ãã两ç§è½¨éçåºå«ï¼
ãã1ã轨éå¾è§ä¸å
ããå°çéæ¢è½¨éå¾è§ä¸ºé¶ï¼å³ä¸å®å¨èµ¤éå¹³é¢ä¸ï¼è
å°çåæ¥è½¨éå¹³é¢ä¸ä¸å®ã
ãã2ãçå°çç°è±¡
ããå°çéæ¢è½¨éä¸å¯¹
è§å¯è
æ¥è¯´å§ç»ä½äºç¸åä½ç½®ï¼å°çåæ¥è½¨éçå«æ对è§å¯è
æ¥è¯´ï¼æ¯å¤©ç¸åæ¶å»çæ¹åç¸åï¼ä½ä½ç½®å¯ä»¥è¿å¨ã
ãã3ãç¹è½¨è¿¹
ããå°çéæ¢å«æçæä¸ç¹è½¨è¿¹æ¯ä¸ä¸ªç¹ï¼
å°çåæ¥å«æçæä¸ç¹è½¨è¿¹æ¯ä¸æ¡8åå½¢çå°éæ²çº¿ã
ãã两ç§è½¨éçå®ä¹ï¼
ãã1ã对å°éæ¢å«æï¼
ããå形轨éä¸èµ¤éé¢éåï¼ä¸å°çåæ¥è¿è½¬ï¼å¯¹å°ç¸å¯¹éæ¢çå«æãä¹å³å¾è§ä¸ºé¶çåå½¢åæ¥å°ç轨éå«æã
ãã2ãåæ¥è½¨éå«æï¼
ããåæ¥è½¨éï¼Sun-synchronous orbit æ Heliosynchronous orbitï¼æçå°±æ¯å«æç轨éå¹³é¢å太é³å§ç»ä¿æç¸å¯¹åºå®çååï¼è½¨éçå¾è§ï¼è½¨éå¹³é¢ä¸èµ¤éå¹³é¢ç夹è§ï¼æ¥è¿90度ï¼å«æè¦å¨ä¸¤æéè¿éè¿ï¼å æ¤å称ä¹ä¸ºè¿æå°å¤ªé³åæ¥å«æ轨éã为使轨éå¹³é¢å§ç»ä¸å¤ªé³ä¿æåºå®çååï¼å æ¤è½¨éå¹³é¢æ¯å¤©å¹³åå
å°çå
¬è½¬æ¹åï¼èªè¥¿åä¸ï¼ï¼å³360度/å¹´ï¼ã