At the same time, SpaceX is preparing for its second short-range low altitude test flight of its starship prototype at some time between these orbital launches. However, the second delayed launch of ulanrol-44 has put SpaceXs two launch mission dates in suspense.
Figure 2: SpaceX encapsulated saocom1b in the payload fairing of Falcon 9 earlier this month
At the same time, SpaceX is also examining and refurbishing the prototype of the Starship SN5, which has been verified by low altitude flight tests, and may plan to fly again in the near future. According to chief executive Elon Musk, SpaceXs current goal is to conduct several fast-paced prototype test flights of starships to simplify the launch of the new rocket. The 150 meter high altitude test window of SN6 lasts from 8:00 a.m. to 8:00 p.m. on August 29, the rocket may try to lift off from 10:00 a.m. to noon at the earliest.
Figure 3: starship prototype SN6 completed antifreeze test and Raptor engine static ignition test on August 16 and August 23
SpaceX launched saocom1a from California in October 2018, and saocom1b is almost identical to it. However, it is worth noting that the satellite will be launched from Florida, the first polar launch planned on the east coast of the United States in half a century. This is mainly because SpaceXs Falcon 9 rocket will swerve in flight, changing its trajectory to avoid overflying densely populated areas.
The Argentinean satellite was originally planned to be launched as early as March 30, but its launch was delayed due to limitations related to the new coronal epidemic and technical delays. The booster of the Falcon 9 rocket, which launched saocom1b, was even replaced in delay, from b1051 to b1059, as SpaceX tried to fill the gaps in the list through internal star chain missions. Now, the delay in nrol-44s technical launch has pushed the Falcon 9 mission from August 27 to the night of August 30.
Finally, before the launch of nrol-44 is delayed, the 11th SpaceX satellite launch mission is scheduled for August 30. The delay in the launch of ula increased considerable uncertainty, pushing the launch of the satellite chain satellite to September 1 at one time, and then the launch date was rescheduled to late August. Assuming SpaceX still needs to wait for the ula launch, the most likely choice is August 31, because if it is chosen on August 30, the company will need to launch twice in less than 10 hours. (small)