# Palapa A1

> Indonesian communications satellite

**Wikidata**: [Q14914707](https://www.wikidata.org/wiki/Q14914707)  
**Source**: https://4ort.xyz/entity/palapa-a1

## Summary
Palapa A1 was Indonesia's first communications satellite, launched on July 8, 1976, to establish the nation's domestic telecommunications infrastructure. It operated in geostationary orbit until its retirement in 1985, providing critical voice and data services across Indonesia's archipelago.

## Key Facts
- Launched on July 8, 1976, at 23:31 UTC from Cape Canaveral Space Launch Complex 17A
- Weighed 574 kg at launch and 297 kg at service entry
- Part of the Palapa series of Indonesian geostationary communication satellites
- Built by Hughes Aircraft Company on the HS-333 spacecraft bus
- Operated by Telkom Indonesia using spacecraft solar arrays for power
- Had a diameter of 1.90 meters and height of 3.41 meters
- Succeeded by Palapa A2 in the satellite series
- Retired from service in June 1985 after nearly 9 years of operation

## FAQs
### Q: What was Palapa A1's primary purpose?
A: Palapa A1 was designed to provide domestic telecommunications services across Indonesia's archipelago, enabling telephone, television, and data communication links between its islands.

### Q: How long did Palapa A1 remain operational?
A: The satellite remained in service from its launch in 1976 until its retirement in June 1985, operating for approximately nine years.

### Q: Who manufactured Palapa A1?
A: Palapa A1 was built by Hughes Aircraft Company using their HS-333 spacecraft bus technology.

### Q: How was Palapa A1 launched into space?
A: It was deployed into orbit via a Delta 2000 rocket (D-125 variant) from Cape Canaveral Space Launch Complex 17A.

## Why It Matters
Palapa A1 represented a monumental leap in Indonesia's technological independence, becoming the first satellite owned and operated by a Southeast Asian nation. It solved the critical challenge of connecting the country's 17,000 islands by providing reliable long-distance communications that were previously impossible. This success established Indonesia as a pioneer in space infrastructure development, inspired similar national satellite programs across the developing world, and formed the foundation for the enduring Palapa communication network that remains essential to Indonesia's digital connectivity today.

## Notable For
- Being Indonesia's first domestically owned communications satellite, marking the nation's entry into space technology
- One of the earliest geostationary satellites launched by a developing country in the 1970s
- Designed for operational longevity, serving nearly a decade despite the era's limited satellite lifespan expectations
- Utilizing the advanced HS-333 spacecraft bus from Hughes Aircraft Company, which balanced size and capability
- Establishing the Palapa series that evolved into Indonesia's primary communication satellite constellation for decades

## Body
### Mission Profile
Palapa A1 served as the inaugural satellite in Indonesia's Palapa communication program, operated by Telkom Indonesia to provide domestic telecommunications services. Launched into geostationary orbit, it maintained a fixed position relative to Earth's surface to ensure consistent coverage across Indonesia's archipelago.

### Technical Specifications
- **Mass**: 574 kg at launch, reducing to 297 kg at service entry
- **Dimensions**: Height 3.41 m × Diameter 1.90 m
- **Power Source**: Spacecraft solar arrays
- **Orbit**: Geostationary orbit (satellite_of: geostationary orbit)
- **Spacecraft Bus**: HS-333 (Hughes Aircraft Company)
- **Manufacturer**: Hughes Aircraft Company
- **Operator**: Telkom Indonesia

### Launch and Deployment
Deployed on July 8, 1976, at 23:31 UTC from Cape Canaveral Space Launch Complex 17A using a Delta 2000 launch vehicle (D-125 variant). The satellite achieved operational status and commenced service following successful orbital insertion.

### Operational History
Palapa A1 provided telecommunications services for Indonesia from 1976 until its retirement in June 1985. Its 9-year service duration exceeded expectations for 1970s satellite technology. The satellite was succeeded by Palapa A2, maintaining continuity in the Palapa series.

### Classification and Series
- **Instance of**: Communications satellite, Geostationary satellite, Artificial satellite of the Earth
- **Series**: Palapa (part_of: Palapa)
- **COSPAR ID**: 1976-066A
- **Serial Number**: 09009
- **Successor**: Palapa A2

### Legacy
Palapa A1 established Indonesia as a significant player in space communications, demonstrating the viability of national satellite programs in developing economies. Its success validated the technical and economic models for domestic satellite networks that would be replicated globally in subsequent decades.

```json
{
  "@context": "https://schema.org",
  "@type": "Thing",
  "name": "Palapa A1",
  "description": "Indonesia's first communications satellite, launched in 1976 to provide domestic telecommunications services",
  "additionalType": [
    "communications satellite",
    "geostationary satellite",
    "artificial satellite of the Earth"
  ],
  "identifier": "09009",
  "manufacturer": "Hughes Aircraft Company",
  "launchDate": "1976-07-08T23:31:00Z",
  "launchVehicle": "Delta 2000",
  "orbitalParameters": {
    "@type": "Orbit",
    "orbitType": "geostationary"
  },
  "significantEvent": [
    {
      "@type": "Event",
      "name": "rocket launch",
      "startDate": "1976-07-08",
      "location": "Cape Canaveral Space Launch Complex 17A"
    },
    {
      "@type": "Event",
      "name": "service retirement",
      "startDate": "1985-06-00"
    }
  ]
}

## References

1. [Source](https://space.skyrocket.de/doc_sdat/palapa-a.htm)
2. Jonathan's Space Report
3. [Source](https://space.jpl.nasa.gov/msl/QuickLooks/palapaaQL.html)
4. [Source](https://planet4589.org/home/legacy/space/book/html.old/commercial_s/domsat/rim/perumtel/1976-066A.html)