PORCUPINE 1, 1272
Orbit data source: Space-Track
PORCUPINE 1, 1272 is a payload satellite owned by NRL (US) in LEO that was launched on Tue, 09 Mar 1965 UTC via a THOR SLV-2 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.
Focus sentinelFocus sentinel
Request partner network tasking
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
1272 intel report (Beta)
Focus sentinelFocus sentinel
Edit Public Description
Focus sentinelFocus sentinel
Edit Sat Name
Focus sentinelFocus sentinel
Create New Watchlist
Identifier
Orbit
Country
USRelated business
Manufacturer
NRL
Mission
Spacecraft
Bus & Motor
NRL 9", Unknown motor
Mass
4 kg wet, 4 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
SPHERE + 12 ANT, 7.6 m
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 PORCUPINE 1
1 01272U 65016H 26208.88384684 -.00000007 00000-0 33358-4 0 9991
2 01272 70.0793 163.1888 0019775 66.1684 294.1492 13.94538346122052Epoch: 2026-07-27T21:12Z
TLE epoch observation values (Epoch: 2026-07-27T21:12:44.366Z)
Latitude
-0.00001°
Longitude
-100.55709°
Altitude
909.21 km
Speed
7.401 km/s
True Right ascension
10h 52m 45s
True Declination
0° 00' 00"
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
22:39:41
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
925.22 km
Perigee altitude
896.392 km
Semi-major axis
7,288.943 km
Eccentricity
0.00198
Inclination
70.0793°
RAAN
163.1888°
Arg. of periapsis
66.1684°
True anomaly
293.94222°
Mean anomaly
294.1492°
Eccentric anomaly
294.04573°
Mean motion
3.48776 °/min
Orbital period
103.22 mins
BSTAR
0.000033358
Loading maneuver chart data...
Computing Atmospheric mass density...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Other satellites on launch #16 in the year 1965 (1965-03-09 UTC)
Did you know?
You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.PORCUPINE 1 Visibility forecast
Loading observer location...
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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2026-07-28 21:25:56.817Z | 157.362° SSE | 2026-07-28 21:29:56.817Z | 105.088° ESE | 26.873° | 2026-07-28 21:34:56.817Z | 45.647° ENE |
| 9 mins | 2026-07-28 23:11:56.817Z | 243.464° WSW | 2026-07-28 23:15:56.817Z | 311.778° NW | 32.314° | 2026-07-28 23:20:56.817Z | 10.177° NNE |
| 7 mins | 2026-07-29 06:28:56.817Z | 16.821° NNE | 2026-07-29 06:31:56.817Z | 53.875° ENE | 19.067° | 2026-07-29 06:35:56.817Z | 96.551° ESE |
| 9 mins | 2026-07-29 08:13:56.817Z | 327.398° NNW | 2026-07-29 08:17:56.817Z | 249.13° W | 43.049° | 2026-07-29 08:22:56.817Z | 168.535° S |
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 |
|---|
CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
Authenticating...
Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in descending order |
|---|