Author Topic: SpaceX F9 : CRS SpX-18 : July 2019  (Read 3776 times)

Offline gongora

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SpaceX F9 : CRS SpX-18 : July 2019
« on: 12/15/2018 12:21 am »
CRS-18 Discussion thread

NSF Threads for CRS-18 : Discussion
NSF Articles for CRS-18 :

NSF Articles for CRS missions :  https://www.nasaspaceflight.com/?s=CRS

Launch 2019 on Falcon 9 from (SLC-40?) at Cape Canaveral. RTLS landing is expected.



External cargo: IDA-3



Other SpaceX resources on NASASpaceflight:
   SpaceX News Articles (Recent)  /   SpaceX News Articles from 2006 (Including numerous exclusive Elon interviews)
   SpaceX Dragon Articles  /  SpaceX Missions Section (with Launch Manifest and info on past and future missions)
   L2 SpaceX Section
« Last Edit: 02/21/2019 02:40 pm by gongora »

Offline gongora

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Re: SpaceX F9 : CRS SpX-18 : May 2019
« Reply #1 on: 12/15/2018 01:01 am »
RFTSat (1007-EX-CN-2018)
Quote
The RFTSat CubeSat will be launched as a payload on a Falcon 9 launch vehicle executing the SpX-18 cargo mission for the International Space Station. The RFTSat CubeSat will then be deployed at a to-be-determined later date by a Cygnus vehicle departing the International Space Station.
The current launch date is projected to be May 7th, 2019
...
Overview
The goal of the Radio Frequency Tag Satellite (RFTSat) mission is to develop and demonstrate the first space-based 5.8GHz RF backscattering communications system. It will allow a wireless passive RF tag to harvest RF energy transmitted through space from
an RF reader on the spacecraft, store that energy in a supercapacitor, and power an MCU and various sensors on the tag. Then the collected sensor data will be transmitted back to the reader by modulating this information on the backscattered RF signal. This tag will be mounted at the end of an unfurling carbon fiber boom and will be used to measure accelerations, temperature, and radiation TID at a distance of about 1 m from the reader. All data will be downlinked to earth via GlobalStar satellite network.

Offline Comga

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Re: SpaceX F9 : CRS SpX-18 : May 2019
« Reply #2 on: 12/15/2018 01:54 pm »
RFTSat (1007-EX-CN-2018)
Quote
The RFTSat CubeSat will be launched as a payload on a Falcon 9 launch vehicle executing the SpX-18 cargo mission for the International Space Station. The RFTSat CubeSat will then be deployed at a to-be-determined later date by a Cygnus vehicle departing the International Space Station.
The current launch date is projected to be May 7th, 2019
...

How is that deployment possible?
Post departure deployments from Cygnus have been done from external deployers.
CubeSats carried on SpaceX CRS missions have gone as internal cargo and have been deployed thru the JEM airlock.
External transfer between these systems doesn’t make sense, which contributes to why it hasn’t been demonstrated.
The only way I can see this working is if they bring it back on the Dragon after some testing on orbit and ship it to MARS to be loaded onto the Cygnus before encapsulation and launch.
Unless there are two RFTSats
What kind of wastrels would dump a perfectly good booster in the ocean after just one use?

Offline Bob Shaw

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Re: SpaceX F9 : CRS SpX-18 : May 2019
« Reply #3 on: 12/15/2018 02:31 pm »
There's a new deployer system on this Cygnus which fits into the hatch (so far as I can make out). Cygnus will go to a higher orbit to deploy, then will be deorbited. This method will also be available in future if all goes well.

Offline gongora

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Re: SpaceX F9 : CRS SpX-18 : May 2019
« Reply #4 on: 12/15/2018 02:59 pm »
These are references to the new deployer use with the current SpX-16 and NG-10 missions:

https://blogs.nasa.gov/spacestation/2018/12/08/dragon-attached-to-station-returns-to-earth-in-january/
Quote
A small satellite deployment mechanism, called SlingShot, will be ride up in Dragon and then be installed in a Northrop Grumman Cygnus spacecraft prior to its departure from the space station. SlingShot can accommodate as many as 18 CubeSats of any format. After the Cygnus cargo ship departs from station, the spacecraft navigates to an altitude of 280 to 310 miles (an orbit higher than that of the space station) to deploy the satellites.

NG Press Release
Quote
The next phase of the mission features an inaugural flight for the Slingshot CubeSat Deployer System which further demonstrates Cygnus’ capabilities beyond its core cargo delivery function. Cygnus is prepared to support Slingshot, a flexible platform that can fly hosted payloads and CubeSats after installation onto the Cygnus spacecraft by NASA astronauts. Upon completion of its secondary missions, Cygnus will perform a safe, destructive reentry into Earth’s atmosphere over the Pacific Ocean.

https://twitter.com/SEOPSLLC/status/1030517519562551298
« Last Edit: 12/15/2018 03:00 pm by gongora »

Offline Olaf

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Offline Comga

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Re: SpaceX F9 : CRS SpX-18 : May 2019
« Reply #6 on: 12/15/2018 09:46 pm »
Ah!
Like Jonathan Goff’s proposed “HatchBasket”
The group formed last year and got something to orbit before the end of this year
Very rapid technical and contractual development.
Looking forward to learning the details of how the pieces, “Slingshot” dispensed, CubeSats, etc. are arranged, transported, installed and deployed.
What kind of wastrels would dump a perfectly good booster in the ocean after just one use?

Offline deruch

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Re: SpaceX F9 : CRS SpX-18 : May 2019
« Reply #7 on: 12/17/2018 02:59 am »
RFTSat (1007-EX-CN-2018)
Quote
The RFTSat CubeSat will be launched as a payload on a Falcon 9 launch vehicle executing the SpX-18 cargo mission for the International Space Station. The RFTSat CubeSat will then be deployed at a to-be-determined later date by a Cygnus vehicle departing the International Space Station.
The current launch date is projected to be May 7th, 2019
...

How is that deployment possible?
Post departure deployments from Cygnus have been done from external deployers.
CubeSats carried on SpaceX CRS missions have gone as internal cargo and have been deployed thru the JEM airlock.
External transfer between these systems doesn’t make sense, which contributes to why it hasn’t been demonstrated.
The only way I can see this working is if they bring it back on the Dragon after some testing on orbit and ship it to MARS to be loaded onto the Cygnus before encapsulation and launch.
Unless there are two RFTSats

https://www.nasa.gov/mission_pages/station/research/experiments/explorer/Facility.html?#id=7847 

Quote
The SlingShot attachment hardware and controller, as well as the satellites in their deployers, are flown to the space station as pressurized cargo in a visiting vehicle. Just prior to Cygnus departure, the SlingShot Controller is installed inside the Cygnus Cargo Module, the Cygnus hatch is closed and Slingshot deployer hardware is installed in the Cygnus PCBM. The deployers/satellites are then loaded into place. Next, the ISS hatch is closed and Cygnus departs and maneuvers to approximately 50 to 100 km above the space station, and deploys the SlingShot satellites. The remaining SlingShot hardware then burns up with Cygnus upon destructive reentry

That's clever.  The actual deployer is installed on the hatch or berthing ring.  But given the internal cargo volume limitations already experienced with Dragon, I'd be surprised if NASA chooses to send up many payloads with SpaceX instead of inside the Cygnus.
Shouldn't reality posts be in "Advanced concepts"?  --Nomadd

Offline zubenelgenubi

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Re: SpaceX F9 : CRS SpX-18 : July 2019
« Reply #8 on: 01/17/2019 09:50 pm »
Launch date: July 8, 2019
Source: SFN Launch Schedule, updated Jan. 16
« Last Edit: 01/17/2019 09:58 pm by zubenelgenubi »
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Offline gongora

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Re: SpaceX F9 : CRS SpX-18 : July 2019
« Reply #9 on: 03/07/2019 01:07 am »
0048-EX-CM-2019 MakerSat-1
Quote
MakerSat-1 is a technology proof-of-concept mission to demonstrate microgravity additive
manufacturing, assembly, and deployment of a CubeSat from the International Space Station.
MakerSat-1 is the first spacecraft explicitly designed to be 3D-printed aboard the ISS, easily and
safely snap-assembled by the astronaut crew in only 5 minutes without tools or fasteners, and
then gently deployed directly into orbit from the ISS. Its structural frame was 3D-printed in
August 2017, using the Additive Manufacturing Facility (AMF) printer aboard the ISS. Six circuit
boards/batteries are being sent to ISS on a July 2019 re-supply flight to permit the crew to finish
snap-together assembly, and battery charging. MakerSat-1 will be launched on a SpaceX
Falcon 9 vehicle where it will be transported onto the ISS. It will then be deployed from the
SEOPS deployment system onboard the Cygnus spacecraft hatchdoor which will be released
from the ISS.

I guess the parts go up on SpX-18 and the cubesat is launched from NG-12.

Offline Olaf

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Re: SpaceX F9 : CRS SpX-18 : July 2019
« Reply #10 on: 03/07/2019 06:57 am »

I guess the parts go up on SpX-18 and the cubesat is launched from NG-12.
Or NG-11?

Offline Olaf

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Re: SpaceX F9 : CRS SpX-18 : July 2019
« Reply #11 on: 03/07/2019 02:03 pm »

I guess the parts go up on SpX-18 and the cubesat is launched from NG-12.
Or NG-11?
It will be NG-11.
From site 6 of the ODAR.pdf
Quote
Milestone Schedule
CubeSat Delivery to SEOPS 5/6/2019
Falcon 9 Launch to ISS 7/8/2019
Assembly on ISS 7/15/2019
Deploy from Cygnus 7/24/2019
Begin Orbital Operation 7/25/2019

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