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: 7 hours ago
TLE from 7 hours ago
0 SECOR 4 (EGRS 4)
1 1315U 65027B 25308.16617236 .00000057 00000-0 18153-3 0 9993
2 1315 90.2495 10.4896 0032746 69.3366 346.1266 12.92661295857858Epoch: 2025-11-04T03:59Z
TLE epoch observation values (Epoch: 2025-11-04T03:59:17.291Z)
Latitude
55.46326°
Longitude
-93.35025°
Altitude
1,275.856 km
Speed
7.234 km/s
True Right ascension
00h 40m 30s
True Declination
55° 18' 48"
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
06:41:24
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,313.218 km
Perigee altitude
1,263.01 km
Semi-major axis
7,666.251 km
Eccentricity
0.00327
Inclination
90.2495°
RAAN
10.4896°
Arg. of periapsis
69.3366°
True anomaly
346.03627°
Mean anomaly
346.1266°
Eccentric anomaly
346.08147°
Mean motion
3.23347 °/min
Orbital period
111.34 mins
BSTAR
0.00018153
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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. |
|---|---|---|---|---|---|---|---|
| 12 mins | 2025-11-04 15:28:08.620Z | 26.207° NE | 2025-11-04 15:34:08.620Z | 84.186° E | 26.502° | 2025-11-04 15:40:08.620Z | 139.069° SSE |
| 13 mins | 2025-11-04 17:19:08.620Z | 349.434° N | 2025-11-04 17:25:08.620Z | 284.554° WNW | 37.748° | 2025-11-04 17:32:08.620Z | 208.531° SW |
| 12 mins | 2025-11-05 03:58:08.620Z | 147.75° SSE | 2025-11-05 04:04:08.620Z | 71.329° E | 37.385° | 2025-11-05 04:10:08.620Z | 10.167° NNE |
| 11 mins | 2025-11-05 05:50:08.620Z | 226.898° WSW | 2025-11-05 05:55:08.620Z | 278.1° WNW | 26.475° | 2025-11-05 06:01:08.620Z | 334.877° NNW |
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 ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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