Tuesday, January 30, 2018

Faulty Second Stage Sensor Scrubs SpaceX Falcon 9 Launch of GovSat-1, Reset to Jan 31: Photos

SpaceX Falcon 9 rocket carrying GovSat-1/SES-16 is poised for liftoff at pad 40 at Cape Canaveral Air Force Station.  Launch targeted for Jan. 31, 2018.  Credit: Ken Kremer/SpaceUpClose.com/www.kenkremer.com

Ken Kremer  --   SpaceUpClose.com  --   30 Jan 2018





CAPE CANAVERAL AIR FORCE STATION, FL – Todays launch of GovSat-1 on a reused SpaceX Falcon 9 rocket was scrubbed when the launch team detected a faulty sensor in the vehicles second stage about 90 minutes prior to Tuesday’s targeted launch time.

GovSat-1 was developed as a joint venture in a public-private partnership between the Government of Luxembourg and satellite operator SES. 
The faulty sensor is being replaced and forced a 24 hour postponement to Wednesday, Jan. 31.





The SpaceX launch team has rescheduled the launch to occur 1 day later within the same launch window.

“Standing down for today,” SpaceX tweeted.


“Team is going to replace a second stage sensor. Next available launch opportunity is tomorrow, January 31.”


Liftoff of the recycled single stick Falcon 9 carrying GovSat-1 is now scheduled for Wednesday, Jan. 31, 2018 at 4:25 p.m. EST (2125 GMT) from seaside Space Launch Complex-40 (SLC-40) on Cape Canaveral Air Force Station.

Extremely brisk ground winds and upper altitude winds had also threated to delay the launch. But in the end it came down to a sensor glitch.  


The weather outlook is significantly improved for Wednesday with a 90% chance of acceptable conditions vs. only 40% acceptable on Tuesday.



SpaceX Falcon 9 rocket carrying GovSat-1/SES-16 is poised for liftoff at pad 40 at Cape Canaveral Air Force Station.  Launch targeted for Jan. 31, 2018.  Credit: Ken Kremer/SpaceUpClose.com/www.kenkremer.com



The rocket will be lowered horizontal at pad 40 so technicians can swap out the bad port for a new one. After checkout it will then be raised again to vertical launch position


The two stage 229-foot-tall (70-meter-tall) SpaceX Falcon 9 rocket will deliver GovSat-1/SES-16 to a geosynchronous transfer orbit for GovSat – the SES and Luxembourg government joint venture.

GovSat-1, also known as SES-16, is the first satellite of GovSat. It is uniquely designed for exclusive use by governments and institutions – including military, humanitarian and maritime users.

The highly flexible payload featuring advanced encryption and anti-jamming capabilities.


The over 4.5 ton GovSat-1/SES-16 communications satellite launching Tuesday is a 50:50 joint venture between the Government of Luxembourg and the commercial firm SES, the worlds leading satellite operator.


SpaceX Falcon 9 rocket carrying GovSat-1/SES-16 is poised for liftoff at pad 40 at Cape Canaveral Air Force Station.  Launch targeted for Jan. 31, 2018.  Credit: Ken Kremer/SpaceUpClose.com/www.kenkremer.com


You can watch the launch live on a SpaceX dedicated webcast starting about 15 minutes prior to the 4:25 p.m. EDT (2025 GMT) liftoff time.

Watch the SpaceX broadcast live at:  SpaceX.com/webcast 

The GovSat-1 launch window at pad 40 extends for a little over two full hours. The window opens at 4:25 p.m. EST (2125 GMT) and extends until closing at 6:46 p.m. EST, or 2346 GMT.

GovSat-1 will be located at the 21.5 degrees East orbital slot. 



It will serve Europe, the Middle East and Africa, including substantial maritime coverage over the Mediterranean and Baltic seas, and the Atlantic and Indian Oceans.






In contrast to most recent launches, this ‘flight-proven’ Falcon 9 will not be recovered.

However it is equipped with a quarteet of grid fins and landing legs and will guided to carry out the descent recovery sequence and make a soft ocean landing - minus the drone ship.

The recycled first stage for the GovSat-1 mission was previously used to launch the NROL-76 spy satellite on a classified mission for the National Reconnaissance Office  (NRO) from LC-39A in May 2017.



Watch for Ken’s continuing onsite coverage of SpaceX Falcon 9 & Heavy, NASA,  ULA and more space mission reports direct from the Kennedy Space Center and Cape Canaveral Air Force Station, Florida.

Stay tuned here for Ken's continuing Earth and Planetary science and human spaceflight news: www.kenkremer.com –www.specupclose.com – twitter @ken_kremer - ken at kenkremer.com

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