File photo of a SpaceX Falcon 9 rocket on the launch pad at Vandenberg Space Force Base, California. Credit: SpaceX

资料照片：加利福尼亚州范登堡太空部队基地发射台上的 SpaceX 猎鹰 9 号火箭。图片来源：SpaceX

SpaceX will make another attempt to launch a Falcon 9 from the West Coast with a batch of 22 Starlink satellites at 10:33 p.m. PST Sunday (1:33 a.m. EST / 0633 UTC Monday).

SpaceX 将于晚上 10 点 33 分再次尝试从西海岸发射猎鹰 9 号火箭，运载一批 22 颗星链卫星。太平洋标准时间周日（东部标准时间凌晨 1:33/世界标准时间周一 0633）。

Early Sunday morning, a countdown for the Falcon 9 was halted with just minutes left on the clock. SpaceX said it was “standing down” in a social media post about seven minutes after the planned liftoff time. It did not provide a reason for the aborted launch attempt. The Starlink 7-7 mission had already been delayed by a day.

周日清晨，猎鹰 9 号的倒计时在时间还剩几分钟时停止。 SpaceX 在社交媒体帖子中表示，在计划的发射时间大约七分钟后，该公司将“暂停”。它没有提供发射尝试中止的原因。星链7-7号任务已经推迟了一天。

On this 55th Starlink delivery mission of the year, the Falcon 9 will head in a south-easterly direction after lifting off from Space Launch Complex 4E at Vandenberg Space Force Base in California targeting a 183×178 mile (295×286 km) orbit, inclined at 53 degrees to the equator.

在今年的第 55 次星链发射任务中，猎鹰 9 号将从加利福尼亚州范登堡太空部队基地的 4E 号航天发射场升空后向东南方向飞行，目标轨道为 183×178 英里（295×286 公里），与赤道倾斜53度。

Spaceflight Now will provide live coverage of Falcon 9 liftoff in our Launch Pad Live stream.

Spaceflight Now 将在我们的发射台直播中直播猎鹰 9 号升空的情况。

The first stage booster, making its 15th flight, previously launched the Sentinel-6 Michael Freilich, DART, Transporter-7, Iridium OneWeb and the Space Development Agency Tranche 0B missions. Plus nine previous Starlink delivery missions. After completing its burn, the first stage will land on the drone ship ‘Of Course I still Love You’ stationed about 400 miles downrange (644km) in the Pacific Ocean off the coast of Baja California.

第一级助推器进行了第 15 次飞行，此前曾发射过 Sentinel-6 Michael Freilich、DART、Transporter-7、Iridium OneWeb 和太空发展局 Tranche 0B 任务。加上之前的九次星链传送任务。完成燃烧后，第一阶段将降落在“当然我仍然爱你”号无人船上，该船驻扎在下加利福尼亚州海岸附近的太平洋下游约 400 英里（644 公里）处。

If all goes according to plan, deployment of the 22 V2 Mini Starlink satellites will occur just over an hour after launch. The V2 Mini model was introduced earlier this year and is much larger than the V1.5 satellites. Equipped with upgraded antennae and larger solar panels, the latest models can delivery four times the bandwidth of the previous satellites.

如果一切按计划进行，22 颗 V2 迷你星链卫星的部署将在发射后一个多小时内完成。 V2 Mini 型号于今年早些时候推出，比 V1.5 卫星大得多。最新型号配备了升级的天线和更大的太阳能电池板，可以提供以前卫星四倍的带宽。

SpaceX recently announced it had signed up over two million subscribers in more than 60 countries for its Starlink internet service. Since 2019 it has launched 5,445 satellites according to statistics compiled by Jonathan McDowell, an astronomer at the Harvard-Smithsonian Center for Astrophysics, who maintains a space flight database. Of those satellites 5,078 remain in orbit and 5,041 appear to be working normally.

SpaceX 最近宣布，其 Starlink 互联网服务已在 60 多个国家/地区签约超过 200 万订户。根据哈佛-史密森天体物理中心天文学家乔纳森·麦克道尔 (Jonathan McDowell) 编制的统计数据，自 2019 年以来，它已发射了 5,445 颗卫星，该中心维护着一个太空飞行数据库。其中 5,078 颗卫星仍在轨道上，5,041 颗似乎工作正常。