人民网北京10月28日电（赵竹青）记者从国家航天局获悉，2020年10月28日22时，在我国首次火星探测任务飞行控制团队控制下，天问一号探测器8台25N发动机同时点火工作，顺利完成第三次轨道中途修正，并在轨标定了25N发动机的实际性能。

实施第三次轨道中途修正，是为了在深空机动后，对转移轨道再次进行微量调整，使火星探测器按照预定时间与火星交会。

截至目前，天问一号已在轨飞行97天，距离地球约4400万千米，飞行路程约2.56亿千米，探测器各系统状态良好，地面测控通信各中心和台站跟踪正常。

ink="%7B%22cover%22%3A%22%22%2C%22desc%22%3A%22%22%2C%22id%22%3A%22dr6r7f_912112%22%2C%22size%22%3A30.01%2C%22width%22%3A600%2C%22height%22%3A337%2C%22url%22%3A%22https%3A%2F%2Fm1-1253159997.image.myqcloud.com%2FimageDir%2F9d0ede6750a279e54d9bf8bfbd9bb5b0.jpg%22%2C%22tags%22%3A%5B%5D%2C%22time%22%3A%22%22%2C%22mime%22%3A%22%22%7D" alt="天问一号探测器完成第三次轨道中途修正"/>

探测器调姿示意图（国家航天局供图图片：李贵良）

ink="%7B%22cover%22%3A%22%22%2C%22desc%22%3A%22%22%2C%22id%22%3A%2249bg1q_616411%22%2C%22size%22%3A42.29%2C%22width%22%3A600%2C%22height%22%3A337%2C%22url%22%3A%22https%3A%2F%2Fm1-1253159997.image.myqcloud.com%2FimageDir%2F66a915dfdb8693d213c4abe51a1389d4.jpg%22%2C%22tags%22%3A%5B%5D%2C%22time%22%3A%22%22%2C%22mime%22%3A%22%22%7D" alt="天问一号探测器完成第三次轨道中途修正"/>

探测器深空机动轨道示意图（国家航天局供图图片：李贵良）

ink="%7B%22cover%22%3A%22%22%2C%22desc%22%3A%22%22%2C%22id%22%3A%22yg6kwo_230813%22%2C%22size%22%3A34.46%2C%22width%22%3A600%2C%22height%22%3A337%2C%22url%22%3A%22https%3A%2F%2Fm1-1253159997.image.myqcloud.com%2FimageDir%2Fd5a7a588d06987306c98d31aebfd4b89.jpg%22%2C%22tags%22%3A%5B%5D%2C%22time%22%3A%22%22%2C%22mime%22%3A%22%22%7D" alt="天问一号探测器完成第三次轨道中途修正"/>

探测器深空机动轨道示意图（国家航天局供图图片：李贵良）