1964 in spaceflight (April–June)

This is a list of spaceflights launched between April and June 1964. For launches in the rest of the year, see 1964 in spaceflight (January–March), 1964 in spaceflight (July–September) and 1964 in spaceflight (October–December). For an overview of the whole year, see 1964 in spaceflight.

Launches

Date and time (UTC)	Rocket	Flight number	Launch site		LSP
	Payload (⚀ = CubeSat)	Operator	Orbit	Function	Decay (UTC)	Outcome
	Remarks
April
1 April 03:10	Kappa-8L		Kagoshima		ISAS
		ISAS	Suborbital	Aeronomy Fields	1 April	Successful
	Apogee: 100 kilometres (62 mi)
1 April 20:22	SM-65F Atlas		Cape Canaveral LC-11		US Air Force
		AFCRL	Suborbital	REV test	1 April	Successful
	Apogee: 1,400 kilometres (870 mi)
1 April	Aerobee-150 (Hi)		Walker Cay		NOTS
		NOTS	Suborbital	Radiation	1 April	Successful
	Apogee: 200 kilometres (120 mi)
2 April 02:42	Molniya-M		Baikonur Site 1/5
	Zond 1 (Venera 3MV-1 #4)		Heliocentric	Venus flyby	In orbit	Spacecraft failure
	Zond 1 SA		Intended: Heliocentric Achieved: Low Earth	Venus lander	In orbit	Spacecraft failure
	Failed to orbit
2 April	Nike-Apache		Santa Rita		CRA
		CRA	Suborbital	Test flight	2 April	Successful
	Apogee: 200 kilometres (120 mi)
2 April			Kapustin Yar		MVS
		MVS	Suborbital	Missile test	2 April	Successful
	Apogee: 200 kilometres (120 mi)
2 April			Kapustin Yar		MVS
		MVS	Suborbital	Missile test	2 April	Successful
	Apogee: 200 kilometres (120 mi)
3 April 03:48	Aerobee-150 (Hi)		White Sands LC-35		NASA
		NASA	Suborbital	UV Astronomy	3 April	Successful
	Apogee: 190 kilometres (120 mi)
3 April 20:26:22	SM-65F Atlas		Vandenberg LC-576G		Strategic Air Command
3 April 20:26:22		Strategic Air Command	Suborbital	Missile test	3 April	Launch failure
4 April 09:36	Vostok-2		Baikonur Site 31/6
4 April 09:36	Kosmos 28 (Zenit-2 #16)		Low Earth	Optical imaging	12 April	Successful
6 April 16:30:03	UGM-27 Polaris A2		USS Henry Clay, ETR		US Navy
		US Navy	Suborbital	Missile test	6 April	Successful
	Apogee: 1,000 kilometres (620 mi)
7 April 05:29	Black Brant II		Fort Churchill		NRCC
		NRCC	Suborbital	Auroral Ionospheric Micrometeoroid research	7 April	Successful
	Apogee: 155 kilometres (96 mi)
7 April 14:13	Aerobee-150 (Hi)		White Sands LC-35		KPNO
		KPNO	Suborbital	Aeronomy	7 April	Successful
	Apogee: 223 kilometres (139 mi)
8 April 01:12:56	LGM-30B Minuteman IB		Cape Canaveral LC-31B		US Air Force
		US Air Force	Suborbital	Missile test	8 April	Successful
	Apogee: 1,300 kilometres (810 mi)
8 April 07:47	Black Brant II		Fort Churchill		NRCC
		SASK	Suborbital	Auroral Aeronomy Ionospheric	8 April	Successful
	Apogee: 154 kilometres (96 mi)
8 April 08:41	R-17 Elbrus		Kapustin Yar		MVS
		MVS	Suborbital	Missile test	8 April	Successful
	Apogee: 278 kilometres (173 mi)
8 April 16:00:01	Titan II GLV		Cape Canaveral LC-19		US Air Force
	Gemini 1	NASA	Low Earth	Test flight	12 April 15:00	Successful
	Maiden flight of Titan II GLV, first orbital launch of a Titan rocket, and first flight of the Gemini programme.
9 April 14:22	Nike-Apache		Sonmiani		NASA
		SUPARCO	Suborbital	Aeronomy	9 April	Successful
	Apogee: 160 kilometres (99 mi)
9 April 21:04:50	LGM-25C Titan II		Cape Canaveral LC-15		US Air Force
		AFCRL	Suborbital	Test flight	9 April	Successful
	Apogee: 1,300 kilometres (810 mi)
10 April 04:31	Aerobee-150 (Hi)		White Sands LC-35		NASA
		NASA	Suborbital	UV Astronomy	10 April	Launch failure
	Apogee: 74 kilometres (46 mi)
10 April 06:30	Nike-Apache		Fort Churchill		NASA
		Fairbanks	Suborbital	Auroral	10 April	Successful
	Apogee: 172 kilometres (107 mi)
11 April 07:05:54	UR-200		Baikonur Site 90/19		RVSN
		RVSN	Suborbital	Missile test	11 April	Launch failure
	Apogee: 70 kilometres (43 mi)
11 April 09:19	Skylark-7C		Woomera LA-2		RAE/WRE
		Met Office	Suborbital	Aeronomy	11 April	Successful
	Apogee: 200 kilometres (120 mi)
11 April	Dragon		Hammaguira Bacchus		CNES
		CNRS	Suborbital	Aeronomy	11 April	Successful
	Apogee: 400 kilometres (250 mi)
11 April	Centaure 1		Hammaguira Bacchus		CNES
		CNRS	Suborbital	Aeronomy	11 April	Successful
	Apogee: 151 kilometres (94 mi)
12 April 09:30	Polyot		Baikonur Site 31/6
	Polyot 2 (I-151/I-2B #2)		Low Earth	ASAT test Technology	8 June 1966	Successful
	Final flight of Polyot rocket, non-intercept flight test of I-2B antisatellite weapon
13 April 19:00	LGM-30B Minuteman IB		Vandenberg LF-07		Strategic Air Command
		Strategic Air Command	Suborbital	Missile test	13 April	Successful
	Apogee: 1,300 kilometres (810 mi)
13 April	Dragon		Hammaguira Bacchus		CNES
		CNRS	Suborbital	Aeronomy	13 April	Successful
	Apogee: 425 kilometres (264 mi)
13 April	Centaure 1		Hammaguira Bacchus		CNES
		CNRS	Suborbital	Aeronomy	13 April	Successful
	Apogee: 151 kilometres (94 mi)
14 April 06:40	Nike-Apache		Fort Churchill		NASA
		Fairbanks	Suborbital	Auroral	14 April	Successful
	Apogee: 157 kilometres (98 mi)
14 April 08:32	HAD		Woomera LA-2		WRE
		WRE	Suborbital	Aeronomy	14 April	Successful
	Apogee: 121 kilometres (75 mi)
14 April 18:30	Aerobee-150 (Hi)		White Sands LC-35		NASA
		NASA	Suborbital	Aeronomy	14 April	Launch failure
	Apogee: 31 kilometres (19 mi)
14 April 21:42:25	SM-65D Atlas		Cape Canaveral LC-12		NASA
		NASA	Suborbital	REV Test	14 April	Successful
	Apogee: 837 kilometres (520 mi)
14 April	Véronique		Hammaguira Blandine		CNES
		CNRS	Suborbital	Solar	14 April	Successful
	Apogee: 119 kilometres (74 mi)
15 April 01:21:42	Nike-Apache		Ascension		NASA
		Michigan	Suborbital	Aeronomy	15 April	Successful
	Apogee: 158 kilometres (98 mi)
15 April 15:56:00	Nike-Apache		Ascension		NASA
		Michigan	Suborbital	Aeronomy	15 April	Successful
	Apogee: 158 kilometres (98 mi)
15 April 23:25	Javelin		Wallops Island		NASA
		NASA	Suborbital	Ionospheric	15 April	Successful
	Apogee: 727 kilometres (452 mi)
16 April 07:16	Black Brant II		Fort Churchill		NRCC
		SASK	Suborbital	Ionospheric Micrometeoroid research Particles	16 April	Successful
	Apogee: 152 kilometres (94 mi)
16 April 21:00:05	Nike-Apache		Wallops Island		NASA
		Urbana-Champaign	Suborbital	Ionospheric	16 April	Successful
	Apogee: 168 kilometres (104 mi)
17 April 00:44	Black Brant II		Fort Churchill		NRCC
		CBA	Suborbital	Ionospheric	17 April	Successful
	Apogee: 172 kilometres (107 mi)
17 April 23:15	Nike-Cajun		Wallops Island		NASA
		Michigan	Suborbital	Aeronomy	17 April	Successful
	Apogee: 149 kilometres (93 mi)
18 April 00:38	Nike-Cajun		Fort Churchill		NASA
		NASA	Suborbital	Aeronomy	18 April	Successful
	Apogee: 119 kilometres (74 mi)
18 April 00:59	Nike-Cajun		Wallops Island		NASA
		NASA	Suborbital	Aeronomy	18 April	Successful
	Apogee: 119 kilometres (74 mi)
20 April 08:08:28	Molniya-M		Baikonur Site 1/5
	Luna E-6 #5		Intended: Highly elliptical	Lunar flyby	20 April	Launch failure
	Luna E-6 #5 SA		Intended: Highly elliptical Achieved: Low Earth	Lunar lander	20 April	Launch failure
	Upper stage power system failed 340 seconds after launch, failed to orbit
20 April 16:30:03	UGM-27 Polaris A2		USS Henry Clay, ETR		US Navy
		US Navy	Suborbital	Missile test	20 April	Successful
	Apogee: 1,000 kilometres (620 mi)
20 April 17:00:09	UGM-27 Polaris A2		USS Henry Clay, ETR		US Navy
		US Navy	Suborbital	Missile test	20 April	Successful
	Apogee: 1,000 kilometres (620 mi)
21 April 06:15	Thor DSV-2J		Johnston LE-2		US Air Force
		US Air Force	Suborbital	ABM test	21 April	Successful
	Apogee: 778 kilometres (483 mi)
21 April 16:18	Aerobee-150 (Hi)		White Sands LC-35		NASA
		NASA	Suborbital	Ionospheric Micrometeoroid research Solar	21 April	Launch failure
	Apogee: 11 kilometres (6.8 mi)
21 April 18:50	Thor DSV-2A Ablestar		Vandenberg LC-75-1-1		US Air Force
	Transit 5BN-3	US Navy	Intended: Low Earth	Navigation	21 April	Launch failure
	Transit 5E-4	US Navy	Intended: Low Earth	Radiation	21 April	Launch failure
	Failed to orbit, Transit 5BN-3 carried a SNAP-9 RTG
21 April 23:56	Black Brant III		Fort Churchill		NRCC
		CBA	Suborbital	Test flight	21 April	Successful
	Apogee: 150 kilometres (93 mi)
21 April	MGM-31 Pershing I		Hueco		US Army
		US Army	Suborbital	Missile test	21 April	Successful
	Apogee: 250 kilometres (160 mi)
22 April 06:54	Nike-Apache		Fort Churchill		NASA
		Fairbanks	Suborbital	Auroral	22 April	Successful
	Apogee: 166 kilometres (103 mi)
23 April 11:00	LGM-30B Minuteman IB		Vandenberg LF-03		Strategic Air Command
		Strategic Air Command	Suborbital	Missile test	23 April	Successful
	Apogee: 1,300 kilometres (810 mi)
23 April 16:19	Atlas LV-3A Agena-D		Point Arguello LC-2-3		US Air Force
23 April 16:19	OPS 3743 (KH-7 #4007/AFP-206 SV-957)	US Air Force/NRO	Low Earth	Optical imaging	29 April	Successful
23 April	MGM-31 Pershing I		Hueco		US Army
		US Army	Suborbital	Missile test	23 April	Successful
	Apogee: 250 kilometres (160 mi)
24 April 20:14:17	LGM-30B Minuteman IB		Cape Canaveral LC-31B		US Air Force
		US Air Force	Suborbital	Missile test	24 April	Successful
	Apogee: 1,300 kilometres (810 mi)
25 April 06:05:26	R-17 Elbrus		Kapustin Yar		MVS
25 April 06:05:26		MVS	Suborbital	Missile test	25 April	Launch failure
25 April 10:19	Vostok-2		Baikonur Site 31/6
25 April 10:19	Kosmos 29 (Zenit-2 #19)		Low Earth	Optical imaging	3 May	Successful
25 April	Lex		CERES		ONERA
		ONERA	Suborbital	Test flight	25 April	Launch failure
	Apogee: 1 kilometre (0.62 mi)
26 April	R-36		Baikonur Site 67/22		RVSN
26 April		RVSN	Suborbital	Missile test	26 April	Launch failure
27 April 23:23:48	Thrust Augmented Thor SLV-2A Agena-D		Vandenberg LC-75-3-4		US Air Force
	OPS 2921 (KH-4A #1005)	US Air Force/NRO	Low Earth	Optical imaging	26 May 04:36	Spacecraft failure
	SRV 618	US Air Force/NRO	Low Earth	Film return
	SRV 635	US Air Force/NRO	Low Earth	Film return
	Film in forward camera broke, Agena power system failed, first SRV commanded to separate on 30 April but failed to do so, spacecraft reentered over Venezuela, with first SRV being recovered by farm workers, images damaged in landing and were unusable
27 April	UGM-133A Minuteman IA		Vandenberg LF-05		Strategic Air Command
		Strategic Air Command	Suborbital	Missile test	27 April	Successful
	Apogee: 1,300 kilometres (810 mi)
27 April	R-12 Dvina		Kapustin Yar		MVS
		MVS	Suborbital	Missile test	27 April	Successful
	Apogee: 402 kilometres (250 mi)
April	Nike-Javelin		White Sands		DASA
		DASA	Suborbital	Aeronomy	April	Successful
	Apogee: 100 kilometres (62 mi)
April	MGM-31 Pershing I		Fort Wingate		US Army
		US Army	Suborbital	Missile test	April	Successful
	Apogee: 250 kilometres (160 mi)
April	MGM-31 Pershing I		Fort Wingate		US Army
		US Army	Suborbital	Missile test	April	Successful
	Apogee: 250 kilometres (160 mi)
May
4 May	Centaure 1		Hammaguira Bacchus		CNES
		CNET	Suborbital	Test flight	4 May	Successful
	Apogee: 151 kilometres (94 mi)
6 May 16:00	Aerobee-150 (Hi)		White Sands LC-35		NRL
		NRL	Suborbital	Solar	6 May	Successful
	Apogee: 238 kilometres (148 mi)
7 May 02:31:00	Nike-Cajun		Point Mugu		US Navy
		US Navy	Suborbital	Aeronomy	7 May
	Apogee: 110 kilometres (68 mi)
7 May	LGM-30B Minuteman IB		Vandenberg LF-02		Strategic Air Command
		Strategic Air Command	Suborbital	Missile test	7 May	Successful
	Apogee: 1,300 kilometres (810 mi)
8 May	Centaure 1		Hammaguira Bacchus		CNES
		CNET	Suborbital	Test flight	8 May	Successful
	Apogee: 151 kilometres (94 mi)
10 May	Centaure 1		Hammaguira Bacchus		CNES
		GRI	Suborbital	Aeronomy	10 May	Successful
	Apogee: 151 kilometres (94 mi)
10 May	Centaure 1		Hammaguira Bacchus		CNES
		CNRS	Suborbital	Aeronomy	10 May	Successful
	Apogee: 151 kilometres (94 mi)
11 May	UGM-133A Minuteman IA		Vandenberg LF-06		Strategic Air Command
		Strategic Air Command	Suborbital	Missile test	11 May	Successful
	Apogee: 1,300 kilometres (810 mi)
12 May 11:25	Nike-Cajun		Kwajalein		US Navy
		Michigan	Suborbital	Aeronomy	12 May	Successful
	Apogee: 144 kilometres (89 mi)
12 May	Nike-Tomahawk		Barking Sands		Sandia
		Sandia	Suborbital	Aeronomy	12 May	Successful
	Apogee: 313 kilometres (194 mi)
14 May 04:31	Skylark-7C		Woomera LA-2		RAE/WRE
		RAE/WRE	Suborbital	Test flight	14 May	Successful
	Apogee: 182 kilometres (113 mi)
14 May	Nike-Tomahawk		Barking Sands		Sandia
		Sandia	Suborbital	Aeronomy	14 May	Successful
	Apogee: 313 kilometres (194 mi)
14 May	Centaure 1		Hammaguira Bacchus		CNES
		GRI	Suborbital	Aeronomy	14 May	Successful
	Apogee: 151 kilometres (94 mi)
15 May 06:56:00	UR-200		Baikonur Site 90/19		RVSN
		RVSN	Suborbital	Missile test	15 May	Successful
	Apogee: 689 kilometres (428 mi)
15 May	Nike-Tomahawk		Barking Sands		Sandia
		Sandia	Suborbital	Aeronomy	15 May	Successful
	Apogee: 325 kilometres (202 mi)
15 May	R-9 Desna		Baikonur		RVSN
		RVSN	Suborbital	Missile test	15 May	Successful
	Apogee: 1,160 kilometres (720 mi)
18 May 06:20	Nike-Apache		Eglin		US Air Force
		AFCRL	Suborbital	Test flight	18 May	Successful
	Apogee: 208 kilometres (129 mi)
18 May 06:20	Nike-Apache		Cape Canaveral		US Air Force
		AFCRL	Suborbital	Aeronomy	18 May	Successful
	Apogee: 152 kilometres (94 mi)
18 May 09:50	Voskhod		Baikonur Site 1/5
18 May 09:50	Kosmos 30 (Zenit-4 #2)		Low Earth	Optical imaging	26 May	Successful
18 May 18:35	Nike-Apache		Cape Canaveral		US Air Force
		AFCRL	Suborbital	Aeronomy	18 May	Successful
	Apogee: 190 kilometres (120 mi)
18 May	LGM-30B Minuteman IB		Vandenberg LF-03		Strategic Air Command
		Strategic Air Command	Suborbital	Missile test	18 May	Successful
	Apogee: 1,300 kilometres (810 mi)
18 May	Nike-Tomahawk		Barking Sands		Sandia
		Sandia	Suborbital	Aeronomy	18 May	Successful
	Apogee: 300 kilometres (190 mi)
19 May 06:45	Nike-Apache		Cape Canaveral		US Air Force
		AFCRL	Suborbital	Aeronomy	19 May	Successful
	Apogee: 150 kilometres (93 mi)
19 May 18:00	Nike-Apache		Cape Canaveral		US Air Force
		AFCRL	Suborbital	Aeronomy	19 May	Successful
	Apogee: 267 kilometres (166 mi)
19 May 19:21:14	Atlas LV-3A Agena-D		Point Arguello LC-2-3		US Air Force
19 May 19:21:14	OPS 3592 (KH-7 #4008/AFP-206 SV-958)	US Air Force/NRO	Low Earth	Optical imaging	22 May	Successful
20 May	Nike-Apache		White Sands		US Air Force
		US Air Force	Suborbital	Aeronomy	20 May	Successful
	Apogee: 200 kilometres (120 mi)
20 May	Nike-Tomahawk		Barking Sands		Sandia
		Sandia	Suborbital	Test flight	20 May	Successful
	Apogee: 142 kilometres (88 mi)
20 May			Kapustin Yar		MVS
		MVS	Suborbital	Missile test	20 May	Successful
	Apogee: 200 kilometres (120 mi)
20 May			Kapustin Yar		MVS
		MVS	Suborbital	Missile test	20 May	Successful
	Apogee: 200 kilometres (120 mi)
21 May	Nike-Tomahawk		Barking Sands		Sandia
		Sandia	Suborbital	Aeronomy	21 May	Successful
	Apogee: 329 kilometres (204 mi)
23 May 04:59:50	R-36		Baikonur Site 67/21		RVSN
		RVSN	Suborbital	Missile test	23 May	Launch failure
	Apogee: 870 kilometres (540 mi)
25 May 18:29:05	UGM-27 Polaris A3		USS Daniel Webster, ETR		US Navy
		US Navy	Suborbital	Missile test	25 May	Successful
	Apogee: 1,000 kilometres (620 mi)
25 May 19:15:06	UGM-27 Polaris A3		USS Daniel Webster, ETR		US Navy
		US Navy	Suborbital	Missile test	25 May	Successful
	Apogee: 1,000 kilometres (620 mi)
25 May	LGM-30B Minuteman IB		Vandenberg LF-07		Strategic Air Command
		Strategic Air Command	Suborbital	Missile test	25 May	Successful
	Apogee: 1,300 kilometres (810 mi)
25 May	Nike-Tomahawk		Barking Sands		Sandia
		LASL	Suborbital	Solar	25 May	Successful
	Apogee: 290 kilometres (180 mi)
27 May 04:30	Aerobee-150 (Hi)		White Sands LC-35		US Air Force
		AFCRL	Suborbital	X-ray astronomy	27 May	Successful
	Apogee: 245 kilometres (152 mi)
27 May	Nike-Tomahawk		Barking Sands		Sandia
		LASL	Suborbital	Solar	27 May	Successful
	Apogee: 290 kilometres (180 mi)
28 May 02:15	Nike-Apache		White Sands		NASA
		US Air Force	Suborbital	Aeronomy	28 May	Launch failure
	Apogee: 48 kilometres (30 mi)
28 May 07:32	Thor DSV-2J		Johnston LE-2		US Air Force
		US Air Force	Suborbital	ABM test	28 May	Launch failure
	Apogee: 932 kilometres (579 mi)
28 May 17:07:00	Saturn I		Cape Canaveral LC-37B		NASA
	Apollo AS-101 (BP-13)	NASA	Low Earth	Test flight	2 June 01:00	Successful
	Boilerplate Apollo spacecraft, first stage engine failure during ascent did not affect flight due to engine-out capability
28 May 23:15	Athena RTV		Green River Pad 2		US Air Force
		US Air Force	Suborbital	REV Test	28 May	Launch failure
	Apogee: 40 kilometres (25 mi)
28 May	Aerobee-150 (Hi)		Walker Cay		NOTS
		NOTS	Suborbital	Radiation	28 May	Successful
	Apogee: 200 kilometres (120 mi)
30 May 02:30:30	R-36		Baikonur Site 67/22		RVSN
		RVSN	Suborbital	Missile test	30 May	Successful
	Apogee: 864 kilometres (537 mi)
30 May 04:02:51	UR-200		Baikonur Site 90/19		RVSN
		RVSN	Suborbital	Missile test	30 May	Successful
	Apogee: 695 kilometres (432 mi)
30 May	R-16U		Baikonur		RVSN
		RVSN	Suborbital	Missile test	30 May	Successful
	Apogee: 1,210 kilometres (750 mi)
May	Nike-Javelin		White Sands		DASA
		DASA	Suborbital	Aeronomy	May	Successful
	Apogee: 100 kilometres (62 mi)
May	Nike-Javelin		White Sands		DASA
		DASA	Suborbital	Aeronomy	May	Successful
	Apogee: 100 kilometres (62 mi)
June
3 June 18:45	Nike-Apache		Wallops Island		NASA
		NASA	Suborbital	Ionospheric	3 June	Successful
	Apogee: 140 kilometres (87 mi)
3 June	R-7A Semyorka		Baikonur Site 31/6		RVSN
		RVSN	Suborbital	Missile test	3 June	Successful
	Apogee: 1,350 kilometres (840 mi)
4 June 03:50:55	Scout X-4		Point Arguello LC-D		US Air Force
	OPS 4412 (Transit 5C-1)	US Navy	Low Earth	Technology Navigation	In orbit	Successful
	Ceased operations on 23 August 1965
4 June 22:59	Thrust Augmented Thor SLV-2A Agena-D		Point Arguello LC-1-1		US Air Force
	OPS 3483 (KH-4A #1006)	US Air Force/NRO	Low Earth	Optical imaging	18 June	Successful
	SRV 638	US Air Force/NRO	Low Earth	Film return	June	Successful
	SRV 639	US Air Force/NRO	Low Earth	Film return	June	Successful
4 June 23:44	Blue Streak		Woomera LA-6A		ELDO
		ELDO	Suborbital		4 June	Successful
	Apogee: 157 kilometres (98 mi), maiden flight of Blue Streak, test for the Europa programme
4 June	Molniya		Baikonur Site 1/5
	Molniya-1 #2		Intended: Molniya	Communications Technology	4 June	Launch failure
	Block A throttle jammed closed 104 seconds after launch, failed to orbit
5 June	R-12 Dvina		Kapustin Yar		MVS
		MVS	Suborbital	Missile test	5 June	Successful
	Apogee: 402 kilometres (250 mi)
6 June 06:00	Kosmos-2I 63S1		Kapustin Yar Mayak-2
6 June 06:00	Kosmos 31 (DS-MT #2)		Low Earth	Technology	20 October	Successful
7 June	R-16U		Baikonur Site 41/4		RVSN
		RVSN	Suborbital	Missile test	7 June	Successful
	Apogee: 1,210 kilometres (750 mi)
8 June 16:34:07	UGM-27 Polaris A3		USS Daniel Webster, ETR		US Navy
		US Navy	Suborbital	Missile test	8 June	Successful
	Apogee: 1,000 kilometres (620 mi)
8 June 17:09:07	UGM-27 Polaris A3		USS Daniel Webster, ETR		US Navy
		US Navy	Suborbital	Missile test	8 June	Successful
	Apogee: 1,000 kilometres (620 mi)
8 June	Veronique 61		Hammaguira Blandine		CNES
		LRBA	Suborbital	Test flight	8 June	Successful
	Apogee: 260 kilometres (160 mi)
9 June	UGM-133A Minuteman IA		Vandenberg LF-05		Strategic Air Command
		Strategic Air Command	Suborbital	Missile test	9 June	Successful
	Apogee: 1,300 kilometres (810 mi)
10 June 05:03	Astrobee-200		Point Arguello		US Air Force
		US Air Force	Suborbital	Aeronomy	10 June	Successful
	Apogee: 343 kilometres (213 mi)
10 June 05:30	Rubis		Hammaguira Bacchus		ONERA
		ONERA	Suborbital	Test flight	10 June	Successful
	Apogee: 1,800 kilometres (1,100 mi)
10 June 10:48	Vostok-2		Baikonur Site 31/6
10 June 10:48	Kosmos 32 (Zenit-2 #18)		Low Earth	Optical imaging	18 June	Successful
10 June 12:44:59	Aerobee-150 (Hi)		White Sands LC-35		NASA
		NASA	Suborbital	Micrometeoroid research Technology	10 June	Successful
	Apogee: 155 kilometres (96 mi)
10 June 15:10:00	Nike-Apache		Wallops Island		NASA
		NASA	Suborbital	Magnetospheric	10 June	Successful
	Apogee: 146 kilometres (91 mi)
11 June 08:31	HAD		Woomera LA-2		WRE
		WRE	Suborbital	Aeronomy	11 June	Successful
	Apogee: 113 kilometres (70 mi)
11 June	UGM-133A Minuteman IA		Vandenberg LF-06		Strategic Air Command
		Strategic Air Command	Suborbital	Missile test	11 June	Successful
	Apogee: 1,300 kilometres (810 mi)
11 June	R-12 Dvina		Kapustin Yar		MVS
		MVS	Suborbital	Missile test	11 June	Successful
	Apogee: 402 kilometres (250 mi)
12 June 05:03	Rubis		Hammaguira Bacchus		ONERA
		ONERA	Suborbital	Test flight	12 June	Successful
	Apogee: 1,800 kilometres (1,100 mi)
13 June 15:47	Thrust Augmented Thor SLV-2A Agena-D		Vandenberg LC-75-1-2		US Air Force
	OPS 3236 (KH-5 #9065A)	US Air Force/NRO	Low Earth	Optical imaging	2 June 1965	Successful
	SRV 661	US Air Force/NRO	Low Earth	Film return	June	Successful
	Spacecraft carried Starflash 1A experiment
13 June	Veronique 61		Hammaguira Blandine		CNES
		LRBA	Suborbital	Test flight	13 June	Successful
	Apogee: 260 kilometres (160 mi)
15 June 12:40	LGM-30B Minuteman IB		Vandenberg LF-02		Strategic Air Command
		Strategic Air Command	Suborbital	Missile test	15 June	Successful
	Apogee: 1,300 kilometres (810 mi)
15 June	Emeraude VE121		Hammaguira Brigitte		CNES
15 June		CNES	Suborbital	Missile test	15 June	Launch failure
16 June 09:00	Aerobee-150 (Hi)		White Sands LC-35		NRL
		NRL	Suborbital	UV astronomy	16 June	Successful
	Apogee: 127 kilometres (79 mi)
17 June 01:01	Nike-Cajun		Kwajalein		US Navy
		Michigan	Suborbital	Aeronomy	17 June	Successful
	Apogee: 140 kilometres (87 mi)
17 June 04:00:31	UR-200		Baikonur Site 90/19		RVSN
		RVSN	Suborbital	Missile test	17 June	Successful
	Apogee: 694 kilometres (431 mi)
17 June	Emeraude VE121		Hammaguira Brigitte		CNES
17 June		CNES	Suborbital	Missile test	17 June	Launch failure
18 June 02:19	Nike-Cajun		Kwajalein		US Navy
		Michigan	Suborbital	Aeronomy	18 June	Successful
	Apogee: 149 kilometres (93 mi)
18 June 04:56:08	Thor SLV-2 Agena-D		Vandenberg LC-75-3-4		US Air Force
	OPS 4467A (DMSP-3A F3/P-35 #8)	US Air Force	Low Earth	Weather	In orbit	Successful
	OPS 4467B (DMSP-3A F4/P-35 #9)	US Air Force	Low Earth	Weather	In orbit	Successful
18 June 14:56:13	SM-65D Atlas		Vandenberg LC-576A-1		Strategic Air Command
		AFCRL	Suborbital	REV Test	18 June	Successful
	Apogee: 1,800 kilometres (1,100 mi)
18 June 16:30	Nike-Cajun		Kwajalein		US Navy
		Michigan	Suborbital	Aeronomy	18 June	Successful
	Apogee: 148 kilometres (92 mi)
19 June 01:29	Nike-Cajun		Kwajalein		US Navy
		US Navy	Suborbital	Aeronomy	19 June	Successful
	Apogee: 100 kilometres (62 mi)
19 June 13:46	Aerobee-150 (Hi)		White Sands LC-35		KPNO
		KPNO	Suborbital	Aeronomy	19 June	Successful
	Apogee: 124 kilometres (77 mi)
19 June 15:40	Nike-Cajun		Kwajalein		US Navy
		US Navy	Suborbital	Aeronomy	19 June	Successful
	Apogee: 100 kilometres (62 mi)
19 June 23:18	Thrust Augmented Thor SLV-2A Agena-D		Vandenberg LC-75-1-1		US Air Force
	OPS 3754 (KH-4A #1007)	US Air Force/NRO	Low Earth	Optical imaging	16 July	Successful
	SRV 634	US Air Force/NRO	Low Earth	Film return	June	Successful
	SRV 633	US Air Force/NRO	Low Earth	Film return	June/July	Successful
22 June	R-14 Usovaya		Kapustin Yar		RVSN
		RVSN	Suborbital	Missile test	22 June	Successful
	Apogee: 675 kilometres (419 mi)
23 June 10:19	Vostok-2		Baikonur Site 31/6
23 June 10:19	Kosmos 33 (Zenit-2 #20)		Low Earth	Optical imaging	1 July	Successful
23 June 18:16:03	UGM-27 Polaris A2		USS John Adams (SSBN-620), ETR		US Navy
		US Navy	Suborbital	Missile test	23 June	Successful
	Apogee: 1,000 kilometres (620 mi)
23 June 19:53:03	UGM-27 Polaris A2		USS John Adams, ETR		US Navy
		US Navy	Suborbital	Missile test	23 June	Successful
	Apogee: 1,000 kilometres (620 mi)
23 June 21:31:02	UGM-27 Polaris A2		USS John Adams, ETR		US Navy
		US Navy	Suborbital	Missile test	23 June	Successful
	Apogee: 1,000 kilometres (620 mi)
24 June 04:42:27	R-36		Baikonur Site 67/22		RVSN
		RVSN	Suborbital	Missile test	24 June	Successful
	Apogee: 874 kilometres (543 mi)
24 June 20:34	Black Brant IVA		Fort Churchill		CARDE
		CBA	Suborbital	Test flight	24 June	Launch failure
	Apogee: 467 kilometres (290 mi)
25 June 01:40:24	Scout X-4		Point Arguello LC-D		US Air Force
	ESRS (CRL-2/ENSAT)	US Air Force	Low Earth	Environmental	25 June	Launch failure
	Second stage exploded
25 June 14:57:39	Nike-Apache		Wallops Island		NASA
		NASA	Suborbital	Magnetospheric	25 June	Successful
	Apogee: 150 kilometres (93 mi)
26 June 00:52:30	Nike-Apache		Wallops Island		NASA
		NASA	Suborbital	Magnetospheric	26 June	Successful
	Apogee: 156 kilometres (97 mi)
29 June 21:00	LGM-30B Minuteman IB		Vandenberg LF-09		US Air Force
		US Air Force	Suborbital	Missile test	29 June	Successful
	Apogee: 1,300 kilometres (810 mi)
29 June	Nike-Tomahawk		Barking Sands		Sandia
29 June		Sandia	Suborbital	Aeronomy	29 June	Launch failure
29 June	Dong Feng 2		Jiuquan LA-3		PLA
		PLA	Suborbital	Missile test	29 June	Successful
	Apogee: 200 kilometres (120 mi)
30 June 00:00	UGM-133A Minuteman IA		Vandenberg LF-04		Strategic Air Command
		Strategic Air Command	Suborbital	Missile test	30 June	Successful
	Apogee: 1,300 kilometres (810 mi)
30 June 14:04:22	Atlas LV-3C Centaur-C		Cape Canaveral LC-36A		NASA
		NASA	Intended: Geosynchronous transfer	Test flight	30 June	Launch failure
	Maiden flight of Atlas LV-3C Centaur-C, Centaur hydraulic system failed
30 June 22:30:04	R-36		Baikonur Site 67/22		RVSN
		RVSN	Suborbital	Missile test	30 June	Successful
	Apogee: 872 kilometres (542 mi)
June	Nike-Apache		White Sands		US Army
		US Army	Suborbital	Aeronomy	June	Successful
	Apogee: 100 kilometres (62 mi)
June	Nike-Apache		White Sands		US Army
		US Army	Suborbital	Target	June	Successful
	Apogee: 100 kilometres (62 mi)
June	Nike-Javelin		White Sands		DASA
		DASA	Suborbital	Aeronomy	June	Successful
	Apogee: 100 kilometres (62 mi)
June	R-14 Usovaya		Kapustin Yar		RVSN
		RVSN	Suborbital	Missile test	June	Successful
	Apogee: 675 kilometres (419 mi)

gollark: They're bad at it and it would not be easier if you could just spin off new threads at random. There would also probably be issues with synchronization overhead.

gollark: No, that would cause horrible race conditions constantly.

gollark: Anyway, threads and the various synchronization primitives in C (or, well, commonly used with C?) are not a particularly good model for concurrency given the many, many bugs created through use of such things, as opposed to actor models and whatever.

gollark: What? That makes no sense.

gollark: Yes, but there's no performance benefit, you can just run multiple programs.

References

Generic references:

Spaceflight portal

Bergin, Chris. "NASASpaceFlight.com".
Clark, Stephen. "Spaceflight Now".
Kelso, T.S. "Satellite Catalog (SATCAT)". CelesTrak.
Krebs, Gunter. "Chronology of Space Launches".
Kyle, Ed. "Space Launch Report".
McDowell, Jonathan. "Jonathan's Space Report".
Pietrobon, Steven. "Steven Pietrobon's Space Archive".
Wade, Mark. "Encyclopedia Astronautica".
Webb, Brian. "Southwest Space Archive".
Zak, Anatoly. "Russian Space Web".
"ISS Calendar". Spaceflight 101.
"NSSDCA Master Catalog". NASA Space Science Data Coordinated Archive. NASA Goddard Space Flight Center.
"Space Calendar". NASA Jet Propulsion Laboratory.
"Space Information Center". JAXA.
"Хроника освоения космоса" [Chronicle of space exploration]. CosmoWorld (in Russian).

Footnotes

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1964 in spaceflight (April–June)

Launches

April

May

June

References

Footnotes