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 4 hours ago
0 ESSA 4 (TOS-B)
1 2657U 67006A 25163.46284611 -.00000049 00000-0 53678-5 0 9996
2 2657 102.0832 338.7192 0072705 283.6252 100.8618 12.69883587706059
Epoch: 2025-06-12T11:06Z
TLE epoch observation values (Epoch: 2025-06-12T11:06:29.903Z)
Latitude
24.73285°
Longitude
-94.56721°
Altitude
1,396.144 km
Speed
7.159 km/s
True Right ascension
22h 12m 21s
True Declination
24° 36' 47"
Sunlit
Visualization orbit readout
Latitude
59.88182°
Longitude
112.79463°
Altitude
1,446.974 km
Speed
7.119 km/s
Apparent Right ascension
13h 00m 22s
Apparent Declination
17° 16' 11"
Sunlit
Visualization observer readout
Local Sidereal Time
01:47:14
Azimuth
13.186° NNE
Elevation
-31.78°
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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10 mins | 2025-06-12 22:59:53.482Z | 54.345° ENE | 2025-06-12 23:04:53.482Z | 94.584° ESE | 17.883° | 2025-06-12 23:09:53.482Z | 133.479° SE |
15 mins | 2025-06-13 00:49:53.482Z | 16.617° NNE | 2025-06-13 00:56:53.482Z | 262.61° W | 44.9° | 2025-06-13 01:04:53.482Z | 202.467° SSW |
9 mins | 2025-06-13 02:42:53.482Z | 342.702° N | 2025-06-13 02:46:53.482Z | 309.132° NW | 19.168° | 2025-06-13 02:51:53.482Z | 269.095° W |
10 mins | 2025-06-13 09:50:53.482Z | 96.802° ESE | 2025-06-13 09:55:53.482Z | 49.784° ENE | 23.671° | 2025-06-13 10:00:53.482Z | 7.691° NNE |
14 mins | 2025-06-13 11:39:53.482Z | 170.658° S | 2025-06-13 11:45:53.482Z | 248.722° W | 43.893° | 2025-06-13 11:53:53.482Z | 338.638° N |
4 mins | 2025-06-13 13:36:53.482Z | 258.85° W | 2025-06-13 13:38:53.482Z | 274.297° WNW | 12.197° | 2025-06-13 13:40:53.482Z | 289.331° WNW |
Event ID | Pc | Md | Secondary | Secondary name | Country | Click to unsort rows by TCA header |
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