List of satellites which have provided data on the magnetosphere

List of US and USSR Satellites and Probes That Have Provided Data on the Geomagnetic Field

Satellite	Launch Date	Inclination of Orbital Plane to Earth's equator	Lifetime (days)	Range (γ)	Sensitivity	Distance RE
Sputnik III	5-15-58	65°	30	<60,000	5%	<1.3
Pioneer I	10-11-58	Earth impact	1	<1000	1%	3.7-7.0
Lunik I	1-2-59	Solar orbit	1	<6,000	200γ	3-6
Explorer VI	8-7-59	47°	61	<20,000	3%	2-7.5
Lunik II	9-12-59	Lunar impact	1.4	<1,500	50γ	3-6
Vanguard III	9-18-59	33	85	10,000-60,000	4γ	<1.8
Pioneer V	3-11-60	Solar orbit	50	<1,000	0.05-5γ	5-9
Explorer X	3-25-61	33	2.2	30-5,000	3γ	1.8-7
Explorer XII	8-16-61	33	112	±500	10γ	4-13.5
Alouette	9-29-62	80	Still operating	60,000	0.3%	1.17
Explorer XIV	10-3-62	33	300	±250	5γ	5-16.5

INCOMPLETE

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