- DELTA 4 DEMO SPACECRAFT
- NORAD 28500
- 2004-050A
- Highly elliptical orbit
Current orbit
View on live mapOrbit began over the Laccadive Sea
Orbit ends over the Pacific Ocean
Sunlit since
Enters the Earth’s shadow
In view from you
Nobody watches Demosat 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 Demosat, 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 to see with the naked eye from anywhere on Earth.
Timeline
- Launch
Launched, on the day GCAT records. Source
Summary
Over the Pacific Ocean LIVE
Where is Demosat?
At 6:41:56 PM UTC Demosat was over the Pacific Ocean (3° N, 131° E), 31,557 km up, moving at 3.02 km/s and in sunlight.
What is Demosat?
A satellite in a highly elliptical orbit, in space since Dec 21, 2004.
Can I see Demosat?
No, not with the naked eye: no brightness has been published for Demosat, and nothing here estimates one.
General
- Operator
- Boeing Launch Services (?)
- State
- United States of America
- Built by
- Boeing Space Systems (HB)
- Launched
- Mass
- about 6 t
- Operating
- Orbit class
- Highly elliptical orbit
From GCAT, Jonathan McDowell’s general catalogue, licensed CC BY 4.0: the operator, the state, the manufacturer, the launch day, the mass, and whether it is operating. The orbit class is read from its current elements.
Latest orbital data
- Position received
- 6:41 PM UTC
- Station time (UTC)
- 6:41 PM UTC
- Latitude / longitude
- 3° N, 131° E
- Altitude
- 31,557 km
- Speed
- 3.02 km/s (10,879 km/h)
- Course
- south
- Light
- In sunlight until 8:32 AM UTC
- Inclination
- 13.6°
- Orbital period
- 1,019 minutes
- Orbits per day
- 1.41
- This orbit
- 17,886 to 36,449 km
- In shadow
- 53 minutes of each orbit
- In view from
- Within 7,840 km of the point below it
- Elements epoch
- Nov 8, 2026, 2:32 AM, 14 hours old
- Source
- Position from Space-Track orbital elements of Nov 8, 2026, 2:32 AM, 16 hours old.
No operator publishes an ephemeris for Demosat, so every position here comes from its orbital elements.
In orbit
- Close approaches
- No close approach to Demosat has been reported publicly in the past thirty days.
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
Demosat shares its launch, 2004-050, with one other body the catalogue lists in orbit.
| Body | What it is |
|---|---|
| DELTA 4 R/B | Rocket body |
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.
Data and API
The current elements from Space-Track as an OMM object, epoch Nov 8, 2026, 2:32 AM, 14 hours old.
{
"OBJECT_NAME": "DELTA 4 DEMO SPACECRAFT",
"OBJECT_ID": "2004-050A",
"EPOCH": "2026-11-08T02:32:08.592000",
"MEAN_MOTION": 1.41309944,
"ECCENTRICITY": 0.27667204,
"INCLINATION": 13.6108,
"RA_OF_ASC_NODE": 292.2282,
"ARG_OF_PERICENTER": 35.177,
"MEAN_ANOMALY": 121.9761,
"EPHEMERIS_TYPE": 0,
"CLASSIFICATION_TYPE": "U",
"NORAD_CAT_ID": 28500,
"ELEMENT_SET_NO": 999,
"REV_AT_EPOCH": 11292,
"BSTAR": 0,
"MEAN_MOTION_DOT": -0.00000112,
"MEAN_MOTION_DDOT": 0
}