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: 8 hours ago
TLE from 8 hours ago
0 SECOR 4 (EGRS 4)
1 01315U 65027B 26104.18617447 -.00000047 00000-0 -20146-3 0 9990
2 01315 90.2557 14.1138 0031507 10.7405 145.1151 12.92666428878659Epoch: 2026-04-14T04:28Z
TLE epoch observation values (Epoch: 2026-04-14T04:28:05.474Z)
Latitude
23.95836°
Longitude
-75.16199°
Altitude
1,313.691 km
Speed
7.193 km/s
True Right ascension
12h 56m 54s
True Declination
23° 50' 25"
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
18:47:36
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,312.248 km
Perigee altitude
1,263.94 km
Semi-major axis
7,666.231 km
Eccentricity
0.00315
Inclination
90.2557°
RAAN
14.1138°
Arg. of periapsis
10.7405°
True anomaly
145.32093°
Mean anomaly
145.1151°
Eccentric anomaly
145.21808°
Mean motion
3.23348 °/min
Orbital period
111.34 mins
BSTAR
-0.00020146
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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. |
|---|---|---|---|---|---|---|---|
| 10 mins | 2026-04-14 16:48:20.326Z | 115.728° SE | 2026-04-14 16:53:20.326Z | 71.984° E | 20.633° | 2026-04-14 16:58:20.326Z | 27.643° NE |
| 14 mins | 2026-04-14 18:37:20.326Z | 188.185° SSW | 2026-04-14 18:43:20.326Z | 248.471° W | 42.615° | 2026-04-14 18:51:20.326Z | 352.671° N |
| 7 mins | 2026-04-15 04:28:20.326Z | 49.038° ENE | 2026-04-15 04:31:20.326Z | 74.098° E | 15.019° | 2026-04-15 04:35:20.326Z | 106.599° ESE |
| 14 mins | 2026-04-15 06:17:20.326Z | 2.824° NNE | 2026-04-15 06:23:20.326Z | 12.272° NNE | 44.915° | 2026-04-15 06:31:20.326Z | 184.446° SSW |
| 7 mins | 2026-04-15 08:10:20.326Z | 319.473° NNW | 2026-04-15 08:13:20.326Z | 294.207° NW | 15.93° | 2026-04-15 08:17:20.326Z | 260.93° W |
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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