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ESSA 7 (TOS-E), 3345

Orbit data source: Space-Track

ESSA 7 (TOS-E), 3345 is a payload satellite owned by ESSA (US) in SSO that was launched on Fri, 16 Aug 1968 UTC via a THOR DELTA N 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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<iframe src="https://www.satcat.com/sats-embedded/3345?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/3345?theme=dark&initialShowStats=false

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Identifier

3345, 1968-069A

Orbit

SSO

Country

Related business

National Oceanic and Atmospheric Administration (US)

Manufacturer

RCA/East Windsor

Mission

Non-operational spacecraft

Bus & Motor

TIROS I, Unknown motor

Mass

154 kg wet, 154 kg dry

Launch date (UTC)

1968-08-16 (57 years ago)

Launch vehicle

THOR DELTA N

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 13 hours ago

TLE from 13 hours ago

0 ESSA 7 (TOS-E)
1 03345U 68069A   25310.82568883 -.00000039  00000-0  29495-4 0  9999
2 03345 101.5271 278.3490 0026369 241.3845 147.4307 12.53006593617138

Epoch: 2025-11-06T19:48Z

TLE epoch observation values (Epoch: 2025-11-06T19:48:59.514Z)

Latitude

28.38191°

Longitude

-71.47251°

Altitude

1,472.584 km

Speed

7.121 km/s

True Right ascension

18h 08m 12s

True Declination

28° 15' 05"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

04:57:18

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,470.115 km

Perigee altitude

1,428.834 km

Semi-major axis

7,827.611 km

Eccentricity

0.00264

Inclination

101.5271°

RAAN

278.349°

Arg. of periapsis

241.3845°

True anomaly

147.59291°

Mean anomaly

147.4307°

Eccentric anomaly

147.51185°

Mean motion

3.134 °/min

Orbital period

114.87 mins

BSTAR

0.000029495

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Other satellites on launch #69 in the year 1968 (1968-08-16 UTC)

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ESSA 7 (TOS-E) 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.
13 mins	2025-11-07 09:43:31.502Z	39.084° NE	2025-11-07 09:50:31.502Z	101.061° ESE	27.179°	2025-11-07 09:56:31.502Z	152.497° SSE
14 mins	2025-11-07 11:36:31.502Z	7.039° NNE	2025-11-07 11:43:31.502Z	287.914° WNW	40.226°	2025-11-07 11:50:31.502Z	219.916° SW
5 mins	2025-11-07 13:32:31.502Z	328.571° NNW	2025-11-07 13:34:31.502Z	313.575° NW	12.57°	2025-11-07 13:37:31.502Z	291.847° WNW
14 mins	2025-11-07 20:42:31.502Z	123.885° SE	2025-11-07 20:48:31.502Z	68.74° E	33.578°	2025-11-07 20:56:31.502Z	355.891° N
14 mins	2025-11-07 22:35:31.502Z	194.814° SSW	2025-11-07 22:41:31.502Z	257.429° W	35.411°	2025-11-07 22:49:31.502Z	330.711° NNW

Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out ESSA 7 (TOS-E), 3345 on other resources

View ESSA 7 (TOS-E), 3345 on NASA - NSSDCA Website

View ESSA 7 (TOS-E), 3345 on Heavens-Above

View ESSA 7 (TOS-E), 3345 on Keep Track

View ESSA 7 (TOS-E), 3345 on Celestrak

View ESSA 7 (TOS-E), 3345 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

ESSA 7 (TOS-E), 3345

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 13 hours ago

TLE from 13 hours ago

TLE epoch observation values (Epoch: 2025-11-06T19:48:59.514Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #69 in the year 1968 (1968-08-16 UTC)

ESSA 7 (TOS-E) Visibility forecast

Co-orbital & Co-planar RSOs

Check out ESSA 7 (TOS-E), 3345 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 13 hours ago