SpaceX Falcon 9 - CRS-20

  SpaceX Falcon 9 Block 5 - CRS-20 - Launching March 6/7, 2020

Screenshot from SpaceX Webcast of CRS-20, the last Dragon 1 to fly to ISS

Mission Rundown: SpaceX Falcon 9 Block 5 - CRS-20

Written: July 27, 2021

Lift Off Time	March 7, 2020 - 04:50:31 UTC March 6, 2020 - 23:50:31 EST
Mission Name	CRS-20
Launch Provider	SpaceX
Customer	NASA
Rocket	Falcon 9 Block 5 serial number B1059-2
Launch Location	Space Launch Complex 40 - SLC-40 Cape Canaveral Air Force Station, Florida
Payload	Cargo Dragon serial number C112-3
Payload mass	Approximately 1 977 kg ~ 4 358 pounds
Where are the Dragon going?	Low Earth Orbit - 205 km x 380 km x 51,6° on course to the International Space Station
Will they be attempting to recover the first stage?	Yes - There is enough fuel to return to launch site
Where will the first stage land?	LZ-1 at Cape Canaveral Air Force Station, Florida
Will they be attempting to recover the fairings?	No. The Dragon capsule has a jettisonable nose cone  and solar panel covers on the Trunk
This will be the: Dragon 1 have flown since June 4, 2010 as test vehicle C100, free flying Cargo Demo flights C1 and C2+ who berthd with ISS and a total of 20 launched Dragon 1 of which only one ‘CRS-07’ didn’t make it all the way to ISS and was berthd to it. 20 berths, 1 midair crash, 1 demo flight and 1 test flight attached ‘Apollo’ style.	– 82nd flight of all Falcon 9 rockets – 31st re-flight of all Falcon 9 boosters – 26th flight of Falcon 9 Block 5 rocket – 17th re-flight of Falcon 9 Block 5 booster – 22nd final free flight of Cargo Dragon 1 – 3rd Third mission for C112-3 Dragon capsule – 51st SpaceX launch from SLC-40 – 49th booster landing overall – 5th mission for SpaceX in 2020
Where to watch Where to read more in depth	SpaceX Webcast link Tim Dodd CRS-20 March 7, 2020

Launch debriefing (This is what happend) If the times given in the articles about CRS-20 are correct then so are T+. Local time in Florida EST is 5 hours earlier. Between the deorbit burn and splashdown it only took 11:22 minutes to get down to Earth. The second count is frozen due to the lack of seconds given by the UTC times.

T-00:14:27 Hosts: T 00:00:00 T+00:01:15 T+00:02:21 T+00:02:33 T+00:02:43 T+00:03:10 T+00:06:39 T+00:07:46 T+00:08:42 T+00:09:40 T+00:12:10 T+00:13:55 T+43:27:29 752:17:29 758:01:29

SpaceX live feed only at 5:29 Kate Tice and Jessica Anderson Liftoff at 19:57 - 04:50:31 UTC - March 7, 2020 MaxQ at 21:12 MECO 22:18, stage separation 22:22 SES-1 at 22:30 Boost back burn at 22:33 for 47 seconds Nose cone separation at 23:07 - Spotted flying by Entry burn 26:36 by 3 Merlin 1D# for 21 seconds Landing burn 27:43 by 1 Merlin 1D# for 32 seconds SECO at 28:39 and coasting Dragon C112-3 deployment at 29:37 Dragon solar arrays deploy at 32:07 Rap up from SpaceX at 33:52 Berthed with ISS Harmony Nadir at 12:18:xx UTC Released 31 days later at Apr. 7 - 13:08:xx UTC Splashdown near NRC Quest LZ at 18:52:xx UTC

JCSAT-18 Kacific-1	Starlink V1.0 L02	Dragon Abort Test Flight	Starlink V1.0 L03	Starlink V1.0 L04
CRS-20	Starlink V1.0 L05	Starlink V1.0 L06	Crew Dragon DM-2	Starlink V1.0 L07

Copy and lift: Mission overview of CRS-20 by Geoff Barrett

43 tons up. 33 tons down. Oh my pour back

SpaceX will be launching their cargo Dragon spacecraft to the International Space Station for NASA. The Dragon C112-3 — which has flown twice — will be launched on a Falcon 9 B1059-2 from Space Launch Complex 40 - SLC-40 at Cape Canaveral in Florida.

Launch is targeted for 23:50 p.m. EST, or 04:50 UTC on Saturday, March 7. Dragon will separate from Falcon 9’s second stage about nine minutes after liftoff and attach to the International Space Station on Monday, March 9.

The booster B1059-2 supporting this mission, CRS-20 has flown the CRS-19 mission, and will, after stage separation, perform a boost back burn, a reentry burn, and a landing burn. The booster will land on LZ-1 at Cape Canaveral Air Force Station, Florida.

CRS-19	December 5, 2019	CRS-20	March 7, 2020

B1059-2 performed a static fire test on Sunday 11:05 EDT May 1, 2020.

The Dragon spacecraft that will support the CRS-20 mission previously supported the CRS-10 mission in February 2017 and the CRS-16 mission in December 2018.

This will be the last flight of Dragon 1, concluding both the first phase of NASA’s CRS-1 contract and a big SpaceX chapter in NASA’s and American history.

Starting with CRS-21 later this year, the second phase of the contract will see the historic capsule – the first private capsule to reach orbit – replaced with a cargo variant of the new Crew Dragon spacecraft from SpaceX engineers.

The Dragon Payload

NASA contracted for the CRS-20 mission from SpaceX and therefore determines the primary payload, date of launch, and orbital parameters for the Dragon CRS.

CRS-20 carried a total of 1 977 kg (4 377 lb) of material into orbit. This included 1 509 kg (3 732 lb) of pressurized cargo with packaging bound for the International Space Station, and 468 kg (2 037 lb) of unpressurized cargo composed of:

• Science investigations: 960 kg

• Vehicle hardware: 219 kg

• Crew supplies: 273 kg

• Spacewalk equipment: 56 kg

• Computer resources: 1 kg

• Unpressurized payloads: Bartolomeo Platform 468 kg

Bartolomeo, an external payload platform developed by Airbus that will provide power and data transmission for up to 12 hosted payload slots.

GERO-ISS, which will be installed in the ESA’s Columbus module. It will conduct a climate research experiment that will use navigation satellite signals to precisely determine sea surface height.

CRS-20 is the 20th and last Commercial Resupply Service mission, which was awarded to SpaceX in February of 2016. This is the last Commercial Resupply Mission with Dragon 1, the sixth reuse of Dragon, and the 2nd time a Dragon has been reused for the third time. The Dragon C112-3 supporting this mission was previously flown on CRS-10 and CRS-16, and was the first Dragon to ever be reused.

The Cargo Dragon C112-3 is expected to arrive at the station ISS within two days after lift off. Once it navigates into position, it will be captured by the Canadarm, and then berthed to the station a few hours later. NASA TV will provide coverage of the arrival, capture and berthing. After about 30 days Dragon will depart ISS, ditch its trunk, fire its retro thrusters and  reenter the atmosphere to splash down in the Pacific Ocean.

The 20 missions by SpaceX under the CRS-1 contract carried more than 43,000 kg (94,000 pounds) of cargo to the International Space Station, and returned about 33,000 kg (74,000 pounds) of equipment and specimens to Earth, according to NASA.

SpaceX along with competing companies Orbital ATK and Sierra Nevada has entered a second Commercial Resupply Service contract with NASA which is confusingly called “CRS-2”, so don’t see it as the second operational launch of CRS-2 on March 1, 2013.

It’s just the usual bowl of American alphabet soup.

About Falcon 9 Block 5

By this fifth edit on August 17, 2022. Go to Super Source for more overview.

By this fourth edit of this page July 19, 2021 the count is now:

Block 5 boosters produced, flown, spent, destroyed, damaged or just lost.

There are 8 active Block 5 boosters, 2 Falcon Heavy sideboosters and 9 fallen, spent or crashed Block 5 boosters, who are no more. Their serial numbers are as follows:

Bold numbers are the last flight of that particular booster. First flight was in this order:

B1046-4 , B1047-3, B1048-5, B1049-9, B1050-1, B1054-1, B1051-10, B1055-1, B1052-2, B1053-2 , B1056-4, B1057-1, B1059-6, B1058-8, B1060-8, B1062-2, B1061-3, B1063-2, B1067-1, = 73

There have been a total of 67 Block 5 launches, and 2 Falcon Heavy triple launches.

I reckon, the teams building Block 5 boosters are currently building 2nd stage rockets, and that the team's building Merlin 1D# rocket engines are on Raptor engine building teams.

Author Alex Crouch link Super source: ElonX net link

Coauthor/Text Retriever Johnny Nielsen link to launch list