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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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: 1 week ago
TLE from 1 week ago
0 SECOR 4 (EGRS 4)
1 01315U 65027B 26154.63129344 .00000023 00000-0 60153-4 0 9994
2 01315 90.2503 15.2719 0029664 234.0218 181.5511 12.92667418885170Epoch: 2026-06-03T15:09Z
TLE epoch observation values (Epoch: 2026-06-03T15:09:03.753Z)
Latitude
55.65335°
Longitude
-104.44534°
Altitude
1,323.001 km
Speed
7.19 km/s
True Right ascension
00h 59m 37s
True Declination
55° 30' 17"
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
13:51:06
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,310.831 km
Perigee altitude
1,265.349 km
Semi-major axis
7,666.227 km
Eccentricity
0.00297
Inclination
90.2503°
RAAN
15.2719°
Arg. of periapsis
234.0218°
True anomaly
181.54193°
Mean anomaly
181.5511°
Eccentric anomaly
181.54651°
Mean motion
3.23348 °/min
Orbital period
111.34 mins
BSTAR
0.000060153
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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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2026-06-10 03:37:31.798Z | 282.901° WNW | 2026-06-10 03:37:31.798Z | 282.901° WNW | 34.64° | 2026-06-10 03:44:31.798Z | 213.744° SW |
| 13 mins | 2026-06-10 14:09:31.798Z | 155.592° SSE | 2026-06-10 14:15:31.798Z | 90.89° ESE | 40.515° | 2026-06-10 14:22:31.798Z | 6.755° NNE |
| 11 mins | 2026-06-10 16:02:31.798Z | 233.458° WSW | 2026-06-10 16:07:31.798Z | 281.806° WNW | 23.958° | 2026-06-10 16:13:31.798Z | 333.664° NNW |
| 13 mins | 2026-06-11 01:49:31.798Z | 20.211° NNE | 2026-06-11 01:55:31.798Z | 86.582° E | 34.208° | 2026-06-11 02:02:31.798Z | 155.043° SSE |
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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