- Earth-watching satellite
- Military
- SECOR 3
- NORAD 1208
- 1965-016E
- Low Earth orbit
Current orbit
View on live mapOrbit began over the Southern Ocean
Orbit ends over the Southern Ocean
Sunlit since
Enters the Earth’s shadow
In view from you
Nobody watches EGRS III go over, but a receiver still asks whether it is above the horizon. Say where you are and this card answers.
Your position is rounded to about a kilometre and sent only to the Orbinauts API, to find the pass.
No brightness has been published for EGRS III, so it is not a naked-eye satellite and no city page carries pass times for it. Nothing here estimates one.
Seeing it
There is nothing to go outside for: it is too faint for the naked eye. What it is up there for reaches the ground as pictures and measurements, not as a light in the sky.
Timeline
- Launch
Launched, on the day GCAT records. Source
- Close approachStill to come
On Sunday, Nov 8 at 9:58 PM UTC, a fragment of Thorad Agena D (NORAD 4776) passes within 39 m of Secor 3 (NORAD 1208). The chance of a collision is about 1 in 8,000.
Summary
Over the Indian Ocean LIVE
Where is EGRS III?
At 6:31:53 PM UTC EGRS III was over the Indian Ocean (55.8° S, 122.2° E), 912 km up, moving at 7.4 km/s and in sunlight.
What is EGRS III?
A satellite that watches the Earth in low Earth orbit, in space since Mar 9, 1965.
Can I see EGRS III?
No, not with the naked eye: no brightness has been published for EGRS III, and nothing here estimates one; what people use is its pictures and measurements of the Earth.
General
- Operator
- Army Map Service, US Army Corps of Engineers
- State
- United States of America
- Built by
- ITT Federal Laboratories
- What it is
- Earth-watching satellite
- Military
- Yes: a defence organisation flies it
- Launched
- Mass
- 18 kg
- Operating
- Orbit class
- Low Earth orbit
From GCAT, Jonathan McDowell’s general catalogue, licensed CC BY 4.0: the operator, the state, the manufacturer, what it is for, that a defence organisation flies it, the launch day, the mass, and whether it is operating. The orbit class is read from its current elements.
Latest orbital data
- Position received
- 6:31 PM UTC
- Station time (UTC)
- 6:31 PM UTC
- Latitude / longitude
- 55.8° S, 122.2° E
- Altitude
- 912 km
- Speed
- 7.4 km/s (26,651 km/h)
- Course
- south-east
- Light
- In sunlight until 7:34 PM UTC
- Inclination
- 70.1°
- Orbital period
- 103.1 minutes
- Orbits per day
- 13.96
- This orbit
- 889 to 922 km
- In shadow
- 35 minutes of each orbit
- In view from
- Within 2,280 km of the point below it
- Elements epoch
- Nov 8, 2026, 6:04 AM, 12 hours old
- Source
- Position from Space-Track orbital elements of Nov 8, 2026, 6:04 AM, 12 hours old.
No operator publishes an ephemeris for EGRS III, so every position here comes from its orbital elements.
In orbit
- Close approaches
- 1 reported. On Sunday, Nov 8 at 9:58 PM UTC, a fragment of Thorad Agena D (NORAD 4776) passes within 39 m of Secor 3 (NORAD 1208). The chance of a collision is about 1 in 8,000.
From Space-Track’s public conjunction messages; the latest report was issued Nov 8, 2026, 1:11 PM, 3 hours old. Only approaches serious enough to be reported publicly are listed: within three days and, for two bodies near the Earth, closer than a kilometre with a chance of a collision above 1 in 10,000, the level at which NASA moves the ISS.
Launched with
EGRS III shares its launch, 1965-016, with 9 other bodies the catalogue lists in orbit.
| Body | What it is |
|---|---|
| GGSE 2 | Satellite |
| THOR AGENA D R/B | Rocket body |
| OPS 4988 (GREB 6) | Satellite |
| PORCUPINE 1 | Satellite |
| SOLRAD 7B | Satellite |
| GGSE 3 | Satellite |
| OSCAR 3 | Communications satellite |
| OPS 4988 DEB | Debris |
| GGSE 3 DEB | Debris |
Read from the international designators of the US catalogue: the year and the launch number every piece of one launch shares. A body that has come down is no longer listed.
Beside the others
| Satellite | Typical altitude | Orbital period | Mass | In space since |
|---|---|---|---|---|
| EGRS III | 889 to 922 km | 103 minutes | 18 kg | 1965 |
| Sentinel-5P | 826 to 828 km | 101 minutes | 820 kg | 2017 |
| Suomi NPP | 825 to 829 km | 101 minutes | about 2.1 t | 2011 |
| MetOp-SG A1 | 820 to 821 km | 101 minutes | about 4 t | 2025 |
| Metop-B | 818 to 823 km | 101 minutes | about 4.1 t | 2012 |
| Metop-C | 820 to 821 km | 101 minutes | about 4.1 t | 2018 |
Data and API
The current elements from Space-Track as an OMM object, epoch Nov 8, 2026, 6:04 AM, 12 hours old.
{
"OBJECT_NAME": "SECOR 3",
"OBJECT_ID": "1965-016E",
"EPOCH": "2026-11-08T06:04:20.564256",
"MEAN_MOTION": 13.96098463,
"ECCENTRICITY": 0.00229833,
"INCLINATION": 70.0796,
"RA_OF_ASC_NODE": 237.2467,
"ARG_OF_PERICENTER": 258.1524,
"MEAN_ANOMALY": 254.7955,
"EPHEMERIS_TYPE": 0,
"CLASSIFICATION_TYPE": "U",
"NORAD_CAT_ID": 1208,
"ELEMENT_SET_NO": 999,
"REV_AT_EPOCH": 13927,
"BSTAR": 0.000073270621,
"MEAN_MOTION_DOT": 4.8e-7,
"MEAN_MOTION_DDOT": 0
}