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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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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

CYL, 1.1 m

Radar Cross Section

Medium (>0.1 m² and <1 m²)

Expand to show TLE details & history
Last TLE update: 17 hours ago

TLE from 17 hours ago

0 ESSA 5
1 02757U 67036A   26259.03753741 -.00000053  00000-0 -26378-4 0  9997
2 02757 101.9928  85.0361 0043052  73.8918  77.5766 12.68544071750497

Epoch: 2026-09-16T00:54Z

TLE epoch observation values (Epoch: 2026-09-16T00:54:03.232Z)

Latitude

27.42461°

Longitude

-97.17536°

Altitude

1,383.893 km

Speed

7.173 km/s

True Right ascension

18h 05m 19s

True Declination

27° 17' 44"

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

10:39:45

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,418.837 km

Perigee altitude

1,351.99 km

Semi-major axis

7,763.55 km

Eccentricity

0.00431

Inclination

101.9928°

RAAN

85.0361°

Arg. of periapsis

73.8918°

True anomaly

78.05894°

Mean anomaly

77.5766°

Eccentric anomaly

77.81772°

Mean motion

3.17287 °/min

Orbital period

113.46 mins

BSTAR

-0.000026378

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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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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.
5 mins	2026-09-16 23:31:27.302Z	69.599° E	2026-09-16 23:34:27.302Z	92.595° ESE	12.244°	2026-09-16 23:36:27.302Z	107.808° ESE
14 mins	2026-09-17 01:20:27.302Z	23.155° NE	2026-09-17 01:26:27.302Z	95.505° ESE	74.337°	2026-09-17 01:34:27.302Z	191.774° SSW
10 mins	2026-09-17 03:12:27.302Z	348.943° N	2026-09-17 03:17:27.302Z	303.359° NW	25.068°	2026-09-17 03:22:27.302Z	259.502° W
8 mins	2026-09-17 10:23:27.302Z	80.257° E	2026-09-17 10:26:27.302Z	53.731° ENE	19.372°	2026-09-17 10:31:27.302Z	12.27° NNE
14 mins	2026-09-17 12:10:27.302Z	158.154° S	2026-09-17 12:17:27.302Z	4.405° NNE	81.827°	2026-09-17 12:24:27.302Z	343.239° N
8 mins	2026-09-17 14:05:27.302Z	235.483° WSW	2026-09-17 14:09:27.302Z	269.019° W	17.462°	2026-09-17 14:13:27.302Z	302.004° NW

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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: 17 hours ago

TLE from 17 hours ago

TLE epoch observation values (Epoch: 2026-09-16T00:54:03.232Z)

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: 17 hours ago