Telkom-4
 Telkom-4 Merah Putih satellite | |
| Names | Merah Putih |
|---|---|
| Mission type | Communications |
| Operator | PT Telekomunikasi Indonesia Tbk |
| COSPAR ID | 2018-064A [1] |
| SATCAT no. | 43587 |
| Website | https://telkomsat.co.id/id/ |
| Mission duration | 16 years (planned) 6 years, 3 months and 5 days (in progress) |
| Spacecraft properties | |
| Spacecraft | Merah Putih |
| Spacecraft type | SSL 1300 |
| Bus | LS-1300 |
| Manufacturer | Space Systems/Loral |
| Launch mass | 5,800 kg (12,800 lb) [2] |
| Dry mass | 2,000 kg (4,400 lb) |
| Start of mission | |
| Launch date | 7 August 2018, 05:18 UTC |
| Rocket | Falcon 9 Block 5, B1046.2 |
| Launch site | Cape Canaveral, SLC-40 |
| Contractor | SpaceX |
| Entered service | October 2018 |
| Orbital parameters | |
| Reference system | Geocentric orbit[3] |
| Regime | Geostationary orbit |
| Longitude | 108° East |
| Transponders | |
| Band | 60 C-Band |
| Coverage area | Indonesia, Southeast Asia, South Asia, India |
Telkom 4, also known as Merah Putih, is an Indonesian geostationary communication satellite built by Space Systems/Loral that is located at an orbital position of 108° East and is operated by PT Telekomunikasi Indonesia Tbk. The satellite is based on the SSL 1300 satellite bus and has a life expectancy of 16 years. It was launched on 7 August 2018, at 05:18 UTC or 12:18 Jakarta Time, using the SpaceX Falcon 9 Block 5 launcher from Cape Canaveral Air Force Station, Florida, United States.[4][5]
Satellite description
[edit]This satellite carries 60 active transponders consisting of 24 C-Band transponders and 12 Extended C-Band transponders which will serve the Southeast Asia region, including Indonesia, as well as 24 C-Band transponders which will reach the South Asia region. The satellite relies on the SSL 1300 satellite bus with a design life of 16 years with up to 21 years of fuel remaining. The development of the Merah Putih Satellite involves two U.S. companies, namely SSL as a satellite manufacturer and SpaceX as a launch service provider. The total mass of the satellite is 5,800 kilograms (12,800 lb). Telkom-4 is devoted to serving high-definition television (HDTV) broadcasts, GSM and Internet services.
Launch
[edit]Telkom-4 was launched using the SpaceX Falcon 9 Block 5 first stage B1046.2 from Cape Canaveral Air Force Station (CCAFS), Florida, United States on 7 August 2018, at 01:18 UTC. The launch was the first time SpaceX reused one of the Block 5 variant of the Falcon 9 rocket boosters.[6] After successfully separating from the second stage, the first stage landed on the SpaceX drone ship Of Course I Still Love You.
Project cost
[edit]The launch of the Telkom-4 (Merah Putih) satellite saves around 25% of the cost of launching the previous satellite, the Telkom-3S satellite, which was launched on 15 February 2017, which cost US$215 million. Meanwhile, the Merah Putih satellite only costs US$165 million and includes insurance costs of US$10 million.[7]
Service users
[edit]Due to the inadequacy of the Palapa-D satellite to operate until July 2020, while the replacement satellite, Nusantara Dua (Palapa N1),[8] failed to reach orbit, many TV and radio channels migrated from Palapa-D to Telkom-4.[9] Below is a list of frequency of channels that have migrated as of July 2020:[10]
References
[edit]
- ^ "Telkom 4 2018-064A". Nasa. 13 April 2021. Retrieved 27 April 2021.
- ^ "Telkom 4 (Merah Putih)". Gunter's Space Page. Retrieved 27 April 2021.
- ^ "Telkom-4". N2YO.com. Retrieved 27 April 2021.
- ^ "LAPORAN DARI FLORIDA AS: Satelit Merah Putih Sukses Mengangkasa". industri.bisnis.com (in Indonesian). Retrieved 7 August 2018.
- ^ Luciana, Anisa (6 August 2018). "Besok, Satelit Merah Putih Telkom Diluncurkan dari Florida AS". Tempo (in Indonesian). Retrieved 7 August 2018.
- ^ Utomo, Happy Ferdian Syah. "Ini Kata Elon Musk soal Peluncuran Satelit Merah Putih". liputan6.com (in Indonesian). Miami: Liputan6.com. Retrieved 7 August 2018.
- ^ Luciana, Anisa (6 August 2018). "Besok, Satelit Merah Putih Telkom Diluncurkan dari Florida AS". Tempo (in Indonesian). Retrieved 7 August 2018.
- ^ "Roket China Gagal Bawa Satelit Palapa N1 Hancur Berkeping" (in Indonesian). CNBC Indonesia. Retrieved 17 August 2020.
- ^ "Nusantara dua Gagal Capai Orbit Palapa-D masih Beroperasi" (in Indonesian). Detik. Retrieved 11 April 2020.
- ^ "Telkom-4 at 108° E". Lyngsat. Retrieved 4 August 2020.
External links
[edit]- Telkom Group – Official Website PT.Telekomunikasi Indonesia.tbk
- Telkomsat – Satellite Operator's Official Website
- Lyngsat Telkom-4 at 108.0°E – channel frequency list