Elektron 3/4

 1964-038A

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2D No. 3 (Elektron-3) was the low orbit member of the second pair. It operated for 186 days.

Elektron-3
Date	Time	Event	Orbit
1964 Jul 10		Launch by 8K72 Vostok	KB
		2D No. 3 sep from Blok-E	404 x 7025 x 60.8
1965 Jan 13		end of ops

Payload:

• Photoelectric Trapped radiation detectors (IFA/Galperin?)

• Solar cell studies

• Particles

1964-038B

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The final 2D satellite, Elektron-4, was launched on 1964 Jul 10 as the high orbit member of the second pair.

Elektron-4
Date	Time	Event	Orbit
1964 Jul 10	2151:02	Launch by 8K72 Vostok	KB
	2153	Blok BVGD sep
	2155	Blok A sep
	2155	Blok-E burn
	2200?	2D No. 3 sep from Blok-E	404 x 7025 x 60.8
	2201?	Blok-E MECO
	2202?	2D No. 4 sep from Blok-E	457 x 66261 x 60.8
1964 Jul 14			1313.86 458 x 66259 x 60.8
1965 Feb 1			1313.85 650 x 66065 x 59.8
1965 May 23		end of ops
1967 May 5			1313.81 1769 x 64946 x 58.7
1974 Jul 16			1313.47 751 x 65950 x 68.0
1976 Sep 22			1313.47 2451 x 64250 x 69.8
1979 Oct 19			1313.47 4120 x 62581 x 68.0
1982 Sep 26			1313.49 1634 x 65067 x 66.0
1983 Aug 22			1311.60 158 x 66467 x 65.9
1983 Sep 5			1293.33 95 x 65792 x 65.9
1983 Sep 8			1271.23 63 x 64925 x 65.9
1983 Sep 15		Reentered (RAE)
1983 Oct 12		Reentered? (NORAD)

Payload:

• Meteoritic dust expt

• Cosmic radio emission

• Solar x rays