送交者: eddie 于 2007-11-12, 13:50:42:

回答: 土妞（此文作者有从本坛剽窃名词之嫌） 由 Amsel 于 2007-11-12, 13:25:01:

• "计算一个太空飞行器在几十年后的速度和位置" that is absolutely false. - steven (1491 bytes) 2007-11-12, 14:46:26 (182272)
  • LEO不是外太空 (无内容) - eddie (0 bytes) 2007-11-12, 15:03:06 (182278)
    • as I said, gravity of other celestial bodies, sunlight and other radiation - steven (267 bytes) 2007-11-12, 15:20:00 (182280)
      • Asteroid's trajectory is predictable, uncertainties comes from measurement. (无内容) - wc (0 bytes) 2007-11-12, 15:57:28 (182287)
        • not really, say if a comet hits the asteroid belt, - steven (199 bytes) 2007-11-12, 16:37:13 (182297)
          • why is your hypothesis related? Asteroid can be predicted - wc (340 bytes) 2007-11-12, 17:33:49 (182307)
            • It depends on your definition of prediction. - steven (513 bytes) 2007-11-12, 18:19:51 (182318)
              • You will do well in China if you pretend to be an expert you are not. - wc (259 bytes) 2007-11-12, 19:17:41 (182322)
                • Why Eros? Don't you know what NEAR program is? Near Earth Asteroid Rendezvous - steven (332 bytes) 2007-11-12, 19:37:29 (182325)
  • Agree. (无内容) - 哈哈哈 (0 bytes) 2007-11-12, 14:52:19 (182275)
• 看起来难点全在发射这一步。穿过大气层时候的微小误差，作为初值，对以后 - Amsel (58 bytes) 2007-11-12, 13:57:01 (182250)
  • no true, see the post above. (无内容) - steven (0 bytes) 2007-11-12, 14:47:19 (182273)
  • 误差不可避免。你是担心解不稳定吗？ (无内容) - 哈哈哈 (0 bytes) 2007-11-12, 14:11:00 (182257)
    • 对 (无内容) - Amsel (0 bytes) 2007-11-12, 14:16:56 (182259)
  • 出了大气层后再作轨道调整的 - eddie (104 bytes) 2007-11-12, 14:04:18 (182252)

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