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MIDAS 5 (STRONGBACK), 271

Orbit data source: Space-Track

MIDAS 5 (STRONGBACK), 271 is a payload satellite owned by USAF SSD (US) in LEO that was launched on Mon, 09 Apr 1962 UTC via an ATLAS AGENA B 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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https://www.satcat.com/sats-embedded/271?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

271, 1962-010A

Orbit

LEO

Country

Related business

United States Space Force (US)

Manufacturer

LMSC

Mission

Spacecraft

Bus & Motor

MIDAS, Unknown motor

Mass

~1,543 kg wet, ~840 kg dry

Launch date (UTC)

1962-04-09 (64 years ago)

Launch vehicle

ATLAS AGENA B

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Unknown

Radar Cross Section

Large (>1 m²)

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

TLE from 13 hours ago

0 MIDAS 5 (STRONGBACK)
1   271U 62010A   26198.60497699  .00000018  00000-0  27666-2 0  9993
2   271  86.6656 311.4580 0327511 352.3777   7.2223  9.41308245208534

Epoch: 2026-07-17T14:31Z

TLE epoch observation values (Epoch: 2026-07-17T14:31:10.011Z)

Latitude

-0.00008°

Longitude

158.2366°

Altitude

2,791.48 km

Speed

6.7 km/s

True Right ascension

20h 45m 49s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow 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

15:56:13

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

3,404.838 km

Perigee altitude

2,784.353 km

Semi-major axis

9,472.732 km

Eccentricity

0.03275

Inclination

86.6656°

RAAN

311.458°

Arg. of periapsis

352.3777°

True anomaly

7.71406°

Mean anomaly

7.2223°

Eccentric anomaly

7.46613°

Mean motion

2.35413 °/min

Orbital period

152.92 mins

BSTAR

0.0027666

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Other satellites on launch #10 in the year 1962 (1962-04-09 UTC)

MIDAS 5 DEB, 273

MIDAS 5 DEB, 272 (Decayed)

MIDAS 5 DEB, 18603

MIDAS 5 DEB, 4494 (Decayed)

MIDAS 5 DEB, 5703 (Decayed)

MIDAS 5 DEB, 19981

MIDAS 5 DEB, 274

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MIDAS 5 (STRONGBACK) 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.
23 mins	2026-07-18 05:55:53.739Z	120.429° SE	2026-07-18 06:06:53.739Z	70.52° E	26.027°	2026-07-18 06:18:53.739Z	17.243° NNE
29 mins	2026-07-18 08:24:53.739Z	189.927° SSW	2026-07-18 08:38:53.739Z	285.826° WNW	43.852°	2026-07-18 08:53:53.739Z	0.521° NNE
15 mins	2026-07-18 11:09:53.739Z	278.49° WNW	2026-07-18 11:15:53.739Z	304.548° NW	15.57°	2026-07-18 11:24:53.739Z	341.228° N
23 mins	2026-07-18 16:45:53.739Z	17.99° NNE	2026-07-18 16:56:53.739Z	61.511° ENE	20.048°	2026-07-18 17:08:53.739Z	105.759° ESE
33 mins	2026-07-18 19:17:53.739Z	359.123° N	2026-07-18 19:32:53.739Z	67.378° ENE	44.674°	2026-07-18 19:50:53.739Z	176.847° S
24 mins	2026-07-18 21:52:53.739Z	339.281° N	2026-07-18 22:03:53.739Z	294.043° NW	25.956°	2026-07-18 22:16:53.739Z	243.465° WSW

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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 MIDAS 5 (STRONGBACK), 271 on other resources

View MIDAS 5 (STRONGBACK), 271 on NASA - NSSDCA Website

View MIDAS 5 (STRONGBACK), 271 on Heavens-Above

View MIDAS 5 (STRONGBACK), 271 on Keep Track

View MIDAS 5 (STRONGBACK), 271 on Celestrak

View MIDAS 5 (STRONGBACK), 271 on Gunter's Space Page

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

MIDAS 5 (STRONGBACK), 271

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: 2026-07-17T14:31:10.011Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #10 in the year 1962 (1962-04-09 UTC)

MIDAS 5 (STRONGBACK) Visibility forecast

Co-orbital & Co-planar RSOs

Check out MIDAS 5 (STRONGBACK), 271 on other resources

Documentation

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