SECOR 4 (EGRS 4), 1315
Orbit data source: Space-Track
SECOR 4 (EGRS 4), 1315 is an American payload satellite in LEO that was launched on Sat, 03 Apr 1965 UTC via an ATLAS SLV-3 AGENA D 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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1315 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
ITT
Mission
Spacecraft
Bus & Motor
SECOR, Unknown motor
Mass
18 kg wet, 18 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Unknown
Radar Cross Section
Medium (>0.1 m² and <1 m²)
Expand to show TLE details & historyLast TLE update: 12 hours ago
TLE from 12 hours ago
0 SECOR 4 (EGRS 4)
1 01315U 65027B 25356.86626369 -.00000051 00000-0 -21480-3 0 9993
2 01315 90.2437 11.5737 0029650 302.5794 175.6068 12.92662653864141Epoch: 2025-12-22T20:47Z
TLE epoch observation values (Epoch: 2025-12-22T20:47:25.182Z)
Latitude
61.87129°
Longitude
148.51415°
Altitude
1,324.312 km
Speed
7.19 km/s
True Right ascension
12h 48m 06s
True Declination
61° 44' 19"
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
07:46:12
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,310.839 km
Perigee altitude
1,265.378 km
Semi-major axis
7,666.246 km
Eccentricity
0.00297
Inclination
90.2437°
RAAN
11.5737°
Arg. of periapsis
302.5794°
True anomaly
175.63273°
Mean anomaly
175.6068°
Eccentric anomaly
175.61977°
Mean motion
3.23347 °/min
Orbital period
111.34 mins
BSTAR
-0.0002148
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Other satellites on launch #27 in the year 1965 (1965-04-03 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.SECOR 4 (EGRS 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 | 2025-12-23 11:41:06.175Z | 41.72° NE | 2025-12-23 11:45:06.175Z | 73.69° E | 15.036° | 2025-12-23 11:49:06.175Z | 106.183° ESE |
| 14 mins | 2025-12-23 13:31:06.175Z | 2.905° NNE | 2025-12-23 13:37:06.175Z | 14.025° NNE | 44.876° | 2025-12-23 13:45:06.175Z | 184.266° SSW |
| 7 mins | 2025-12-23 15:24:06.175Z | 319.789° NNW | 2025-12-23 15:27:06.175Z | 294.625° NW | 16.098° | 2025-12-23 15:31:06.175Z | 261.206° W |
| 10 mins | 2025-12-24 00:11:06.175Z | 119.377° SE | 2025-12-24 00:16:06.175Z | 69.83° E | 24.672° | 2025-12-24 00:21:06.175Z | 24.127° NE |
| 13 mins | 2025-12-24 02:00:06.175Z | 196.495° SSW | 2025-12-24 02:06:06.175Z | 262.011° W | 39.837° | 2025-12-24 02:13:06.175Z | 347.48° N |
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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