TWIRL 3: Rocket Lab to attempt launch of delayed mission

Starship SN10 landing in Boca Chica

Last week was quite good for SpaceX with it almost successfully landing its Starship rocket during a test, unfortunately, it caught fire and exploded on the pad. Rocket Lab also had to delay its “They Go Up So Fast” mission which we covered in This Week in Rocket Launches #2 but will make another go of it this week.

An Electron rocket taking off

Aside from Rocket Lab’s mission to put several satellites into orbit, there will be two SpaceX launches carrying more satellites for the Starlink constellation as well as a Chinese mission carrying an experimental satellite called Xin Jishu Yanzheng 6 which replaces a satellite that was lost last year.

Rocket Lab’s launch will be performed by one of its Electron rockets, it will carry the Blacksky Global satellite and several CubeSats named Centauri 3, Gunsmoke-J, M2 (A/B), Myriota 7, and Veery Hatchling. Electron rockets are very light, weighing in at just 12,500 kg; this is probably where the inspiration for the name of the mission came from. The launch will be live-streamed on the company’s website on or around Wednesday if the launch goes ahead.

A Falcon-9 rocket going into space

On Wednesday and Saturday, SpaceX will launch Falcon 9 rockets, both carrying 60 Starlink satellites. Internally, the missions are known as Starlink V1.0-L20 and Starlink V1.0-L21 respectively and the total payload mass weighs in at 15.6 tonnes with each satellite weighing 260 kg. There are 1141 Starlink satellites in orbit but the firm plans to orbit nearer 10,000 satellites eventually before ramping the number up above 30,000 so we’ll see these launches for a long time. To watch these launches, check out SpaceX’s YouTube channel which will carry recordings if you miss the live events.

Before SpaceX’s second launch, China will send up its Long March CZ-7A carrying the Xin Jishu Yanzheng 6 satellite. The satellite is experimental and a part of a series of demonstration missions being carried out by the Chinese National Space Administration (CNSA). As is typical with Chinese launches, video and photos of the launch will appear online following the launch but there likely will be no live stream.

There are plenty more rocket launches every week for the remainder of the month so be sure to look out for next week’s This Week in Rocket Launches (TWIRL).