- Communications satellite
- PALAPA B4
- NORAD 21964
- 1992-027A
- Inclined geosynchronous
Current orbit
View on live mapOrbit began over the Pacific Ocean
Orbit ends over the Pacific Ocean
In view from you
Nobody watches Palapa B4 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 Palapa B4, 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 reaches you from it reaches a dish or an antenna, not an eye.
Timeline
- Launch
Launched, on the day GCAT records. Source
- Close approach
On Thursday, Oct 29 at 6:12 PM UTC, a fragment of Intelsat 33E (NORAD 62004) was to pass within 3.8 km of Palapa B4 (NORAD 21964).
Summary
Over the Pacific Ocean LIVE
Where is Palapa B4?
At 6:21:02 PM UTC Palapa B4 was over the Pacific Ocean (2.8° N, 138.7° W), 35,884 km up, moving at 3.07 km/s and in sunlight.
What is Palapa B4?
A communications satellite in an inclined geosynchronous orbit, in space since May 14, 1992.
Can I see Palapa B4?
No, not with the naked eye: no brightness has been published for Palapa B4, and nothing here estimates one; the dishes and receivers on the ground use its signals instead.
General
- Operator
- PT Telecommunications of Indonesia
- State
- Indonesia, Republic of
- Built by
- Hughes Space and Comms. Co (Hughes Satellite Systems)
- What it is
- Communications satellite
- Launched
- Mass
- 713 kg
- Operating
- Orbit class
- Inclined geosynchronous
From GCAT, Jonathan McDowell’s general catalogue, licensed CC BY 4.0: the operator, the state, the manufacturer, what it is for, the launch day, the mass, and whether it is operating. The orbit class is read from its current elements.
Latest orbital data
- Position received
- 6:21 PM UTC
- Station time (UTC)
- 6:21 PM UTC
- Latitude / longitude
- 2.8° N, 138.7° W
- Altitude
- 35,884 km
- Speed
- 3.07 km/s (11,056 km/h)
- Course
- south
- Light
- In sunlight
- Inclination
- 13.4°
- Orbital period
- 1,440.9 minutes
- Orbits per day
- 1
- This orbit
- 35,874 to 35,890 km
- In shadow
- None of this orbit
- In view from
- Within 7,950 km of the point below it
- Elements epoch
- Nov 8, 2026, 6:43 AM, 11 hours old
- Source
- Position from Space-Track orbital elements of Nov 8, 2026, 6:43 AM, 11 hours old.
No operator publishes an ephemeris for Palapa B4, so every position here comes from its orbital elements.
In orbit
- Close approaches
- 1 reported. No close approach to Palapa B4 is reported for the next three 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
Palapa B4 shares its launch, 1992-027, with 2 other bodies the catalogue lists in orbit.
| Body | What it is |
|---|---|
| DELTA 2 R/B(1) | Rocket body |
| DELTA 2 R/B(2) | 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.
Beside the others
| Satellite | Typical altitude | Orbital period | Mass | In space since |
|---|---|---|---|---|
| Palapa B4 | 35,874 to 35,890 km | 1,441 minutes | 713 kg | 1992 |
| Hispasat 30W-6 | 35,786 to 35,786 km | 1,436 minutes | about 6.1 t | 2018 |
| Amazonas Nexus | 35,786 to 35,786 km | 1,436 minutes | about 4.1 t | 2023 |
| ARSAT-1 | 35,786 to 35,786 km | 1,436 minutes | about 3 t | 2014 |
| Astra 1N | 35,786 to 35,786 km | 1,436 minutes | about 5.3 t | 2011 |
| Hotbird 13F | 35,786 to 35,786 km | 1,436 minutes | about 4.5 t | 2022 |
Data and API
The current elements from Space-Track as an OMM object, epoch Nov 8, 2026, 6:43 AM, 11 hours old.
{
"OBJECT_NAME": "PALAPA B4",
"OBJECT_ID": "1992-027A",
"EPOCH": "2026-11-08T06:43:30.735840",
"MEAN_MOTION": 0.99936122,
"ECCENTRICITY": 0.00019485,
"INCLINATION": 13.3823,
"RA_OF_ASC_NODE": 16.209,
"ARG_OF_PERICENTER": 284.9561,
"MEAN_ANOMALY": 68.7397,
"EPHEMERIS_TYPE": 0,
"CLASSIFICATION_TYPE": "U",
"NORAD_CAT_ID": 21964,
"ELEMENT_SET_NO": 999,
"REV_AT_EPOCH": 4862,
"BSTAR": 0,
"MEAN_MOTION_DOT": 9.4e-7,
"MEAN_MOTION_DDOT": 0
}