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ESSA 5, 2757

Orbit data source: Space-Track

ESSA 5, 2757 is a payload satellite owned by ESSA (US) in SSO that was launched on Thu, 20 Apr 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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<iframe src="https://www.satcat.com/sats-embedded/2757?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/2757?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

2757, 1967-036A

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

147 kg wet, 147 kg dry

Launch date (UTC)

1967-04-20 (59 years ago)

Launch vehicle

THOR DELTA E

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: 8 hours ago

TLE from 8 hours ago

0 ESSA 5
1 02757U 67036A   26120.51944067 -.00000032  00000-0  83858-4 0  9992
2 02757 101.9898 301.2102 0042671 346.0028  18.8874 12.68542273732931

Epoch: 2026-04-30T12:27Z

TLE epoch observation values (Epoch: 2026-04-30T12:27:59.673Z)

Latitude

4.86076°

Longitude

-105.28299°

Altitude

1,358.63 km

Speed

7.194 km/s

True Right ascension

20h 00m 43s

True Declination

4° 50' 03"

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

03:43:30

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,418.548 km

Perigee altitude

1,352.293 km

Semi-major axis

7,763.558 km

Eccentricity

0.00427

Inclination

101.9898°

RAAN

301.2102°

Arg. of periapsis

346.0028°

True anomaly

19.04649°

Mean anomaly

18.8874°

Eccentric anomaly

18.96686°

Mean motion

3.17287 °/min

Orbital period

113.46 mins

BSTAR

0.000083858

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Other satellites on launch #36 in the year 1967 (1967-04-20 UTC)

DELTA 1 DEB, 2976

DELTA 1 R/B, 2758

DELTA 1 DEB, 2977

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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.

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ESSA 5 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.
15 mins	2026-05-01 00:24:51.615Z	28.087° NE	2026-05-01 00:31:51.615Z	92.182° ESE	38.404°	2026-05-01 00:39:51.615Z	177.471° S
12 mins	2026-05-01 02:17:51.615Z	355.564° N	2026-05-01 02:23:51.615Z	293.694° NW	30.123°	2026-05-01 02:29:51.615Z	241.502° WSW
5 mins	2026-05-01 09:30:51.615Z	61.768° ENE	2026-05-01 09:32:51.615Z	45.733° ENE	13.302°	2026-05-01 09:35:51.615Z	22.549° NE
13 mins	2026-05-01 11:16:51.615Z	140.972° SSE	2026-05-01 11:22:51.615Z	58.833° ENE	41.541°	2026-05-01 11:29:51.615Z	349.56° N
11 mins	2026-05-01 13:09:51.615Z	219.042° SW	2026-05-01 13:14:51.615Z	268.277° W	24.309°	2026-05-01 13:20:51.615Z	318.631° NNW

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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 5, 2757 on other resources

View ESSA 5, 2757 on NASA - NSSDCA Website

View ESSA 5, 2757 on Heavens-Above

View ESSA 5, 2757 on Keep Track

View ESSA 5, 2757 on Celestrak

View ESSA 5, 2757 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 5, 2757

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 8 hours ago

TLE from 8 hours ago

TLE epoch observation values (Epoch: 2026-04-30T12:27:59.673Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #36 in the year 1967 (1967-04-20 UTC)

ESSA 5 Visibility forecast

Co-orbital & Co-planar RSOs

Check out ESSA 5, 2757 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 8 hours ago