Luna 4

*Luna 4*
Jenis misi	Pendarat Bulan
Operator	Uni Soviet
COSPAR ID	1963-008B
SATCAT no.	566
Durasi misi	12 hari (peluncuran sampai kontak terakhir)
Properti wahana
Wahana antariksa	Ye-6 No.4
Produsen	OKB-1
Massa luncur	1.422 kilogram (3.135 pon)
Daya	watts
Awal misi
Tanggal luncur	April 2, 1963, 08:04:00 UTC
Roket peluncur	Molniya-L 8K78/E6
Tempat peluncuran	Baikonur 1/5
Akhir Misi
Kontak terakhir	April 14, 1963
Parameter orbit
Sistem rujukan	Barycentric; (Sistem Bulan-Bumi)
Sumbu semi-mayor	394.128 kilometer (244.900 mi)
Eksentrisitas orbit	0.772
Ketinggian periapsis	199 kilometer (124 mi)
Ketinggian apooapsis	694.000 kilometer (431.000 mi)
Inklinasi	65.0 degrees
Periode	24.21 days
Epoch	April 2, 1963
Terbang melintasi Lunar (kegagalan pendaratan)
Posisi terdekat	April 6, 1963, 1:24 UT
Jarak	83.362 kilometer (51.799 mi)
	Luna ← Luna E-6 No.2 Luna E-6 No.5 →

Luna 4, atau E-6 No.4 (Seri Ye-6), terkadang dikenal di barat sebagai Sputnik 26, adalah sebuah wahana antariksa Soviet yang diluncurkan sebagai bagian dari Program Luna dalam rangka usaha pertama untuk melaksanakan pendaratan lunak pertama di Bulan. Setelah peluncuran yang sukses, wahan ini gagal untuk melaksanakan koreksi lintasan, sehingga melewati Bulan, dan tetap berada di orbit Bumi.

Referensi

^ ^a ^b ^c "Luna 4". NASA Space Science Data Coordinated Archive. Diakses tanggal October 22, 2019.
^ ^a ^b Krebs, Gunter. "Luna Ye-6". Gunter's Space Page. Diakses tanggal October 22, 2019.
^ ^a ^b Siddiqi, Asif A. (2018). Beyond Earth: A Chronicle of Deep Space Exploration, 1958–2016 (PDF). The NASA history series (edisi ke-second). Washington, DC: NASA History Program Office. hlm. 34. ISBN 9781626830424. LCCN 2017059404. SP2018-4041.
^ S. N. Vernov, A. Ye. Chudakov, P. V. Vakulov, Ye. V. Gorchakov, Yu. I. Logachev, G. P. Lyubimov, A. G. Nikolayev, 1964, Investigation of Radiation with the Flights of the "Mars 1" and "Luna 4" Interplanetary Automatic Stations, Cosmic Research, vol. 2, no. 4, translated from the Russian, https://apps.dtic.mil/dtic/tr/fulltext/u2/605513.pdf
^ ^a ^b ^c ^d ^e McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Diakses tanggal May 3, 2018.

[nssdc-1] "Luna 4". NASA Space Science Data Coordinated Archive. Diakses tanggal October 22, 2019.

[gunter-2] Krebs, Gunter. "Luna Ye-6". Gunter's Space Page. Diakses tanggal October 22, 2019.

[Siddiqi2018-3] Siddiqi, Asif A. (2018). Beyond Earth: A Chronicle of Deep Space Exploration, 1958–2016 (PDF). The NASA history series (edisi ke-second). Washington, DC: NASA History Program Office. hlm. 34. ISBN 9781626830424. LCCN 2017059404. SP2018-4041.

[4] S. N. Vernov, A. Ye. Chudakov, P. V. Vakulov, Ye. V. Gorchakov, Yu. I. Logachev, G. P. Lyubimov, A. G. Nikolayev, 1964, Investigation of Radiation with the Flights of the "Mars 1" and "Luna 4" Interplanetary Automatic Stations, Cosmic Research, vol. 2, no. 4, translated from the Russian, https://apps.dtic.mil/dtic/tr/fulltext/u2/605513.pdf

[satcat-5] McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Diakses tanggal May 3, 2018.

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