:29:33.959Z | 287.169° WNW | 14.381° | 2026-06-04 14:31:33.959Z | 311.287° NW |
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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