航宇局计划于1983年底派航天飞机宇航员在轨道上修理早已失灵的太阳峰年卫星。这颗太阳监视卫星是1980年2月发射的,由于电子设备故障,于1981年1月停止工作。目前该卫星正在540多公里高的地球轨道上,以每秒0.8—0.9度绕其长轴旋转着,轨道高度逐渐降低。为使太阳峰年卫星得到及时修理使其继续执行观测任务到1986年,航 NASA plans to send space shuttle astronauts on the track in late 1983 to repair the already missing solar peak year satellite. The solar-monitoring satellite was launched in February 1980 and ceased operation in January 1981 due to a breakdown of electronic equipment. At present, the satellite is rotating about its long axis at or below 0.8-0.9 degrees per second in more than 540 kilometers of Earth’s orbit, and its orbital altitude is gradually decreasing. In order to make the solar peak year satellite be promptly repaired so that it continues to perform observation tasks to 1986,