Author Topic: SpaceX F9 : SES-18 / SES-19 : CCSFS SLC-40 : 17 March 2023 (23:38 UTC)  (Read 59834 times)

Offline gongora

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Discussion Thread for launch of SES-18/SES-19

NSF Threads for SES-18/SES-19 : Discussion

March 17, 2023 (23:38 UTC = 7:38 pm EDT), on Falcon 9 (booster 1069-6) to GTO



Quote
SES Selects SpaceX for Launch of New C-Band Satellites

Luxembourg, 5 August 2020 – SES, the leader in global content connectivity solutions, announced today that American launch provider SpaceX will provide launch capability for up to 3 of its C-band satellites over two launches as part of the company’s accelerated C-band clearing plan. SpaceX’s Falcon 9 rocket will launch two C-band satellites built by Northrop Grumman as well as provide enhanced protection to rapidly launch a contingency satellite from Cape Canaveral, Florida in 2022 allowing SES to meet the Federal Communications Commission’s time-critical objective to roll out 5G services across the United States.

In June, SES announced it contracted American companies Northrop Grumman and the Boeing Company to deliver four C-band satellites in accordance with SES’s accelerated C-band clearing plan. These satellites will enable SES to clear 280MHz of mid-band spectrum for 5G use while seamlessly migrating SES’s existing C-band customers and ensuring the continued delivery of digital television to nearly 120 million American TV homes and other critical data services.

In the last few months, SES has been increasingly working with U.S. businesses across the country and investing in America in the C-band transition plan, and its long-standing relationship with SpaceX signifies its latest commitment to the U.S. SpaceX has launched six SES satellites in the last seven years.
...
SpaceX President and Chief Operating Officer Gwynne Shotwell noted, “SES is one of SpaceX‘s most-valued partners, and we are proud of their continued trust in our capabilities to reliably deliver their satellites to orbit. We are excited to once again play a role in executing SES’s solutions to meet their customers’ needs.”

Quote
SES Selects Two U.S. Companies to Build Four New Satellites as Part of Accelerated C-Band Clearing Plan
June 16, 2020

Northrop Grumman will deliver two flight-proven GeoStar-3 satellites, each equipped with a high-quality C-band payload to deliver the superior customer experience that end users are accustomed to. The two satellites – SES-18 and SES-19 – will be designed, assembled and tested in Dulles, Virginia.

The Boeing Company will deliver a pair of highly efficient all-electric 702SP satellites. The two satellites – SES-20 and SES-21 – will be manufactured and assembled in Los Angeles, California.

These four C-band only new satellites will enable SES to clear 280 MHz of mid-band spectrum for 5G use while seamlessly migrating SES’s existing C-band customers. Each satellite will have 10 primary transponders of 36 MHz plus back-up tubes so they can enable the broadcast delivery of digital television to more than 120 million TV homes as well as provide critical data services. The satellites, when launched in Q3 2022, will be positioned at 103 degrees West, 131 degrees West and 135 degrees West orbital slots. The cost of manufacturing these four satellites is part of the USD 1.6 billion investment envelope that SES has announced in May.
« Last Edit: 03/18/2023 04:36 am by zubenelgenubi »

Offline EspenU

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Re: SpaceX F9 : SES-18 / SES-19 : 2022
« Reply #1 on: 08/06/2020 09:57 am »
Will these be on the same launch, or two different launches?

Online Steven Pietrobon

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Re: SpaceX F9 : SES-18 / SES-19 : 2022
« Reply #2 on: 08/06/2020 10:01 am »
Will these be on the same launch, or two different launches?

Same launch. One satellite is stacked on top the other.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline gongora

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Re: SpaceX F9 : SES-18 / SES-19 : H2-2022
« Reply #3 on: 08/13/2021 06:49 pm »
https://fcc.report/IBFS/SAT-RPL-20210812-00099
Quote
Construction of the satellites is well under way, and SES currently expects to launch all four spacecraft during the third quarter of 2022.

Offline StraumliBlight

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Offline gongora

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Offline soltasto

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Re: SpaceX F9 : SES-18 / SES-19 : Q3-2022
« Reply #6 on: 09/10/2021 05:04 pm »
SES-18 mass is 1139 kg & SES-19 is 1280 kg

Is that at end of life?

Considering that those numbers are stated in the "Space station disposal plans." section and that they are using those numbers to calculate the "Minimum Disposal Orbit Perigee Altitude", yes.

Offline zubenelgenubi

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« Last Edit: 03/30/2022 04:39 am by zubenelgenubi »
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Offline zubenelgenubi

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Re: SpaceX F9 : SES-18 / SES-19 : Florida : H2 2022
« Reply #8 on: 03/30/2022 04:43 am »
SFN Launch Schedule update, March 25 (one of many):
SES-18 and 19 launch on TBD 2022 from either Kennedy LC-39A or Canaveral SLC-40.

It appears essentially equivalent to H2 2022.
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Offline GWR64

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Re: SpaceX F9 : SES-18 / SES-19 : Florida : H2 2022
« Reply #9 on: 04/09/2022 09:48 am »
Already written in the SES-22 thread, there are delays at the construction of SES-18 and SES-19.
A little more detailed at SES:
https://www.ses.com/sites/default/files/2022-04/ECFS_DOC-5ff88bf9dac00000-A.pdf
also attached

With the launch of SES-22 and its planned use on 135°W, the positions of the other satellites have also changed.
SES-20 is now planned as in orbit spare on 103°W.
SES-21 goes to 131°W.
SES-18 or SES-19 should now be used on 103°W.
I did not understand what is planned for the second Northrop Grumman satellite.

The former orbit positions can be found there. Attachment Narrative
https://fcc.report/IBFS/SAT-RPL-20210812-00099
...
« Last Edit: 04/09/2022 10:11 am by GWR64 »

Offline GWR64

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Re: SpaceX F9 : SES-18 / SES-19 : Florida : Q4 2022
« Reply #10 on: 05/06/2022 11:27 am »
The launch of SES-18 and SES-19 is now scheduled for Q4 2022.
https://www.ses.com/sites/default/files/2022-05/SES%20Q1%202022%20Results.pdf

Offline zubenelgenubi

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Re: SpaceX F9 : SES-18 / SES-19 : Florida : Q4 2022
« Reply #11 on: 05/25/2022 03:52 pm »
SFN Launch Schedule update, May 24: TBD.
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Offline zubenelgenubi

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Re: SpaceX F9 : SES-18 / SES-19 : Florida : Q4 2022
« Reply #12 on: 06/29/2022 06:58 pm »
SFN SpaceX mission this week to kick off busy launch calendar for SES, June 28
Quote
Two more C-band satellites — SES 18 and 19 built by Northrop Grumman — will launch together on a single Falcon 9 rocket around the end of the year.
« Last Edit: 06/29/2022 07:00 pm by zubenelgenubi »
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Offline zubenelgenubi

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Re: SpaceX F9 : SES-18 / SES-19 : Florida : NET November 2022
« Reply #13 on: 07/05/2022 01:28 pm »
Cross-post:
Not much new to SES-18/19, C-Band Q2 2022 Report [June 30]:
Quote
...SES-18 and SES-19 will not be available for launch before November 2022 at the earliest due to a number of manufacturing delays. Assuming the current SES-18 and SES-19 schedule is maintained, SES now expects SES-18 and SES-19 to start commercial service by end of December 2022 / Q1 2023.
...
The launch slot selection for SES-18 and SES-19 is still to be confirmed.
« Last Edit: 08/24/2022 02:37 am by zubenelgenubi »
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Offline GWR64

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Re: SpaceX F9 : SES-18 / SES-19 : Florida : Q1 2023
« Reply #14 on: 10/06/2022 05:21 pm »
launch delayed to Q1/2023

Quote
...While the SpaceX F9 launcher for SES-22 was available in June 2022, the F9 launcher for SES-18 and SES-19 will not be available before January 2023 due to the delays from the original Northrop Grumman delivery and priority of US government launches. Assuming the current Northrop Grumman delivery schedule for SES-18 and SES-19 is maintained, SES expects SES-18 and SES-19 to start commercial service by April 2023.
 ...
As described above, the Northrop Grumman satellites, SES-18 and SES-19, have experienced manufacturing delays. Since our last report, we have also been informed by SpaceX that the earliest available launch opportunity for SES-18 and SES-19 is Q1 2023 as a result of higher priority US government launches scheduled for Q4 2022. Because of these delays, which are beyond SES’s control, there is a significant risk SES-18 and SES-19 will not be commercially available until the beginning of Q2 2023.
...
Construction by Thales of the second ground spare, SES-23, began on June 1, 2021 and is expected to be delivered in March 2023. Subject to the successful launch and deployment of all necessary C-band transition satellites, SES-23 may become unused.
...
The Northrop Grumman SES-18 and SES-19 satellites are expected to be launched in Q1 2023; however the launch slot week is still to be confirmed by SpaceX. The launcher for SES-23 has not been contracted.
« Last Edit: 10/06/2022 05:47 pm by GWR64 »

Offline gongora

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Re: SpaceX F9 : SES-18 / SES-19 : Florida : Q1 2023
« Reply #15 on: 10/10/2022 06:26 pm »
https://spacenews.com/spacex-deploys-two-of-six-c-band-satellites-intelsat-is-launching-this-year/
Quote
SES CEO Steve Collar recently said he expects SpaceX will launch its final two C-band satellites late this year or early next.

I'd guess our existing Q1 estimate is still going to be the case.

Offline AndrewM

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Re: SpaceX F9 : SES-18 / SES-19 : Florida : Q1 2023
« Reply #16 on: 11/07/2022 02:53 am »
SES' Q3 2022 earnings report is still showing Q1 2023 for launch.

https://www.ses.com/press-release/solid-ytd-2022-results

Offline gongora

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Re: SpaceX F9 : SES-18 / SES-19 : Florida : Q1 2023
« Reply #17 on: 02/01/2023 10:34 pm »
SES-18 now going to 103.05° W.L.
SES-19 now going to 134.9° W.L.
« Last Edit: 02/01/2023 10:35 pm by gongora »

Offline gongora

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Re: SpaceX F9 : SES-18 / SES-19 : Florida : 6 March 2023
« Reply #18 on: 02/02/2023 07:05 pm »
Quote
SES-18 and SES-19 are expected to launch together on March 6, 2023. Intelsat expects the LEOP and IOT period to last approximately 30 days.

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Re: SpaceX F9 : SES-18 / SES-19 : Florida : 6 March 2023
« Reply #19 on: 02/02/2023 07:37 pm »
Quote
SES-18 and SES-19 are expected to launch together on March 6, 2023. Intelsat expects the LEOP and IOT period to last approximately 30 days.

Seems impossibly close to Mar 7th Intesat 40eand March 11th CRS-27 dates we have but maybe one of those is slipping?

Offline GewoonLukas_

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Re: SpaceX F9 : SES-18 / SES-19 : Florida : 6 March 2023
« Reply #20 on: 02/02/2023 07:39 pm »
Quote
SES-18 and SES-19 are expected to launch together on March 6, 2023. Intelsat expects the LEOP and IOT period to last approximately 30 days.

Seems impossibly close to Mar 7th Intesat 40eand March 11th CRS-27 dates we have but maybe one of those is slipping?

Intelsat 40e is no longer scheduled for March

The same colleague says that the new target launch date is April 7.
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Offline zubenelgenubi

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Re: SpaceX F9 : SES-18 / SES-19 : Florida : 6 March 2023
« Reply #21 on: 02/02/2023 08:57 pm »
Quote
SES-18 and SES-19 are expected to launch together on March 6, 2023. Intelsat expects the LEOP and IOT period to last approximately 30 days.

Seems impossibly close to Mar 7th Intesat 40e and March 11th CRS-27 dates we have but maybe one of those is slipping?
See the Intelsat 40e launch thread.  Inside source has this currently launching April 7.
The word from a colleague with direct knowledge is that Intelsat 40e will not launch on March 7.
Current target date is March 23 but a slip “into April would not be surprising”.
The same colleague says that the new target launch date is April 7.
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« Last Edit: 02/02/2023 09:02 pm by zubenelgenubi »
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Offline zubenelgenubi

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Re: SpaceX F9 : SES-18 / SES-19 : Florida : 6 March 2023
« Reply #22 on: 02/03/2023 12:00 am »
ASDS 1st stage landing likely?

Different make/model, but same general purpose: Galaxy 33 and 34 launch used ASDS landing.
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Offline GewoonLukas_

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Re: SpaceX F9 : SES-18 / SES-19 : Florida : 6 March 2023
« Reply #23 on: 02/03/2023 11:47 am »
ASDS 1st stage landing likely?

Different make/model, but same general purpose: Galaxy 33 and 34 launch used ASDS landing.

Likely yes. Other Northrop Grumman GEOStar-3 satellites have (had) launch masses between 2000 and 4000kg. So SES-18 & SES-19 will probably be between 4000 and 8000kg combined.

Also: Likely using this license:
0157-EX-ST-2023
Mission 1589, SLC-40 or LC-39A
Operation Start Date = 2023 Mar 2
ASDS North 28 13 18  West 73 43 45 (GTO/ASDS landing approx. 670km downrange)
"Uses information from" 2087-EX-ST-2022 (Amazonas Nexus 6)
That mission number seems to be in between previous Intelsat and SES C-band launches
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Offline FutureSpaceTourist

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Re: SpaceX F9 : SES-18 / SES-19 : Florida : 6 March 2023
« Reply #24 on: 02/15/2023 05:19 pm »
https://twitter.com/northropgrumman/status/1625902774889197568

Quote
SES-18 and SES-19 have officially left storage at our Dulles satellite manufacturing facility. 🛰

The satellites have arrived at their next destination and are on the road to launch!  🚀 Stay tuned for mission details.

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Re: SpaceX F9 : SES-18 / SES-19 : Florida : 6 March 2023
« Reply #25 on: 02/17/2023 02:08 am »
https://spaceflightnow.com/launch-schedule/ 16 feb update has this pushed to 9th 00:35 (19:35 8th EST)

Offline GWR64

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https://twitter.com/SES_Satellites/status/1626620208348643329

Quote
SES
@SES_Satellites
Check out these #BTS looks as we count down to the launch of our #SES18 and #SES19 satellites! 🤩

Offline GewoonLukas_

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https://twitter.com/SES_Satellites/status/1626620208348643329

Quote
SES
@SES_Satellites
Check out these #BTS looks as we count down to the launch of our #SES18 and #SES19 satellites! 🤩

Other than this smaller antenna, these satellites look identical to Galaxy 33 & Galaxy 34
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Offline GewoonLukas_

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NextSpaceflight (Updated February 23rd)
Launch NET March 15th, 2023
https://nextspaceflight.com/launches/details/4745
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Offline Galactic Penguin SST

Re: SpaceX F9 : SES-18 / SES-19 : Florida : March 2023
« Reply #29 on: 02/27/2023 04:10 pm »
SFN now has it on March 18, ~00:35 UTC = ~8:35 pm EDT, March 17.
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Offline zubenelgenubi

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Which first stage will be used for this launch?

1052.8 and 1053.3 are manifested to be expended on the ViaSat-3 Americas launch.

1060.16 is presumably still involved in its "deep-dive examination?"

Available first stages, with date of most recent recovery:
1058.16  Dec 17 (perhaps being held back until the examination of 1060.16 is complete?)
1067.10  Jan 26
1069.6    Feb 2
1073.7    Feb 6  Cargo Dragon SpX-27  OneWeb Flight 17 (currently expected to be undergoing conversion to a Falcon Heavy side booster)
1062.13  Feb 12  OneWeb Flight 17
1077.4    Feb 18
1076.4    Feb 27

Edit March 16: It's 1069.6.

Edited
« Last Edit: 04/20/2023 01:10 am by zubenelgenubi »
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Offline gongora

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NGA notice
Quote
102225Z MAR 23
NAVAREA IV 277/23(11, 26).
STRAITS OF FLORIDA.
WESTERN NORTH ATLANTIC.
FLORIDA.
1. HAZARDOUS OPERATIONS, ROCKET LAUNCHING
   2328Z TO 0113Z DAILY 17 THRU 24 MAR
   IN AREAS BOUND BY:
   A. 28-38.09N 080-37.04W, 28-40.00N 080-16.00W,
      28-39.00N 079-59.00W, 28-30.00N 079-58.00W,
      28-30.00N 080-08.00W, 28-30.88N 080-33.22W.
   B. 28-14.00N 075-29.00W, 28-29.00N 075-28.00W,
      28-30.00N 072-43.00W, 28-28.00N 072-11.00W,
      27-58.00N 072-11.00W, 27-49.00N 072-41.00W.   
2. CANCEL THIS MSG 240207Z MAR 23.

Offline OneSpeed

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NGA notice

LHA map from the NGA notice. ASDS some 668km downrange.

Offline FutureSpaceTourist

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https://twitter.com/spaceoffshore/status/1635068255508500480

Quote
Departure! Just Read the Instructions droneship and tug Crosby Skipper are outbound to support the upcoming SES 18/19 mission - NET March 17th!

nsf.live/spacecoast

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https://nextspaceflight.com/launches/details/4745
saying Fri Mar 17, 2023 23:34 GMT

1 hr 1min earlier or is that meant to be 1 min earlier and some confusion re daylight saving?

Offline russianhalo117

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https://nextspaceflight.com/launches/details/4745
saying Fri Mar 17, 2023 23:34 GMT

1 hr 1min earlier or is that meant to be 1 min earlier and some confusion re daylight saving?
The time change just happened at 2am Central Time (The time change for all US timezones twice a year starts CONUS-wide at midnight 00hr00mm on Sunday morning in the Pacific timezone. Everywhere else is by the US Virgin Islands and Hawaii.) in the USA, minus select states and territories which never opted in to the DST capitalism scheme, so the latter is more likely.
« Last Edit: 03/13/2023 12:22 am by russianhalo117 »

Offline Galactic Penguin SST

https://nextspaceflight.com/launches/details/4745
saying Fri Mar 17, 2023 23:34 GMT

1 hr 1min earlier or is that meant to be 1 min earlier and some confusion re daylight saving?

I changed it per Ben Cooper’s site:

Quote
A Falcon 9 from pad 40 will launch the SES-18 & 19 satellites on March 17 at 7:34 p.m. EDT.
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Offline FutureSpaceTourist

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L-3 launch weather forecast is 70% GO, all additional risk criteria are low
« Last Edit: 03/14/2023 01:14 pm by FutureSpaceTourist »

Offline FutureSpaceTourist

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https://twitter.com/northropgrumman/status/1635672148491612160

Quote
The launch of SES-18 and -19 #satellites complete the mission to support the @FCC’s order to make the lower portion of C-band spectrum available to #mobilenetwork operators to further the rollout of critical 5G services in the US. 🛰️

Stay tuned for launch details! 🚀

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https://twitter.com/spaceoffshore/status/1635764762582687745

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Departure! Bob is outbound from Port Canaveral to support the SES 18/19 mission! JRTI droneship left a few days ago.

Live: nsf.live/spacecoast

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L-2 weather forecast. 70% 'Go' for March 17. 35% 'Go' for March 18. Upper-Level Wind Shear risk is Low-Moderate for both days. All other Additional Risk Criteria are Low.
This account is inactive as of the end of 2024.

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L-1 weather forecast. 80% 'Go' for March 17. 35% 'Go' for March 18. Upper-Level Wind Shear risk is Low-Moderate for both days. All other Additional Risk Criteria are Low.
This account is inactive as of the end of 2024.

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https://www.spacex.com/launches/mission/?missionId=SES-18-SES-19

Quote
SpaceX is targeting Friday, March 17 for launch of the SES-18 and SES-19 mission to a geosynchronous transfer orbit from Space Launch Complex 40 (SLC-40) at Cape Canaveral Space Force Station in Florida. The 38-minute launch window opens at 7:38 p.m. ET (23:38 UTC). The 38-minute launch window opens at 7:38 p.m. ET (23:38 UTC). A backup launch opportunity is available on Saturday, March 18 with a 37-minute window opening at the same time.

The Falcon 9 first stage booster supporting this mission previously launched CRS-24, Eutelsat HOTBIRD 13F, OneWeb 1, and two Starlink missions. After stage separation, the first stage will land on the Just Read the Instructions droneship, which will be stationed in the Atlantic Ocean.

A live webcast of this mission will begin about 15 minutes prior to liftoff.

Booster B1069 + SpaceX Mission Patch

« Last Edit: 03/16/2023 04:53 pm by GewoonLukas_ »
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"Press kit" capture with OCR

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The satellites will weigh 7.255kg combined and will be deployed into a sub-synchronous geostationary transfer orbit:

Quote
The Falcon 9 will aim to release the two Northrop Grumman-built satellites into a “sub-synchronous” transfer orbit with an apogee, or high point, short of the satellites’ final 22,000-mile-high operating altitude in geostationary orbit.

In launch configuration, the two nearly identical satellites weigh 15,995 pounds (7,255 kilograms), according to a Northrop Grumman spokesperson. The lower satellite in the dual-payload stack, SES 19, weighs about 100 pounds more than the upper satellite because it carries structural components to directly connect the spacecraft together during the ride into orbit.

https://spaceflightnow.com/2023/03/16/ses-to-complete-c-band-clearing-program-with-spacex-dual-satellite-launch/
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https://twitter.com/launchphoto/status/1636768621258067968

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SES-18 & 19 vertical on the pad, liftoff set for 7:38 p.m. EDT tonight.

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https://twitter.com/tgmetsfan98/status/1636788011110367232

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Two SpaceX Falcon 9 launches are on tap today! First, a Starlink mission from Vandenberg at 12:26 PM PDT (19:26 UTC), then a pair of SES communications satellites from Cape Canaveral at 7:38 PM EDT (23:38 UTC).

Article by William Graham (@w_d_graham):

https://www.nasaspaceflight.com/2023/03/spacex-starlink-ses/

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https://twitter.com/ses_satellites/status/1636766983554232320

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👀 It’s happening…

#SES18 #SES19

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https://twitter.com/spaceoffshore/status/1636828138431758338

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SpaceX recovery ship Bob is 760km downrange to recover the fairing for the upcoming SES 18/19 mission.

Just Read the Instructions droneship is a little closer, at  650km, for the Falcon 9 first stage to land.

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Quote
Falcon 9 vertical at SLC-40 ahead of tonight’s launch of the @SES_Satellites SES-18 and SES-19 mission; teams are keeping an eye on winds at the launch site

https://twitter.com/SpaceX/status/1636834908382572554
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https://twitter.com/spacecoast_stve/status/1636864804865318912

Quote
The 2nd Falcon 9 launch of the day is set to take place at 7:38pm ET, just 6 minutes after sunset.

With that kind of timing, and clear skies overhead, it should be a great show!

Watch live: youtube.com/live/NGXD_RPG6…

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NSF is live

https://twitter.com/nasaspaceflight/status/1636865430831742976

Quote
Well, it's been a good few hours since SpaceX last launched a Falcon 9, so you'll be looking forward to this! 😅

Falcon 9 B1069-6 is set to launch SES-18 and SES-19 from SLC-40.

Overview:
nasaspaceflight.com/2023/03/spacex…

NSF Livestream:
youtube.com/watch?v=NGXD_R…
« Last Edit: 03/17/2023 10:02 pm by FutureSpaceTourist »

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https://twitter.com/alexphysics13/status/1636867289327845379

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NSF streaming today from just 2.1 miles from Falcon 9, closer than usual. Don't worry! It's all okay, the SLD45 has provided that access for today so definitely not complaining about it at all, hopefully we see more chances like this one, it's so cool.

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Fuelling underway

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« Last Edit: 03/17/2023 10:19 pm by FutureSpaceTourist »

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I'm back from my morning walk! T-20 minute vent is occurring.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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T-16 minutes. Second stage LOX load has started.
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Both spacecraft are on internal power and are go for launch.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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SpaceX webcast has begun.
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T-10 minutes. Fairings flying for 7th and 3rd time.
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Droneship.
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T-7 minutes. Engine chill has started.
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T-6 minutes. First stage RP-1 load is complete.
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https://twitter.com/spaceoffshore/status/1636873194530275328

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Just Read the Instructions with a lucky clover for St Patricks day ;)

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T-5 minutes. Falcon 9 tanks are pressurising for strongback retract.
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T-4 minutes. Strongback is retracting.
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T-3 minutes. First stage LOX load is complete.

First stage is pogo.
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T-2 minutes.

Second stage LOX load is complete.
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T-1 minute. Falcon 9 is in startup.

Go for launch.
« Last Edit: 03/17/2023 10:38 pm by Steven Pietrobon »
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Liftoff!
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T+1 minute.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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https://twitter.com/spacex/status/1636874721680834560

Quote
Liftoff!

https://twitter.com/nasaspaceflight/status/1636874948814807042

Quote
LAUNCH! Falcon 9 B1069-6 launches SES-18 and SES-19 from SLC-40.

Overview:
nasaspaceflight.com/2023/03/spacex…

NSF Livestream:
youtube.com/watch?v=NGXD_R…

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T+2  minutes.
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MECO.

First stage separation.

Second stage ignition.

T+3 minutes.
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Fairing separation.

T+4 minutes.
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https://twitter.com/nasaspaceflight/status/1636875977761456128

Quote
Amazing views of the Second Stage continuing, while the Booster heads for the drone ship and the two fairing halves line up for recovery from the Atlantic.

youtube.com/watch?v=NGXD_R…

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T+5 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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T+6 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Entry burn.

T+7 minutes.
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T+8 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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https://twitter.com/nasaspaceflight/status/1636876950818914307

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SpaceX Falcon 9 B1069 completes its sixth mission, landing on drone ship Just Read The Instructions.

And that's a bullseye!

youtube.com/watch?v=NGXD_R…

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https://twitter.com/alexphysics13/status/1636877265098227712

Quote
And that's two Falcon 9 launch and landings back to back 4h and 12min apart, another record for SpaceX.

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Cutoff.

Landing burn.

Touchdown!

T+9 minutes.
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In coast phase.

T+10 minutes.

Upcoming events.

00:26:17    2nd stage engine starts (SES-2)
00:27:04    2nd stage engine cutoff (SECO-2)
00:32:15    SES-18 deploys
00:37:25    SES-19 deploys
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https://twitter.com/jennyhphoto/status/1636879195186814976

Quote
Liftoff of SES-18 and SES-19 from SLC-40!

📷: Me for @SuperclusterHQ

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T+20 minutes. Approaching Africa.
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AOS Gabon.

T+25 minutes and 17 seconds. One minute to expected second ignition for 47 seconds.
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Ignition.
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Cutoff.

Nominal transfer orbit.
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T+30 minutes.

Calculate orbit with 19,869 km apogee and 2190 m/s to GSO.

Enter initial perigee height (km): 311
Enter SpaceX speed (km/h): 33519
Enter initial orbit inclination (deg): 27

Estimated inertial speed = 9745.4 m/s
Estimated apogee height = 19869.2 km

Enter required inclination change (deg): 27
Enter final orbit height (km): -1
Geosynchronous altitude = 35786.0 km

Burn at   311.0 km: theta1 =  0.29 deg, dv1 =  399.7 m/s
Burn at 35786.0 km: theta2 = 26.71 deg, dv2 = 1790.0 m/s
dv = 2189.7 m/s
« Last Edit: 03/17/2023 11:12 pm by Steven Pietrobon »
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SES-18 separation confirmed.
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https://twitter.com/jerrypikephoto/status/1636882386041307137

Quote
Staging 1-2. Two distinct objects turned into 4 as the second stage fairings were jettisoned as the first stage fell away back towards its landing zone offshore in the Atlantic Ocean

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T+36 minutes and 25 seconds. One minute to SES-19 separation.
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https://twitter.com/mike_seeley/status/1636881634308808704

Quote
Friday was a busy day for #SpaceX: Starlink satellites launched from the west coast, then a #Falcon9 booster returned to port (left) & at 7:38pm (EDT) another Falcon9 rocket carried the #SES18 & #SES19 satellites to orbit (streak, to the right). 

(📷: me / @WeReportSpace)

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SES-19 separation!
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End of webcast.

Congratulations to SpaceX and SES for the successful launch!
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline FutureSpaceTourist

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https://twitter.com/nasadesigner/status/1636881475265089540

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A stunning sunset launch for @spacex. Sending SES-18 and SES-19 to space atop a Falcon 9 rocket.

Offline FutureSpaceTourist

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https://twitter.com/spacecoast_stve/status/1636885272141987841

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SpaceX performs a doubleheader, launching two Falcon 9 rockets just over 4 hours apart.

This one, carrying 2 satellites for SES, lifted off from SLC-40 in Cape Canaveral at 7:38pm.

Mission overview: nasaspaceflight.com/2023/03/spacex…

Offline FutureSpaceTourist

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Congratulations to SES and to SpaceX for a great doubleheader and 19th mission of the year!

With 6 launches already in March, this could be a record breaking month for SpaceX.

Offline FutureSpaceTourist

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Offline FutureSpaceTourist

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https://twitter.com/tweetsiphotos/status/1636884567368822784

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Falcon 9 passing through Max-Q

https://twitter.com/tweetsiphotos/status/1636884768481591300

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A shot of Falcon 9 shortly before stage separation 🔥

Offline FutureSpaceTourist

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https://twitter.com/spacex/status/1636889232102010881

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Falcon 9 launches SES-18 and SES-19 to orbit

Offline FutureSpaceTourist

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https://twitter.com/_mgde_/status/1636887360230109189

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“It’s Friday” -Rebecca Black

Falcon 9 and two communications satellites for SES ride into the sunset on this fine Friday evening after launching from SLC-40 at 7:38pm local time.

Happy St. Patrick’s Day! 🍀

Offline FutureSpaceTourist

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twitter.com/nextspaceflight/status/1636916157037903873

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Fully automated track of tonight's SpaceX launch with zero human inputs. Stage 2 even went behind a cloud for a bit. The system reverted to @flightclubio data to maintain the correct trajectory during that period.

https://twitter.com/nextspaceflight/status/1636916631505911810

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The software compares neural net tracking data with the FlightClub predictions and adds error offsets to improve accuracy when the FlightClub data is needed.

Offline FutureSpaceTourist

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https://twitter.com/thenasaman/status/1636904631220445190

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Not quite jellyfish weather, both in the Jupiter Inlet and in the sky as SpaceX launches SES-18 and SES-19 into orbit right around sunset 150 miles south of the launch site. This is 150 still images merged together btw.

All about the mission: nasaspaceflight.com/2023/03/spacex…

Offline FutureSpaceTourist

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https://twitter.com/steviecses/status/1636904224586964996

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Can confirm telemetry has been acquired from both #SES18 and #SES19 and so MISSION SUCCESS! Thanks to @SpaceX for a great ride. We will take it from here @SES_Satellites

Offline zubenelgenubi

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Launch time at 23:38:00 UTC? ⏲️
https://twitter.com/cbs_spacenews/status/1636875201471295489
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William Harwood @cbs_spacenews
F9/SES-18/19: LIFTOFF! At 7:38pm EDT (2338 UTC)
Support your local planetarium! (COVID-panic and forward: Now more than ever.) My current avatar is saying "i wants to go uppies!" Yes, there are God-given rights. Do you wish to gainsay the Declaration of Independence?

Offline dawei

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Did anyone else notice something (solar array??) flapping around on SES-19 shortly before and after payload fairing sep?  Maybe it was just insulation? It concerned me.

Glad to hear both satellites have checked in and there aren’t any problems that we are aware of.

Offline ZachS09

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Did anyone else notice something (solar array??) flapping around on SES-19 shortly before and after payload fairing sep?  Maybe it was just insulation? It concerned me.

Glad to hear both satellites have checked in and there aren’t any problems that we are aware of.

I thought it was just the insulation vibrating.
SECO confirmed. Nominal orbit insertion.

Offline GewoonLukas_

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SES-18, SES-19 and Falcon 9 stage 2 cataloged as 55970-72 in a 308 x 19720 km x 26.9 deg subsync transfer orbit, confirming successful launch.

https://twitter.com/planet4589/status/1637195979567792129
Lukas C. H. • May the force be with you my friend, Ad Astra Per Aspera ✨️

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https://twitter.com/tskelso/status/1637221298979090432

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CelesTrak has GP data for 3 objects from the launch (2023-038) of SES-18 & SES-19 atop a Falcon 9 rocket from Cape Canaveral on Mar 17 at 2338 UTC: spaceflightnow.com/2023/03/17/fal…. Data for the launch can be found at: https://celestrak.org/NORAD/elements/table.php?INTDES=2023-038

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https://twitter.com/spaceoffshore/status/1637785837684371457

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Bob arrived at Port Canaveral at 2am this morning with both faring halves from the SES 18/19 launch.

nsf.live/spacecoast

Offline FutureSpaceTourist

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https://twitter.com/spaceoffshore/status/1637928507874455557

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SpaceX Falcon 9 B1069 circling just outside port (but within sight of our camera 😉) waiting for the Mickey Mouse cruise ship to depart.

Arriving in Port Canaveral shortly.

nsf.live/spacecoast

Offline GewoonLukas_

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View from the second stage following last week's launch of SES-18 and SES-19 to a geosynchronous transfer orbit

https://twitter.com/SpaceX/status/1637942606020890624
Lukas C. H. • May the force be with you my friend, Ad Astra Per Aspera ✨️

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https://twitter.com/spaceoffshore/status/1637939881283403782

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This four leaf clover provided all the required luck to land the Falcon 9 on St. Patricks day! 🍀

Live views of the rocket: nsf.live/spacecoast

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https://twitter.com/julia_bergeron/status/1637973516749271046

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Booster 1069 has returned to Port Canaveral after a sixth flight delivering SES 18 & 19 to orbit.

More about the mission: nasaspaceflight.com/2023/03/spacex…

Views of port: nsf.live/spacecoast

📷 Me for @NASASpaceflight

Edit to add:

https://twitter.com/julia_bergeron/status/1637974506902896644
« Last Edit: 03/20/2023 11:40 pm by FutureSpaceTourist »

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https://twitter.com/_mgde_/status/1637931674968137731

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Disney Wish departure

JRTI & B1069 arrival

Just another Monday on Florida’s space coast 🌴

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To space & back ✌🏻

https://twitter.com/_mgde_/status/1637944997008777216

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Falcon & humans for scale

Ft. sooty battle scars

Offline FutureSpaceTourist

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https://twitter.com/tweetsiphotos/status/1637938035886272514

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B1069 is back in Port!! 🚀

@SpaceOffshore

Offline Targeteer

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55970    SES 18   2023-038A      348.37   26.89   19736   308
55971    SES 19   2023-038B           348.05   26.89   19717   308   
55972    OBJECT C   2023-038C      347.87   26.90   19710   303
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline FutureSpaceTourist

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More SpaceX launch photos by Ben Cooper

Crosby Skipper + JRTI + 1069 returned to Port Canaveral yesterday (3/20) @ 6:25pm ET

Offline Targeteer

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55970    SES 18   2023-038A      348.37   26.89   19736   308
55971    SES 19   2023-038B           348.05   26.89   19717   308   
55972    OBJECT C   2023-038C      347.87   26.90   19710   303

55970    SES 18   2023-038A   718.21   15.13   35723   4653   
55971    SES 19   2023-038B   709.85   15.70   35756   4207
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline gongora

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Using an online calculator I found that looks like going from GTO-2195 to GTO-1550 so far

Offline Targeteer

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55970    SES 18   2023-038A   1432.76   0.09   35731   35712      
55971    SES 19   2023-038B   1433.21   0.09   35735   35725
Best quote heard during an inspection, "I was unaware that I was the only one who was aware."

Offline Slothman

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Apparentlythis was visible during a car race in Sebring



Offline gongora

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SES: SES-18 C-Band Satellite Goes Operational

Service transitions onto SES-18 represent one of the final milestones in SES’s U.S. C-band transition

Luxembourg, 27 June 2023 – SES announced today that the SES-18 satellite is now delivering services at 103 degrees West, replacing SES-3’s C-band payload. SES-18 is enabling SES to continue delivering C-band broadcast and radio services to millions of American homes, as well as provide other critical network communications services to the United States.

SES-19, which was launched in tandem with SES-18, has arrived at its orbital slot at 135 degrees West, where it is co-located with SES-22.

With this milestone, SES has completed the successful in-orbit deployment of five of the six new satellites as part of a broader Federal Communications Commission (FCC) program to clear a portion of C-band spectrum to enable wireless operators to deploy 5G services across the contiguous U.S. (CONUS). Satellite operators, including SES, have been tasked by the FCC to clear the lower 300MHz of C-band spectrum throughout CONUS by December 2023. The remaining sixth satellite, SES-23, is on the ground as a spare to provide redundancy in case of need.

SES-18 is critical to that effort, enabling SES to transition existing services to the upper C-band frequencies while maintaining uninterrupted services for customers. By providing contractual service protections to customers who receive video services in the U.S., SES-18  will enable SES to finish clearing C-band spectrum to help accomplish the FCC’s ambitious goals for American 5G innovation.

“We are excited to see our final two new C-band satellites in their orbital positions, and for SES-18 to provide continuity of service for our customers in the United States,” said Steve Collar, CEO at SES. “Thanks to our partners who have been an integral part of our C-band transition program, we look forward to completing the program ahead of the FCC’s accelerated relocation deadline.”

SES-18 and SES-19 were successfully launched by SpaceX’s Falcon 9 rocket in March 2023 from Cape Canaveral, Florida. SES-18 and SES-19 were designed, manufactured and assembled by Northrop Grumman.

More information on the SES-18 and SES-19 satellites can be found on the SES C-band in the U.S. newsroom.


Offline input~2

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The international designator for SES-18 in Space-Track TLE is wrong:
0 SES 18
1 55970U 23039A   23199.53672028 -.00000101  00000-0  00000+0 0  9992
2 55970   0.0591 253.6591 0000870 317.6770 174.8648  1.00271722  1449

Could someone at Space-Track.org please change 23039A to 23038A?
« Last Edit: 07/19/2023 12:50 pm by input~2 »

Offline input~2

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The international designator for SES-18 in Space-Track TLE is wrong:
0 SES 18
1 55970U 23039A   23199.53672028 -.00000101  00000-0  00000+0 0  9992
2 55970   0.0591 253.6591 0000870 317.6770 174.8648  1.00271722  1449

Could someone at Space-Track.org please change 23039A to 23038A?

This has now been corrected, thanks!
0 SES 18
1 55970U 23038A   23208.23653078 -.00000086  00000-0  00000-0 0  9996
2 55970   0.0584 256.0406 0001120 296.0260  94.6433  1.00271820  1514

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