Find USA 21
NORAD ID: 17506 • Int'l Des: 1987-015 • Owner: NRO/SAFSP • Country: US
MEOELLIPTICALHEO_ELLIPTICALSEMI_SYNCMOLNIYA
Historical Position — Feb 14, 2026
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About USA 21
USA 21 (NORAD 17506) is a satellite launched Feb 12, 1987 by NRO/SAFSP of US. It operates in MEO, ELLIPTICAL, HEO_ELLIPTICAL, SEMI_SYNC, MOLNIYA orbit with a mass of 800.00 kg. Last tracked position: Feb 14, 2026.
高度历史
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两行轨道根数
1 17506U 87015A 26045.14445649 -.00000778 00000-0 -21159-2 0 9998
2 17506 62.9671 273.1681 7275603 278.0632 12.4511 2.01482512 42766
Epoch: Feb 14, 2026 •
Age: 3513 hours
当前状态
Position data unavailable
发射日期 Feb 12, 1987
运行时间 39.4 years
类型 military
技术详情
分类 Payload
质量 800.00 kg
干质量 650.00 kg
总质量 800.00 kg
长度 7.00 m
直径 2.40 m
跨度 7.00 m
形状 Cyl + 2 Dish
制造商 HSES
平台类型 SDS
阶段状态 In Orbit
所有者/国家 NRO/SAFSP/US
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