SpaceX Falcon 9 - Starlink V0,9 “L0”

  SpaceX Falcon 9 Block 5 - Starlink V0,9 “L0” - Launching May 23/24, 2019

Screenshot: SpaceX Starlink V0,9 L0 May 23-24, 2019 with Tim Dodd as host

Mission Rundown: SpaceX B5 - Starlink V0.9 - “L0”

Written: January 6, 2021

Lift Off Time	May 24, 2019 - 02:30 UTC May 23, 2019 - 22:30 EDT
Mission Name	Starlink V0.9 - Aka. Launch Zero “L0” (just me)
Launch Provider	SpaceX
Customer	SpaceX
Rocket	Falcon 9 Block 5 serial number B1049-3
Launch Location	Space Launch Complex 40 - SLC-40 Cape Canaveral Air Force Station, Florida
Payload	60 Starlink V0.9 Data Relay Testbed Satellites
Payload mass	13 620 kg ~ 30 000 pounds - 227 kg each
Where are the satellites going?	Low Earth Orbit - 550 km - 341 miles - inclined 53°
Will they be attempting to recover the first stage?	Yes - OCISLY has been towed downrange along the coast
Where will the first stage land?	Of Course I Still Love You (OCISLY) located 621 km downrange near Wilmington North Carolina
Will they be attempting to recover the fairings?	Yes - Go Searcher and Go Navigator are ready to recover the fairings 737 km downrange of Carolina’s coast
Are these fairings new?	Yes - Type 2.1 lifeboat sized fairings - 34 x 17 feet with 8 ventilation ports and a heat resisting steel tip
This will be the:	– 71th flight of all Falcon 9 rockets – 21st re-flight of all Falcon 9 boosters – 15th flight of Falcon 9 Block 5 rocket – 7th re-flight of Falcon 9 Block 5 booster – 42nd SpaceX launch from SLC-40 – 39th booster landing overall – 6th mission for SpaceX in 2019
Where to watch Where to read more	SpaceX link Other Tim Dodd on Starlink V0,9 L0 May 23/24, 2019

Launch debriefing (This is what happend)

- T-00:09:44 Hosts: T 00:00:00 T+00:01:16 T+00:02:37 T+00:02:46 T+00:03:31 T+00:06:28 T+00:08:08 T+00:08:55 - T+00:45:07 T+00:46:10 - - T+01:02:40 - -

Post Launch Run Down from 3:14 then Q&A SpaceX live feed at 20:20 a little late Tom Pradario is alone tonight Liftoff at 32:11 MaxQ at 33:26 (3 sec delay on downlink camera) MECO 34:48, stage separation 34:50 SES-1 at 34:57 Faring separation at 35:41 Entry burn 38:39 by 3 Merlin 1D# for 21 seconds Landing burn 40:18 by 1 Merlin 1D# for 20 seconds? SECO at 41:06 and coasting Q&A with explanations from 42:30 SpaceX resumes live feed at 1:17:18 SES-2 - SECO-2 for 2-3 seconds gave a velocity boost from 26 226 km/h to 26 494 km/h at 1:22:42  Even more Q&A, explanations until 1:33:45 SpaceX doesn’t show deployment at 1:34:51 ish... Q&A, explanations, Kerbal and replay from 1:37:35 Rap up at 1:53:45

DM-1	FH-2 Arabsat-6A	CRS-17	Starlink V0.9 L0	RADARSAT
FH-3 - STP-2	CRS-18	Amos-17	Starlink V1.0 L1	CRS-19

Doing a magic trick with lot’s of “cards”

SpaceX will be launching 60 satellites (227 kg - 500 pounds each) on top of its workhorse Falcon 9 rocket from Space Launch Complex (SLC-40) at Cape Canaveral Space Force Station, Florida.

This will be the first test launch of SpaceX’s near-global satellite constellation – Starlink, which aims to deliver a fast, low-latency broadband internet service to locations where access has previously been unreliable, expensive, or completely unavailable.

SpaceX plans to offer service in North America by the end of 2020 and estimates that once complete, its venture will make $30-50 billion annually. The funds from which will, in turn, be used to finance its ambitious Mars program.

B1049 first flew with the Telstar 18V/Apstar-5C satellite on September 10, 2018. After launching Starlink V0.9 ‘L0’ the booster’s designation changed to B1049-3.

Telstar 18V	September 10, 2018	Starlink V0.9 L0	May 24, 2019
Iridium NEXT-8	January 11, 2019

Grafik: Geoff Barrett - Webcast screenshot

After boosting the second stage with its payload towards orbit, the first stage will perform an entry burn to slow the vehicle down in preparation for atmospheric reentry. The booster will then land 628 km downrange aboard SpaceX’s autonomous spaceport drone ship ‘Of Course I Still Love You.’

Approximately one hour and two minutes after liftoff, the Starlink satellites will begin deployment at an altitude of 440 km, where they will conduct tests. They will then use the onboard ion propulsion to first reach an operational altitude of 550 km.

About the Starlink constellation

Screenshot from Twitter and YouTube of Starlink V1.0 “House of Cards”

The Starlink V0.9 satellites have half the number of steerable faze array broadband beams, 25% data put through in each satellite and no KAA antenna system. The Starlink 0.9 in this first bunch of satellites will serve as testbeds for internet data relay and in time be retired aka. deorbited. Compared to Starlink V1.0 there is less equipment on V0.9 type.

About the deployment

Just like Jet Fighters in tight formation peel off just before landing, the 60 Starlink satellites will peel off one by one with a 6 degree separation in their first 440 km orbit. If that is a 90 minute orbit, then they will start their Ion thrusters with 90 seconds partition and enough thrust to reach their operational orbit of 550 km, where they will reignite their Ion thrusters until their orbit is circularized.

In reality it’s a Snail Race in slow motion, not like Jet Fighters peeling off one by one. Ion drive is not a fast drive and even less with cheap Krypton gas compared to Xenon gas.

To achieve initial coverage, SpaceX plans to form a net of 12 000 satellites, which will operate in conjunction with ground stations, akin to a mesh network. In addition SpaceX recently filed for FCC permission on an additional 30 000 spacecraft, which, if granted, could see the constellation amount to a lucrative 42 000.

This would octuple the number of operational satellites already in earth orbit, further raising concerns regarding the constellation's effect on the night sky and earth-based astronomy. Such mega-constellations have only recently been made possible with the advent of reusable rocketry, pioneered by SpaceX. For more information on Starlink, I recommend watching the Real Engineering video listed below.

Author: Trevor Sesnic Spaceflight entusiast link

Coauthor/Text Retriever: Johnny Nielsen link to launch list

SpaceX Falcon 9 - CRS-17

  SpaceX Falcon 9 Block 5 - CRS-17 - Launching May 4, 2019

Screenshot of CRS-17 from SpaceX

Mission Rundown: SpaceX Falcon 9 B5 - CRS-17

Written: January 8, 2021

Lift Off Time	May 4, 2019 - 06:48:58 UTC - 02:48:58 EDT
Mission Name	CRS-17
Launch Provider	SpaceX
Customer	NASA
Rocket	Falcon 9 Block 5 serial number B1056-1
Launch Location	Space Launch Complex 40 - SLC-40 Cape Canaveral Air Force Station, Florida
Payload	Cargo Dragon C113-2
Payload mass	2 481 kg ~ 5 500 pounds
Where are the Dragon going?	Low Earth Orbit to the International Space Station
Will they be attempting to recover the first stage?	Yes - OCISLY was moved just a little way from port
Where will the first stage land?	OCISLY placed just 28 km (17 miles) downrange because of the Dragon 2 test anomaly on LZ-1
Will they be attempting to recover the fairings?	No. Dragon capsules have a jettisonable nose cone  and solar panel covers on the Trunk
This will be the: The previous 38th booster landing was a partial success, but also an accidental crash because the Octagrabber couldn't secure the booster safely. It fell overboard and was lost at sea.	– 70th flight of all Falcon 9 rockets – 14th flight of Falcon 9 Block 5 booster – 8th maiden flight of a Falcon 9 Block 5 rocket – 2nd mission for this Dragon capsule C113-2 – 41st SpaceX launch from SLC-40 – 38th successful booster landing overall – 5th mission for SpaceX in 2019
Where to watch Where to read more in depth	SpaceX link Other

Launch debriefing (This is what happend) If the times given in the articles about CRS-17 are correct then the T+ are too. Local time in Florida EDT is 4 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 lack of exact seconds given by the UTC times.

- Host: T-00:14:27 T 00:00:00 T+00:01:15 T+00:02:20 T+00:02:31 T+00:02:42 T+00:03:01 T+00:06:48 T+00:07:56 T+00:08:47 T+00:09:46 T+00:12:15 T+00:13:36 - T+54:46:02 713:46:02 722:59:40

No Tim Dodd coverage on this mission Jessica Anderson doing it all on her own SpaceX live feed at 00:32 Liftoff at 15:00 - 06:48:58 UTC - May 4, 2019 MaxQ at 16:15 - 2-3 sec delay on downlink camera MECO 17:20, stage separation 17:24 SES-1 at 17:31 Boost back burn at 17:42 for 42 seconds Nose cone separation at 18:01 Entry burn 21:48 by 3 Merlin 1D# for 23 seconds Landing burn 22:55 by 1 Merlin 1D# for 34 seconds SECO at 23:46 and coasting Dragon C113-2 deployment at 24:46 Dragon solar arrays deploy at 27:15 Recap and rap up from SpaceX at 28:36 Other events during CRS-17 mission was: Berthed with ISS Harmony Nadir at 13:35:xx UTC Un-berthed 29 days later at June 3 - 12:35:xx UTC Splashdown near NRC Quest LZ at 21:48:38 UTC

DM-1	FH-2 Arabsat-6A	CRS-17	Starlink V0.9 L0	RADARSAT
FH-3 - STP-2	CRS-18	Amos-17	Starlink V1.0 L1	CRS-19

Sorry. No Geoff Barrett mission view of CRS-17 - The Falcon 9 height is wrong by 5 meters

Okay. So I’m 5 meter shorter with Dragon

SpaceX CRS-17, also known as SpX-17, was a Commercial Resupply Services mission (CRS) to the International Space Station that was launched aboard a Falcon 9 rocket on 4 May 2019. The mission was contracted by NASA and was flown by SpaceX.

SpaceX is targeting Saturday, May 4 for an instantaneous launch of its seventeenth Commercial Resupply Services mission (CRS-17) at 2:48 a.m. EDT, or 18:48 UTC, from Space Launch Complex 40 (SLC-40) at Cape Canaveral Air Force Station, Florida. Dragon will separate from Falcon 9’s second stage about 9 minutes after liftoff and attach to the space station on Monday, May 6.

The Dragon spacecraft that will support the CRS-17 mission previously supported the CRS-12 mission in August 2017. Following stage separation, SpaceX will attempt to recover Falcon 9’s first stage on the Of Course I Still Love You droneship, stationed just behind the horizon 28 km away in the Atlantic Ocean.

LZ-1 is still preoccupied with the aftermath of the Crew Dragon C204 test failure and subsequent destruction pending the NASA/FAA investigation.

The Dragon Payload

CRS-17 is the 17th commercial resupply mission, which was awarded to SpaceX in February of 2016. This is the fourth to last Commercial Resupply Mission with Dragon 1, and happens to be the 4th reuse of Dragon.

The Cargo Dragon C1133-2 is expected to arrive at the station ISS on Monday, May 6. Once it navigates into position, it will be captured by the Canadarm, and then berthed to the station a few hours later. NASA will provide a webcast of the arrival, capture and berthing.

In addition to the Cargo Dragons own 12 ton mass, there is added a total weight of the cargo of 2 482 kg (5 472 lb), consisting of 1 517 kg (3 344 lb) in the pressurized section and 965 kg in the unpressurized section. Cargo in the unpressurized section included the Orbiting Carbon Observatory 3 (OCO-3) and STP-H6.

After about 28 days Dragon will depart ISS, ditch its trunk, reenter the atmosphere and splash down in the Pacific Ocean during the day of June 3.

The return mass to Earth is 1905 kg ~ 4200 pounds as far it’s known.

SpaceX technicians open the side hatch of the Dragon vehicle and retrieve the time critical refrigerated items. The critical cargo was placed on a fast-boat for the 450 kilometers (280 miles) trip back to California for eventual direct return flight to the NASA laboratories that then took care of the precious science cargo and handled the post-flight analysis of the samples.

The rest of the cargo was unloaded once the Dragon capsule reached SpaceX's test facility in McGregor, Texas.

Author Trevor Sesnic - Some text copied from CRS-19 mission - link

Coauthor/Text Retriever Johnny Nielsen link to launch list