ESSA 4 (TOS-B), 2657
Orbit data source: Space-Track
ESSA 4 (TOS-B), 2657 is a payload satellite owned by ESSA (US) in SSO that was launched on Thu, 26 Jan 1967 UTC via a THOR DELTA E 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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2657 intel report (Beta)
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Edit Public Description
Expand to show TLE details & history
TLE from 15 hours ago
0 ESSA 4 (TOS-B)
1 02657U 67006A 25181.73717715 -.00000041 00000-0 42065-4 0 9991
2 02657 102.0847 357.8855 0072738 247.6736 123.6191 12.69883911707934
Epoch: 2025-06-30T17:41Z
TLE epoch observation values (Epoch: 2025-06-30T17:41:32.105Z)
Latitude
11.6748°
Longitude
170.93595°
Altitude
1,415.79 km
Speed
7.139 km/s
True Right ascension
23h 41m 26s
True Declination
11° 36' 45"
Sunlit
Visualization orbit readout
Latitude
-25.70167°
Longitude
179.99652°
Altitude
1,388.771 km
Speed
7.166 km/s
Apparent Right ascension
03h 09m 09s
Apparent Declination
-49° 47' 21"
Sunlit
Visualization observer readout
Local Sidereal Time
20:15:11
Azimuth
127.921° SE
Elevation
-37.268°
Doppler factor
1
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Other satellites on launch #6 in the year 1967 (1967-01-26 UTC)
ESSA 4 (TOS-B) Visibility forecast
Observer location: undefined°, undefined°
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. |
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4 mins | 2025-07-01 09:01:02.837Z | 60.347° ENE | 2025-07-01 09:03:02.837Z | 45.812° ENE | 11.578° | 2025-07-01 09:05:02.837Z | 31.012° NE |
14 mins | 2025-07-01 10:46:02.837Z | 134.559° SE | 2025-07-01 10:53:02.837Z | 57.564° ENE | 38.473° | 2025-07-01 11:00:02.837Z | 352.542° N |
13 mins | 2025-07-01 12:38:02.837Z | 203.258° SW | 2025-07-01 12:44:02.837Z | 259.201° W | 29.697° | 2025-07-01 12:51:02.837Z | 322.846° NNW |
14 mins | 2025-07-02 00:31:02.837Z | 24.566° NE | 2025-07-02 00:37:02.837Z | 84.033° E | 42.961° | 2025-07-02 00:45:02.837Z | 188.873° SSW |
11 mins | 2025-07-02 02:23:02.837Z | 350.634° N | 2025-07-02 02:28:02.837Z | 305.225° NW | 24.688° | 2025-07-02 02:34:02.837Z | 253.429° W |
Event ID | Pc | Md | Secondary | Secondary name | Country | Click to unsort rows by TCA header |
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