Tuesday , July 14 2020

SpaceX scrubs Starlink launch attempt Monday due to weather [Updated], Ars Technica

      Behave winds –

             

Launch attempt will be flown by a thrice-used first stage.

      

       Jan , (1:

(UTC UTC)

           

SpaceX

Original post : Weather-permitting, SpaceX will attempt to launch its third batch of operational Starlink satellites on Monday morning. Liftoff is scheduled for 9: (am ET) : UTC ) from Cape Canaveral Air Force Station in Florida.

However, weather is a legitimate concern. The forecast calls for a – percent chance of acceptable conditions at the surface, and there are also concerns about strong upper-level winds that may also preclude a launch. Weather conditions appear to be more favorable for a back-up launch attempt on Tuesday morning.

This will be the fourth launch of (Starlink satellites, the first of which occurred in May) . The first batch of satellites was “experimental,” and the company launched its first operational satellites on the Starlink-1 mission in November. Since then it has been flying missions at a cadence of once per month. With this flight, SpaceX will have a total of about 533 satellites on orbit. Later this year, the company hopes to begin deploying Internet service to the United States and Canada, with global coverage beginning in .

These satellites will be launched to an altitude of

(km and then will raise their orbits to an altitude of 800 km over the next one to four weeks, SpaceX said.

The “trains” of Starlink satellites have raised widespread concern in the astronomical community, whose members worry about the effect of potentially thousands of these small spacecraft on their observations. In response, SpaceX has begun experimenting with darkening treatment and will consider other measures. SpaceX founder Elon Musk has said he is sympathetic to the concerns of astronomers and will take steps to ensure the fidelity of astronomical observations.

Monday’s launch attempt will be flown by a thrice-used first stage, which previously lifted the first Starlink mission in May the Iridium-8 mission in January , and the Telstar VANTAGE mission in September . It will attempt a landing on the Of Course I Still Love You drone ship. In addition, SpaceX has deployed the Ms. Tree vessel to attempt to recover a payload fairing half. The webcast should begin about minutes before liftoff.

Starlink-3 launch.

                                 

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