Dragon SpX-17 (CRS-17), OCO-3, STP-H6 - Falcon 9-071 (B1056.1) - CCAFS SLC-40 - 04.05.2019 06:48 UTC

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https://blogs.nasa.gov/spacex/2019/05/01/nasa-spacex-targeting-311-a-m-edt-for-crs-17-liftoff/
https://blogs.nasa.gov/kennedy/2019/05/01/crs-17-liftoff-no-earlier-than-friday-may-3-at-311-edt/

CRS-17 Liftoff No Earlier Than Friday, May 3, at 3:11 EDT

James Cawley
Posted May 1, 2019 at 1:53 pm

NASA and SpaceX are targeting no earlier than Friday, May 3, for the launch of the company's 17th commercial resupply mission to the International Space Station. Launch is scheduled for 3:11 a.m. EDT from Space Launch Complex 40 on Cape Canaveral Air Force Station in Florida.

On April 29, the space station team identified an issue with one of the station's Main Bus Switching Units (MBSU) that distributes power to two of the eight power channels on the station. There are no immediate concerns for the crew or the station.

Flight controllers are scheduled to perform a series of maneuvers to robotically swap the failed MSBU for a spare on Wednesday, May 1 and Thursday, May 2. After the swap is complete, flight controllers will conduct a series of checkouts on the newly installed MBSU and take steps to return the station to full power capability to support SpaceX capture and berthing.

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Расписание трансляций НАСА (SpX-17) - обновление от 01.05.2019

https://www.nasa.gov/multimedia/nasatv/schedule.html

NASA Television Upcoming Events
Watch NASA TV

All times Eastern

MAY
May  2, Thursday
11 a.m. – SpaceX CRS-17 Space Station Cargo Mission -- Pre-Launch News Conference (All Channels)

May 3, Friday
2:45 a.m. – Coverage of the launch of the SpaceX CRS-17 Dragon Cargo Craft Mission to the International Space Station; launch is scheduled at 3:11 a.m. ET (All Channels)
4:30 a.m. – SpaceX CRS-17 Post-Launch News Conference (time subject to change) (All Channels)

May 5, Sunday
5 a.m. - Coverage of the rendezvous and capture of the SpaceX CRS-17 Dragon Cargo Craft at the International Space Station; capture scheduled at 7 a.m. ET (All Channels)
9 a.m. - Coverage of the installation of the SpaceX CRS-17 Dragon Cargo Craft to the International Space Station (All Channels)

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https://blogs.nasa.gov/spacestation/2019/05/02/robotics-work-successful-station-returned-to-full-power/

Robotics Work Successful, Station Returned to Full Power

Dan Huot
Posted May 2, 2019 at 9:18 am
...
NASA's commercial cargo provider SpaceX is targeting 3:11 a.m. EDT on Friday, May 3, for the launch of its 17th resupply mission to the International Space Station. Packed with more than 5,500 pounds of research, crew supplies and hardware, the SpaceX Dragon spacecraft will launch on a Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Air Force Station.

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https://blogs.nasa.gov/spacex/2019/05/02/spacex-targeting-friday-may-3-at-311-a-m-for-crs-17-launch/

SpaceX Targeting Friday, May 3, at 3:11 a.m. for CRS-17 Launch

James Cawley
Posted May 2, 2019 at 9:27 am

NASA's commercial cargo provider SpaceX is targeting 3:11 a.m. EDT on Friday, May 3, for the launch of its 17th resupply mission to the International Space Station. Packed with more than 5,500 pounds of research, crew supplies and hardware, the SpaceX Dragon spacecraft will launch on a Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Air Force Station.


CRS-17 is SpaceX's 17th Commercial Resupply Services Mission to the International Space Station. It is scheduled to launch from Space Launch Complex 40 at Cape Canaveral Air Force Station on Friday, May 3, at 3:11 a.m.

This morning, Robotics Ground Controllers in Mission Control Houston successfully completed an operation to remove a failed Main Bus Switching Unit-3 and replace it with a spare. The MBSU in question had failed on April 29 and reduced the station's power supply by about 25%. There were no immediate concerns for the crew or the station. The crew had installed a series of jumpers in Node 1 following the failure to reroute power to experiments and hardware and ensure limited impact to continued station operations.

The completion of the robotics work marks the second time an MBSU was swapped out by means other than a spacewalk. Since the successful replacement, the MBSU was powered up and checked out successfully with all station systems back to nominal power configuration, including redundant power to the Canadarm2 robotic arm.

NASA TV Coverage

Follow coverage of the SpaceX CRS-17 mission with prelaunch events on NASA Television and at www.nasa.gov/live.

[/li]
• 11 a.m. — Prelaunch news conference with representatives from NASA's International Space Station Program, SpaceX and the U.S. Air Force's 45th Space Wing
• 2:45 a.m. — Follow the countdown starting at 2:45 a.m. Friday on NASA Television,nasa.gov/live and on NASA's SpaceX Launch Blog.
  

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Chris G - NSF‏ @ChrisG_NSF 6 мин. назад

Closing parts of late load operations at the pad are underway. 1,700 kg of cargo for ISS loaded in Dragon. #SpaceX #Falcon9 #Dragon #CRS17

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Chris G - NSF‏ @ChrisG_NSF 5 мин. назад

Electrical switching unit on Station replaced overnight via robotics work. Operation went well. Station in good shape now to support CRS-17 launch.

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Chris G - NSF‏ @ChrisG_NSF 4 мин. назад

NASA and SpaceX worked hard and quickly to confirm that this cargo Dragon poses no additional risk. Analysis came after Crew Dragon anomaly.


Jeff Foust‏ @jeff_foust 7 мин. назад

Hans Koenigsmann, SpaceX: just prior to testing the SuperDraco thrusters on the Crew Dragon, there was an anomaly, and the vehicle was destroyed.


Chris G - NSF‏ @ChrisG_NSF 7 мин. назад

Per Crew Dragon anomaly: Hans: "High amount of data was recorded. Too early to speculate on cause. Data indicates anomaly occurred during activation of SuperDraco. No reason at this point to believe there's an issue with SuperDraco themselves."


Jeff Foust‏ @jeff_foust 7 мин. назад

Koenigsmann: no cause yet for the anomaly, but initial data indicates the anomaly took place during the activation of the thrusters. No sign of an issue with the SuperDraco itself; high confidence with that particular thruster.

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Chris G - NSF‏ @ChrisG_NSF 8 мин. назад

If we need backup day, 02:48 EDT (0648 UTC) is the launch time for Saturday, 4 May.

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Chris G - NSF‏ @ChrisG_NSF 8 мин. назад

Hans talking about how SpaceX loadS the 2nd Stage in a little less than 16 minutes... buT they empty it, if needed, in less time.

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Chris G - NSF‏ @ChrisG_NSF 6 мин. назад

Orbital Carbon Observatory 2 (OCO-3) and Space Test Program - Houston 6 (STP-H6) are the two external ISS payloads being carried to orbit in Dragon's trunk. Dragon is 1 of only 2 crafts currently capable of taking external payloads to Station.


2 мин. назад

The OCO-3 external experiment will be placed on @JAXA_en's Kibo Lab's exposed facility. #SpaceX #Falcon9 #Dragon #CRS17

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Chris G - NSF‏ @ChrisG_NSF 3 мин. назад

Launch weather. Area of disturbed weather over Bahamas is encroaching to Space Coast. Will be near area overnight tonight. Higher than usual shower chance. Moisture near record values. Lower chance of lightning


1 мин. назад

Still a 60% NO GO chance for tonight (unchanged since yesterday). Backup opportunity on Saturday, 4 May carries just a 30% NO GO chance (again, no change from yesterday). #SpaceX #Falcon9 #Dragon #CRS17

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Слева направо:
С. Янг, Стив Кларк (оба - Spaceflight Now), Крис Г (NASASpaceflight)

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Chris G - NSF‏ @ChrisG_NSF 2 мин. назад

Precise launch time for 3 May is 03:11:33 EDT (0711.33 UTC). Could shift by a second or two based on day-off ISS position calculations.

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Chris G - NSF‏ @ChrisG_NSF 3 мин. назад

For landing the booster at sea this close to Port:

Hans, "Not as harsh on teams. Easier for teams when booster lands closer to shore. Procedure and protocol same as way out at sea landings. No change based on proximity to Port Canaveral.