Voyager 2

*Voyager 2*
	Model desain pesawat ruang angkasa Voyager
Jenis misi	Eksplorasi planet
Operator	NASA / JPL
COSPAR ID	1977-076A
SATCAT no.	10271
Situs web	voyager.jpl.nasa.gov
Durasi misi	46 tahun, 10 bulan, 17 hari berlalu; Misi planet: 12 tahun, 1 bulan, 12 hari; Misi antarbintang: 34 tahun, 9 bulan, 6 hari berlalu;
Properti wahana
Produsen	Jet Propulsion Laboratory
Massa luncur	8.255 kilogram (18.199 pon)
Daya	470 watts (saat peluncuran)
Awal misi
Tanggal luncur	20 Agustus 1977, 14:29 UTC
Roket peluncur	Titan IIIE
Tempat peluncuran	Cape Canaveral LC-41
Terbang lintas Jupiter
Posisi terdekat	9 Juli 1979
Jarak	570.000 kilometer (350.000 mi)
Terbang lintas Saturnus
Posisi terdekat	26 Agustus 1981
Jarak	101.000 km (63.000 mi)
Terbang lintas Uranus
Posisi terdekat	24 Januari 1986
Jarak	81.500 km (50.600 mi)
Terbang lintas Neptunus
Posisi terdekat	25 Agustus 1989
Jarak	4.951 km (3.076 mi)
	Flagship ← Viking 2 Voyager 1 →

Voyager 2 adalah wahana antariksa nirawak yang diluncurkan oleh NASA pada 20 Agustus 1977, untuk mempelajari planet-planet luar dan medium antarbintang di luar heliosfer Matahari. Sebagai bagian dari program Voyager, wahana ini diluncurkan 16 hari sebelum kembarannya, Voyager 1, dengan lintasan yang membutuhkan waktu lebih lama untuk mencapai planet gas raksasa Jupiter dan Saturnus, namun memungkinkan pertemuan lebih lanjut dengan planet es raksasa Uranus dan Neptunus.^[4] Voyager 2 tetap menjadi satu-satunya wahana antariksa yang mengunjungi salah satu dari kedua planet es raksasa tersebut, dan merupakan wahana antariksa ketiga dari lima wahana antariksa yang berhasil mencapai kecepatan lepas dari Matahari, yang memungkinkan wahana tersebut meninggalkan Tata Surya.

^ "VOYAGER:Mission Information". NASA. 1989. Diarsipkan dari versi asli tanggal 2017-02-20. Diakses tanggal January 2, 2011.
^ "Voyager 2". US National Space Science Data Center. Diarsipkan dari versi asli tanggal March 20, 2009. Diakses tanggal August 25, 2013.
^ "VOYAGER 2". N2YO. Diakses tanggal August 25, 2013.
^ Butrica, Andrew. From Engineering Science to Big Science. hlm. 267. Diarsipkan dari versi asli tanggal February 29, 2020. Diakses tanggal September 4, 2015. Despite the name change, Voyager remained in many ways the Grand Tour concept, though certainly not the Grand Tour (TOPS) spacecraft. Voyager 2 was launched on August 20, 1977, followed by Voyager 1 on September 5, 1977. The decision to reverse the order of launch had to do with keeping open the possibility of carrying out the Grand Tour mission to Uranus, Neptune, and beyond. Voyager 2, if boosted by the maximum performance from the Titan-Centaur, could just barely catch the old Grand Tour trajectory and encounter Uranus. Two weeks later, Voyager 1 would leave on an easier and much faster trajectory, visiting Jupiter and Saturn only. Voyager 1 would arrive at Jupiter four months ahead of Voyager 2, then arrive at Saturn nine months earlier. Hence, the second spacecraft launched was Voyager 1, not Voyager 2. The two Voyagers would arrive at Saturn nine months apart, so that if Voyager 1 failed to achieve its Saturn objectives, for whatever reason, Voyager 2 still could be retargeted to achieve them, though at the expense of any subsequent Uranus or Neptune encounter.

[PDS-1] "VOYAGER:Mission Information". NASA. 1989. Diarsipkan dari versi asli tanggal 2017-02-20. Diakses tanggal January 2, 2011.

[2] "Voyager 2". US National Space Science Data Center. Diarsipkan dari versi asli tanggal March 20, 2009. Diakses tanggal August 25, 2013.

[3] "VOYAGER 2". N2YO. Diakses tanggal August 25, 2013.

[ESBS-4] Butrica, Andrew. From Engineering Science to Big Science. hlm. 267. Diarsipkan dari versi asli tanggal February 29, 2020. Diakses tanggal September 4, 2015. Despite the name change, Voyager remained in many ways the Grand Tour concept, though certainly not the Grand Tour (TOPS) spacecraft. Voyager 2 was launched on August 20, 1977, followed by Voyager 1 on September 5, 1977. The decision to reverse the order of launch had to do with keeping open the possibility of carrying out the Grand Tour mission to Uranus, Neptune, and beyond. Voyager 2, if boosted by the maximum performance from the Titan-Centaur, could just barely catch the old Grand Tour trajectory and encounter Uranus. Two weeks later, Voyager 1 would leave on an easier and much faster trajectory, visiting Jupiter and Saturn only. Voyager 1 would arrive at Jupiter four months ahead of Voyager 2, then arrive at Saturn nine months earlier. Hence, the second spacecraft launched was Voyager 1, not Voyager 2. The two Voyagers would arrive at Saturn nine months apart, so that if Voyager 1 failed to achieve its Saturn objectives, for whatever reason, Voyager 2 still could be retargeted to achieve them, though at the expense of any subsequent Uranus or Neptune encounter.

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