Vanguard 2

Summary

Vanguard 2 is a weather satellite^[1]. It ranks in the top 8% of weather_satellite entities by monthly Wikipedia readership (56 views/month).^[2]

Key Facts

• Vanguard 2's video is recorded as 1959-02-19 Weather Eye.webm^[3].
• Vanguard 2's image is recorded as Vanguard2.jpg^[4].
• Vanguard 2's instance of is recorded as weather satellite^[5].
• Vanguard 2's instance of is recorded as artificial satellite of the Earth^[6].
• Vanguard 2's operator is recorded as United States Department of the Navy^[7].
• Vanguard 2's manufacturer is recorded as United States Naval Research Laboratory^[8].
• Vanguard 2's COSPAR ID is recorded as 1959-001A^[9].
• Vanguard 2's part of is recorded as Vanguard^[10].
• Vanguard 2's Commons category is recorded as Vanguard II^[11].
• Vanguard 2's space launch vehicle is recorded as Vanguard^[12].
• Vanguard 2's SCN is recorded as 00011^[13].
• Vanguard 2's parent astronomical body is recorded as Earth^[14].
• Vanguard 2's UTC date of spacecraft launch is recorded as +1959-02-17T00:00:00Z^[15].
• Vanguard 2's Freebase ID is recorded as /m/037vzn^[16].
• Vanguard 2's significant event is recorded as rocket launch^[17].
• Vanguard 2's orbital eccentricity is recorded as {'amount': '+0.166'}^[18].
• Vanguard 2's start point is recorded as Cape Canaveral Launch Complex 18^[19].
• Vanguard 2's orbital inclination is recorded as {'unit': 'Q28390', 'amount': '+32.88'}^[20].
• Vanguard 2's mass is recorded as {'unit': 'Q11570', 'amount': '+10.2'}^[21].
• Vanguard 2's orbital period is recorded as {'unit': 'Q7727', 'amount': '+125.6'}^[22].
• Vanguard 2's semi-major axis of an orbit is recorded as {'unit': 'Q828224', 'amount': '+8317.7'}^[23].
• Vanguard 2's apoapsis is recorded as {'unit': 'Q828224', 'amount': '+3320.6'}^[24].
• Vanguard 2's periapsis is recorded as {'unit': 'Q828224', 'amount': '+559'}^[25].
• Vanguard 2's Wolfram Language entity code is recorded as Entity["Satellite", "00011"]^[26].
• Vanguard 2's Harvard designation is recorded as 1959 Alpha 1^[27].

Why It Matters

Vanguard 2 ranks in the top 8% of weather_satellite entities by monthly Wikipedia readership (56 views/month).^[2] It has Wikipedia articles in 16 language editions, a strong signal of global cultural recognition.^[28] It is known by 3 alternative names across languages and contexts.^[29]