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: 10 hours ago
TLE from 10 hours ago
0 SECOR 4 (EGRS 4)
1 01315U 65027B 25352.53305346 .00000093 00000-0 31711-3 0 9994
2 01315 90.2439 11.4783 0029843 314.3944 170.1422 12.92662647863589Epoch: 2025-12-18T12:47Z
TLE epoch observation values (Epoch: 2025-12-18T12:47:35.818Z)
Latitude
55.49487°
Longitude
-87.4551°
Altitude
1,322.794 km
Speed
7.19 km/s
True Right ascension
12h 47m 19s
True Declination
55° 20' 45"
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
21:34:10
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,310.987 km
Perigee altitude
1,265.23 km
Semi-major axis
7,666.246 km
Eccentricity
0.00298
Inclination
90.2439°
RAAN
11.4783°
Arg. of periapsis
314.3944°
True anomaly
170.20053°
Mean anomaly
170.1422°
Eccentric anomaly
170.17139°
Mean motion
3.23347 °/min
Orbital period
111.34 mins
BSTAR
0.00031711
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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. |
|---|---|---|---|---|---|---|---|
| 14 mins | 2025-12-19 01:14:27.734Z | 156.281° SSE | 2025-12-19 01:21:27.734Z | 88.985° E | 39.709° | 2025-12-19 01:28:27.734Z | 7.364° NNE |
| 11 mins | 2025-12-19 03:08:27.734Z | 232.431° WSW | 2025-12-19 03:13:27.734Z | 282.406° WNW | 24.431° | 2025-12-19 03:19:27.734Z | 334.627° NNW |
| 13 mins | 2025-12-19 12:55:27.734Z | 21.219° NNE | 2025-12-19 13:01:27.734Z | 86.716° E | 33.666° | 2025-12-19 13:08:27.734Z | 153.602° SSE |
| 12 mins | 2025-12-19 14:46:27.734Z | 342.862° N | 2025-12-19 14:52:27.734Z | 281.492° WNW | 31.519° | 2025-12-19 14:58:27.734Z | 222.593° SW |
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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