SHERPA (wahana tunda antariksa)

SHERPA adalah dispenser satelit komersial yang dikembangkan oleh Andrews Space, anak perusahaan Spaceflight Industries, dan diluncurkan pada tahun 2012. Penerbangan perdananya dilakukan pada tanggal 3 Desember 2018 dengan roket Falcon 9 Block 5, dan terdiri dari dua varian dispenser yang tidak memiliki pendorong.

Berada di atas tahap akhir peluncur, peluncuran SHERPA mengikuti penyebaran muatan  misi utama untuk penyebaran minisatelit, mikrosatelit, atau nanosatelit seperti CubeSat. SHERPA dibangun berdasarkan kemampuan Sistem Muatan Sekunder Penerbangan Antariksa (SSPS) dengan menggabungkan subsistem propulsi dan pembangkit daya, yang menciptakan tarikan propulsi yang didedikasikan untuk bermanuver ke orbit optimal guna menempatkan muatan sekunder dan muatan yang dihosting. Spaceflight Unveils SHERPA In-Space Tug. Doug Messier, Parabolic Arc. May 7, 2012.Spaceflight Secondary Payload System , retrieved 2012-05-10.Spaceflight preps for first launch of unique orbiting satellite deployers. Stephern Clarke, Spaceflight Now. 23 August 2018.

 Riwayat penerbangan 
+PenerbanganVersiTanggal / waktuPeluncurOrbitKeteranganHasil1SHERPA3 December 2018,
18:34:05F9 B5 ♺ 
B1046.3SSOThe first launch of SHERPA was on 3 December 2018 on a rideshare mission called SSO-A: SmallSat Express. The two SHERPA dispensers were originally planned to deploy more than 70 small satellites from 18 countries, which included 15 microsatellites and 56 CubeSats carried on two separate SHERPA dispensers.Introducing SSO-A: The Smallsat Express. Spaceflight Industries. Accessed: 17 November 2018. However, later changes reduced the number of satellites to 64. Both dispensers separated from the Falcon 9 rocket once it entered a polar Sun-synchronous orbit around 575 kilometers above Earth. Both dispensers in this mission lacked propulsion, but unfurled dragsails to lower their altitude as needed for sequential payload release.  The total payload mass riding on this Falcon 9 Block 5 rocket was approximately 4 metric tons (4,000 kg). 2SHERPA-FX124 January 2021
15:00F9 B5 ♺ B1058.5SSOFirst launch of SHERPA-FX. Carried 3 microsats, 10 cubesats and 2 hosted payloads as a part of Transporter-1 (SmallSat Rideshare Mission 1). 3SHERPA-FX230 June 2021
19:31F9 B5 ♺ B1060.8 SSOSecond launch of SHERPA-FX. Carried 3 microsats, 21 cubesats and 1 hosted payloads as a part of Transporter-2 (SmallSat Rideshare Mission 12).3SHERPA-LTE1First launch of SHERPA-LTE. Carried 3 microsats and 8 cubesats as a part of Transporter-2 (SmallSat Rideshare Mission 12).4SHERPA-AC125 May 2022
18:35F9 B5 ♺ B1061.8SSOFirst launch of SHERPA-AC. Carried 2 hosted payloads as a part of Transporter-5 rideshare mission. 5SHERPA-LTC25 September 2022
02:09F9 B5 ♺ B1052.7SSOStarlink Group 4-20 rideshare. Carries Boeing's Varuna-TDM as sole hosted payload. XSHERPA-LTC1CancelledF9 B5 ♺ B10xx.xSSORemoved from rideshare launch after post-integration propellant leak. 

 Lihat pula 
 Dispenser satelit
 Wahana tunda antariksa
 Roket tahap atas
 Roket multitahap
 Penerbangan antariksa

 Referensi 

Kategori:Propulsi wahana antariksa
Kategori:Dispenser satelit
Kategori:Wahana tunda antariksa