NATO 2A, 4353
Orbit data source: Space-Track
NATO 2A, 4353 is a payload satellite owned by NATO (NATO) in GEO that was launched on Fri, 20 Mar 1970 UTC via a THOR DELTA M launch vehicle from the Air Force Eastern Test Range (AFETR). 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
Embed this page
Focus sentinelFocus sentinel
4353 intel report (Beta)
Focus sentinelFocus sentinel
Create New Watchlist
Focus sentinelFocus sentinel
Edit Public Description
Identifier
Orbit
Country
Unknown / NATORelated business
Manufacturer
Philco-Ford
Mission
Non-operational Defense Communications
Bus & Motor
SKYNET, STAR 17A
Mass
243 kg wet, ~107 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Cyl, 0.7 m
Radar Cross Section
1.131 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 1 day ago
TLE from 1 day ago
0 NATO 2A
1 04353U 70021A 25260.63238052 -.00000078 00000-0 00000-0 0 9995
2 04353 1.0678 287.3075 0003637 283.4575 263.6393 1.00269973123032Epoch: 2025-09-17T15:10Z
TLE epoch observation values (Epoch: 2025-09-17T15:10:37.676Z)
Latitude
-0.14624°
Longitude
-110.09623°
Altitude
35,788.245 km
Speed
3.075 km/s
True Right ascension
07h 37m 27s
True Declination
0° 08' 46"
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
09:18:38
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
35,803.509 km
Perigee altitude
35,772.837 km
Semi-major axis
42,166.31 km
Eccentricity
0.00036
Inclination
1.0678°
RAAN
287.3075°
Arg. of periapsis
283.4575°
True anomaly
263.59788°
Mean anomaly
263.6393°
Eccentric anomaly
263.61859°
Mean motion
0.25067 °/min
Orbital period
1,436.18 mins
BSTAR
0
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 #21 in the year 1970 (1970-03-20 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.NATO 2A 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. |
|---|---|---|---|---|---|---|---|
| 1440 mins | 2025-09-18 16:27:44.337Z | 187.667° SSW | 2025-09-19 08:30:44.337Z | 187.84° SSW | 35.132° | 2025-09-19 16:27:44.337Z | 187.676° SSW |
Loading historical data...
4353 neighbors
Authenticating...
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 |
|---|
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 ascending order |
|---|