Monday, July 20, 2020

SpaceX Falcon 9 - ANASIS-II

  SpaceX Falcon 9 Block 5 - ANASIS-II - launch July 20, 2020

Screenshot from SpaceX Webcast of the launch of ANASIS-II

Mission Rundown: SpaceX Falcon 9 B5 - ANASIS-II

Written: July 29, 2021

Lift Off Time

July 20, 2020 - 21:30:00 UTC - 17:30:00 EDT

Mission Name

ANASIS-II

Launch Provider

SpaceX

Customer

Korean Agency for Defense Development

Lockheed Martin

Rocket

Falcon 9 Block 5 serial number B1058-2

Launch Location

Space Launch Complex 40 - SLC-40

Cape Canaveral Air Force Station, Florida

Payload

Eurostar E3000 military communication satellite

Payload mass

5 500 kg ~ 12 125 pounds - estimated guesswork

Where did the satellite go?

Super Synchronous Geostationary Transfer Orbit - 189 km x 45 455 km x 27.42° - Station at 124° - 130° East?

Will they be attempting to recover the first stage?

Yes - JRTI were towed due east downrange

Where will the first stage land?

Just Read The Instructions located 645 km downrange due east from SLC-40

Will they be attempting to catch the fairings?

Yes - The recovery ships Ms Tree and Ms Chief are waiting 787 km downrange due east of SLC-40

Are these fairings new?

Yes - Type 2.2 lifeboat sized fairings - 34 x 17 feet with 8 vents ports, a thermal steel tip and acoustic tiles

This will be the:

When stars align and numbers match up like pad launches and rocket landings, it looks magical - sort of.

Just a fluke of counting with 89 flights and 34 failed landings giving 55 successful landings - it also states that launches from pad 39A and SLC-4E equals 34 launches.

– 89th flight of all Falcon 9 rockets

– 36th re-flight of all Falcon 9 boosters

– 33rd flight of Falcon 9 Block 5 rocket

– 22nd re-flight of Falcon 9 Block 5 booster

– 1st double catch of fairings by recovery vessels

– 55th SpaceX launch from SLC-40

– 55th booster landing overall

– 13th mission for SpaceX in 2020

Where to watch

Where to read more

SpaceX YouTube link

Want to know or learn more link ask Tim Dodd


Launch debriefing

(This is what happend)

T-00:11:28

Hosts:

T  00:00:00

T+00:01:16

T+00:02:35

T+00:02:47

T+00:03:37

T+00:06:28

T+00:08:13

T+00:08:16

T+00:26:00

T+00:26:37

-

T+00:32:00

T+00:32:39

T+00:33:05

T+00:45:00

SpaceX live feed at 03:27

Michael Andrews and John Insprucker just looking

Liftoff at 14:57

MaxQ at 16:12

MECO 17:32, stage separation 17:37

SES-1 at 17:44 - Green TEA-TEB ignition

Fairing separation at 18:34 - Unseen

Entry burn 21:24 by 3 Merlin 1D# for 21 seconds

Landing burn 23:10 by 1 Merlin 1D# for 23 seconds

SECO at 23:13 and coasting

SpaceX resumes live feed at 40:57

SES-2 - SECO-2 in 58 seconds gave a velocity boost from 26 627 km/h to 35 835 km/h at 41:34

SpaceX resumes live feed at 46:57

SpaceX doesn’t show deployment at 47:36 - Audio only

Rap up from SpaceX at 48:02

Both fairing halves caught in the nets - ‘Hattrick’


Nobody knows anything over Korea

Monday, July 20, SpaceX launched a South Korean military communications satellite, ANASIS-II. Liftoff of the Falcon 9 Block 5 rocket occurred at 17:30 EDT - 21:30 UTC, half an hour into the launch window, after a short weather delay. The launch took place from SLC-40 at the Cape Canaveral Air Force Station in Florida. ANASIS-II will be delivered into a Geostationary Orbit (GEO) over the Korean Peninsula.

Booster B1058 was static fired on July 11, 2020. First flight of this booster was on DM-2 - SpaceX Demonstration Mission-2, launching NASA astronauts Bob Behnken and Doug Hurley to the International Space Station on May 30, 2020. Anasis-II will be B1058 second flight, which changes the booster’s designation to B1058-2.

SpaceX DM-2

May 30, 2020

ANASIS-II

July 20, 2020

About 210 seconds after launch the second stage will jettison its fairings. The fairings are expected to be recovered using SpaceX’s two recovery vessels: Go Ms. Tree and Go Ms. Chief. They were both caught in the nets.

After being jettisoned, the two fairing halves will then use cold gas thrusters to orientate themselves as they descend through the atmosphere. Once at a lower altitude, they will deploy parafoils to help them glide down to a soft landing either in the nets or in the ocean.

SpaceX is the first company to recover and reuse payload fairings. These are new Type 2.2 lifeboat sized fairings - 34 x 17 feet with 8 vents ports, a lowered square protrusion, a heat resistant thermal steel tip and acoustic tiles inside the fairings.

The Payload

ANASIS-II, previously known as KMilSatCom-1, is South Korea’s first pure military satellite. It was paid for by Lockheed Martin as part of an agreement in which the South Korean government purchased 40 F-35 fighter jets in exchange for a military communications satellite. This mission will end the country’s dependence on the Mugunghwa-5 satellite, which they currently use in conjunction with Korea Telecom.

Due to the sensitive nature of the satellite, not much is publicly known about it. We do, however, know that Lockheed subcontracted the spacecraft to Airbus, who have based it on their Eurostar E3000 satellite bus.

The spacecraft will be launched into a geostationary orbit over the Korean Peninsula to facilitate the needs of the country’s military in the region.

ANASIS-II being shipped from Airbus, Toulouse to SpaceX, Cape Canaveral prior to launch

While the mass of ANASIS-II is classified due to its military mission, other E3000 satellites range from 4500 to 6500 kilograms at launch.

ANASIS-II Geostationary slot or Station is believed to be anywhere on the 124° - 130° East longitude over the South Korean peninsula. It’s a military secret not disclosed, but this is a calculated guess from me.

Okay. I looked at the map. Happy now.

Author Ethan Cotton link

Coauthor/Text Retriever Johnny Nielsen

link to launch list


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