Author Topic: Vega VV23 - THEOS 2, TRITON, rideshares - 9 October 2023 (01:36 UTC)  (Read 42632 times)

Offline Steven Pietrobon

  • Member
  • Senior Member
  • *****
  • Posts: 38605
  • Adelaide, Australia
    • Steven Pietrobon's Space Archive
  • Liked: 31822
  • Likes Given: 7753
CelesTrak has GP data for 2 objects from the launch (2023-155) of THEOS-2, TRITON, & 10 other payloads atop a Vega rocket from Europe’s Spaceport on Oct 9 at 0138 UTC: spacenews.com/vega-launches-…. Data for the launch can be found at: https://celestrak.org/NORAD/elements/table.php?INTDES=2023-155

The table is showing only eight payloads in 570 km orbits, compared to the expected 10 cubesats. ESA also said

"On this commercial flight, ten smaller secondary satellites were set to be released into orbit around 50 minutes after the two main passengers. All separation commands were properly executed and confirmation of the separation was acquired for eight satellites, the separation of the last two cubesats is still to be confirmed."

https://www.esa.int/Enabling_Support/Space_Transportation/Vega/Vega_flies_to_bring_satellites_to_space

Anybody know which cubesats failed to separate?
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline FutureSpaceTourist

  • Global Moderator
  • Senior Member
  • *****
  • Posts: 47434
  • UK
    • Plan 28
  • Liked: 80287
  • Likes Given: 36328
https://twitter.com/astropolo_space/status/1711208957459468740

Quote
#VV23
@Arianespace @ESA_transport @Avio_Group @CNES @BeyondGravity_S

Offline starbase

  • Full Member
  • ***
  • Posts: 370
  • Liked: 325
  • Likes Given: 93
CelesTrak has GP data for 2 objects from the launch (2023-155) of THEOS-2, TRITON, & 10 other payloads atop a Vega rocket from Europe’s Spaceport on Oct 9 at 0138 UTC: spacenews.com/vega-launches-…. Data for the launch can be found at: https://celestrak.org/NORAD/elements/table.php?INTDES=2023-155

The table is showing only eight payloads in 570 km orbits, compared to the expected 10 cubesats. ESA also said

"On this commercial flight, ten smaller secondary satellites were set to be released into orbit around 50 minutes after the two main passengers. All separation commands were properly executed and confirmation of the separation was acquired for eight satellites, the separation of the last two cubesats is still to be confirmed."

https://www.esa.int/Enabling_Support/Space_Transportation/Vega/Vega_flies_to_bring_satellites_to_space

Anybody know which cubesats failed to separate?

I couldn't find any deployment sequence or timeline for the CubeSats, and unfortunately there were no callouts for them on the webcast. The only info I found so far:

"The first release of the cubesats were of PVCC, CSC-1 and ANSER-F2, followed by three further releases of the other spacecraft."

Source: https://www.seradata.com/after-a-couple-of-days-delay-vega-1-is-launched-carrying-12-satellites/
bit.ly/SpaceLaunchCalendar ☆ bit.ly/SpaceEventCalendar

Offline GWR64

  • Full Member
  • ****
  • Posts: 1773
  • Germany
  • Liked: 1674
  • Likes Given: 1034
CelesTrak has GP data for 2 objects from the launch (2023-155) of THEOS-2, TRITON, & 10 other payloads atop a Vega rocket from Europe’s Spaceport on Oct 9 at 0138 UTC: spacenews.com/vega-launches-…. Data for the launch can be found at: https://celestrak.org/NORAD/elements/table.php?INTDES=2023-155

The table is showing only eight payloads in 570 km orbits, compared to the expected 10 cubesats. ESA also said

"On this commercial flight, ten smaller secondary satellites were set to be released into orbit around 50 minutes after the two main passengers. All separation commands were properly executed and confirmation of the separation was acquired for eight satellites, the separation of the last two cubesats is still to be confirmed."

https://www.esa.int/Enabling_Support/Space_Transportation/Vega/Vega_flies_to_bring_satellites_to_space

Anybody know which cubesats failed to separate?

ESTCube-2 does not respond.
https://www.linkedin.com/posts/sirli-sarapuu_estonian-student-satellite-estcube-2-was-activity-7117923248415158273-4esW?trk=public_profile_share_view

Quote
Sirli Sarapuu

Communications Lead at Tudengisatelliit / Owner at Sirli Disain OÜ
2 Tage

🛰️Estonian Student Satellite ESTCube-2 was launched to orbit on 9.10 at 4:36 Estonian time. While it is great that our satellite is in orbit, there is an unexpected problem with the satellite and we haven't gotten into contact with it yet.

🛰️Our team has analyzed several possible causes of why the satellite has not sent a signal or is not sending anymore (assuming some of the early & uncertain packets were ESTCube-2's). As of now, we think that the batteries could be too drained to boot up properly.

🛰️We have added a lot of solar cells on ESTCube-2 and we hope that in a few days it has gathered enough energy to boot correctly. From that point on we have commands already in place to put it into a deep sleep mode and then in between, command the cubesat as necessary.

🛰️Together with radio amateur and cubesat communities will continue listening for the ESTCube-2 signal, while investigating the satellite's table model behavior during the initialization sequence.  We cannot rule out an option that a critical system or component, such as solar cells or power harvesting components, have been broken during the launch, in which case we will not be able to find out what exactly happened.

🛰️Keep your fingers crossed for us and hopefully everything will get figured out and fixed!

Offline starbase

  • Full Member
  • ***
  • Posts: 370
  • Liked: 325
  • Likes Given: 93
So now we have confirmation that ESTCube 2 and ANSER-Leader didn't deploy and were lost during reentry of the AVUM upper stage.

"Following the VEGA VV23 launch last Sunday, ARIANESPACE has now the strong suspicion that your satellites ESTCube-2 and ANSER-Leader were unfortunately not separated from their respective deployers."

Source: https://europeanspaceflight.com/two-vega-vv23-payloads-failed-to-deploy/
bit.ly/SpaceLaunchCalendar ☆ bit.ly/SpaceEventCalendar

Offline GWR64

  • Full Member
  • ****
  • Posts: 1773
  • Germany
  • Liked: 1674
  • Likes Given: 1034
sad,
Avio's press release is therefore nonsense.

Quote
... Following two other ignitions of the AVUM, ten cubesats from the auxiliary payload all successfully separated; the confirmation of the separation was acquired for 8 satellites, the separation of the last 2 cubesats is still to be confirmed. ...
https://www.avio.com/press-release/vega-vv23-mission-successfully-completed

 :o

Offline jcm

  • Senior Member
  • *****
  • Posts: 3596
  • Jonathan McDowell
  • Somerville, Massachusetts, USA
    • Jonathan's Space Report
  • Liked: 1237
  • Likes Given: 763
Space-Track now renamed THEOS-2 as "T2V" Anyone familiar with this designation?
-----------------------------

Jonathan McDowell
http://planet4589.org

Offline Steven Pietrobon

  • Member
  • Senior Member
  • *****
  • Posts: 38605
  • Adelaide, Australia
    • Steven Pietrobon's Space Archive
  • Liked: 31822
  • Likes Given: 7753
Space-Track now renamed THEOS-2 as "T2V" Anyone familiar with this designation?

THEOS 2 Vehicle?
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Skyrocket

  • Extreme Veteran
  • Senior Member
  • *****
  • Posts: 2623
  • Frankfurt am Main, Germany
  • Liked: 924
  • Likes Given: 170
Space-Track now renamed THEOS-2 as "T2V" Anyone familiar with this designation?

"V" is possibly for "Very High Resolution" (VHR)

According to following link, the full name is "Thailand Earth Observation System - 2 Main VHR Satellite"

https://space.oscar.wmo.int/satellites/view/theos_2_main
« Last Edit: 10/17/2023 04:47 pm by Skyrocket »

Offline lenny97

  • Full Member
  • *
  • Posts: 123
  • Pescara, Abruzzo - Italy
  • Liked: 241
  • Likes Given: 235
Thread with info from ESA about the VV23 SSMS failure.
https://twitter.com/SpaceVoyaging/status/1714980652884324398
Quote
During the Information session from ESA’s 317th Council for Media, ESA says that the Vega VV23 flight is now under official investigation.
The investigation is led by Arianespace and Avio, with support from ESA.

https://twitter.com/SpaceVoyaging/status/1714980856975024421
Quote
They assume that the two Cubesats remained attacched to the SSMS (deployer) but the command was sent correctly.
The SSMS is provided by Avio.

https://twitter.com/SpaceVoyaging/status/1714981434174087184
Quote
Asked about the future flights of Vega, they said that the next flight won't use the SSMS Deployer and that Vega flights are not grounded due to this failure.
Unclear if the next mission using SSMS will be delayed or not, and how we'll be updated about the investigation...

https://twitter.com/Skyrocket71/status/1715020607492874387
Quote
Do you know if the failed deployer is considered to be part of the payload or of the launch vehicle?

https://twitter.com/SpaceVoyaging/status/1715025269013029113
Quote
The deployer is the SSMS, which is not part of the launch vehicle, but an addition for certain missions that requires multiple small satellites to be deployed.
The SSMS system is produced also by Avio, the manufacturer of *most parts* of Vega...

[Edit: zubenelgenubi]
« Last Edit: 10/19/2023 03:43 pm by zubenelgenubi »
Founder of www.spacevoyaging.com — Independent Space News Blog
I'm based in Pescara, Italy. Music addicted.

Offline GWR64

  • Full Member
  • ****
  • Posts: 1773
  • Germany
  • Liked: 1674
  • Likes Given: 1034
The deployer for Estcube-2 was from Astrofein.
https://www.estcube.eu/blog/ESTCube--2%27s-journey-into-space

And the Anser leader deployer was also from Astrofein.
But this block contained Anser leader, Anser follower 1 + 2 and the N3SS cubesat.
https://community.element14.com/technologies/sensor-technology/b/blog/posts/anser-cubesats-launch-into-orbit-to-monitor-the-iberian-waters
2nd picture
« Last Edit: 10/22/2023 10:06 am by GWR64 »

Tags:
 

Advertisement NovaTech
Advertisement Northrop Grumman
Advertisement
Advertisement Margaritaville Beach Resort South Padre Island
Advertisement Brady Kenniston
Advertisement NextSpaceflight
Advertisement Nathan Barker Photography
0