现场报道：SpaceX 试图通过 Falcon 9 Starlink 任务创造现代发射周转记录

File photo a a Falcon 9 prior to a Starlink satellite delivery mission. Image: SpaceX.

在执行 Starlink 卫星发射任务之前拍摄一张猎鹰 9 号的照片。图片：SpaceX。

SpaceX is going for a double header as the end of the year approaches. A Falcon 9 rocket is set to launch the Starlink 6-36 mission from Cape Canaveral Space Force Station at 11:01 p.m. EST (0401 UTC) on Thursday.

随着年底的临近，SpaceX 将进行双头活动。猎鹰 9 号火箭将于晚上 11 点 01 分从卡纳维拉尔角太空部队站发射星链 6-36 任务。美国东部时间 (0401 UTC) 周四。

There are backup launch opportunities through 2:59 a.m. EST (0759 UTC) on Friday. This mission is also set to come on the heels of the Falcon Heavy launch, sending the X-37B military spaceplane to orbit.

美国东部时间周五凌晨 2:59（世界标准时间 0759）之前还有备份发射机会。这项任务也将在猎鹰重型发射之后进行，将 X-37B 军用航天飞机送入轨道。

If both missions stick to their planned launch times, the two launches will occur 2 hours 48 minutes and 40 seconds apart. That would mark the fastest turnaround between orbital launches from Florida since the launches of the Agena Target Vehicle and Gemini 8 on March 16, 1966, which were 1 hour 40 minutes and 59 seconds apart.

如果两次任务均按照计划的发射时间进行，则两次发射将相隔 2 小时 48 分 40 秒。这将标志着自 1966 年 3 月 16 日阿吉纳目标飞行器和双子座 8 号发射以来，佛罗里达州轨道发射之间最快的周转时间，两者相隔 1 小时 40 分 59 秒。

Spaceflight Now will have live coverage starting an hour before liftoff.

Spaceflight Now 将在升空前一小时开始进行现场报道。

Weather for the Starlink flight has a fairly positive outlook. The 45th Weather Squadron forecast shows 90 percent chance of favorable weather for liftoff with cumulus clouds being the main concern. Meteorologists are also watching upper-level wind shear.

星链航班的天气前景相当乐观。第 45 气象中队的预报显示，有 90% 的机会出现有利于升空的天气，其中积云是主要问题。气象学家也在观察高空风切变。

If needed, the launch weather in a 24-hour launch delay improves to 95 percent favorable with liftoff winds being a watch item along with upper-level wind shear. The backup window opens at 11 p.m. EST.

如果需要，24 小时发射延迟后的发射天气状况可改善至 95%，其中起飞风和高空风切变都是观察项目。备份窗口于晚上 11 点打开。美东时间。

The booster supporting this mission is tail number B1069, which is set to make its 12th flight. This will be the ninth time the booster lifts off from Space Launch Complex-40 (SLC-40). It’s other three launches were from historic Launch Complex 39A at NASA’s Kennedy Space Center.

支持此次任务的助推器尾号为B1069，预计将进行第12次飞行。这将是助推器第九次从 Space Launch Complex-40 (SLC-40) 升空。其他三次发射均在 NASA 肯尼迪航天中心历史悠久的 39A 发射场进行。

It first launched SpaceX’s 24th Commercial Resupply Services (CRS-24) mission and would go on to launch seven Starlink missions as well.

它首先发射了 SpaceX 的第 24 次商业补给服务 (CRS-24) 任务，随后还将发射七次星链任务。

About 8.5 minutes after liftoff B1069 will land back on the droneship, ‘A Shortfall of Gravitas,’ which is stationed near the Bahamas in the Atlantic Ocean.

升空后约 8.5 分钟，B1069 将降落在位于大西洋巴哈马群岛附近的无人机“A Shortfall of Gravitas”上。

The mission will be the first flight of a Falcon 9 rocket since the return of the destroyed first stage booster, tail number B1058, earlier this week. Following the first flight of B1069 two years ago, SpaceX’s Kiko Dontchev said they started introducing self-leveling landing legs to help protect booster on their return to port.

此次任务将是猎鹰 9 号火箭自本周早些时候被摧毁的第一级助推器（尾号 B1058）返回以来的首次飞行。两年前 B1069 首次飞行后，SpaceX 的 Kiko Dontchev 表示，他们开始引入自动调平着陆腿，以帮助保护助推器返回港口。