Author Topic: Galileo Deployment  (Read 61641 times)

Offline GWR64

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Re: Galileo Deployment
« Reply #120 on: 02/21/2022 05:29 pm »
GSAT 0103 works again, now on rubidium atomic clock
No problem, the IOVs are not among the satellites with the faulty rubidium clocks.

https://www.gsc-europa.eu/notice-advisory-to-galileo-users-nagu-2022008

Quote
NOTICE ADVISORY TO GALILEO USERS (NAGU) 2022008
DATE GENERATED (UTC): 2022-02-21 10:45

NAGU TYPE: USABLE
NAGU NUMBER: 2022008
NAGU SUBJECT: USABLE AS FROM 2022-02-20
NAGU REFERENCED TO: 2022007
START DATE EVENT (UTC): 2022-02-20 12:51
END DATE EVENT (UTC): N/A
SATELLITE AFFECTED: GSAT0103
SPACE VEHICLE ID: 19
SIGNAL(S) AFFECTED: ALL

EVENT DESCRIPTION: GALILEO SATELLITE GSAT0103 (ALL SIGNALS) IS USABLE SINCE/AS OF 2022-02-20 BEGINNING 12:51 UTC. PAYLOAD ON RAFS CLOCK. GALILEO SATELLITE GSAT0103 (ALL SIGNALS) WAS UNAVAILABLE FROM 2022-02-03 BEGINNING 23:44 UTC.
« Last Edit: 02/21/2022 05:56 pm by GWR64 »

Offline russianhalo117

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Offline GWR64

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Re: Galileo Deployment
« Reply #122 on: 05/14/2022 08:33 am »
Problems with GSAT0210 (FOC-FM10) SVID E01.
The stupid thing is, the satellite is in plane A. The other defective satellites GSAT0104 in plane C and GSAT0204 in plane B.
So let's hope that GSAT0210 can be used again soon. Otherwise it will take longer for a replacement to be ready for use.
...

Unfortunately, GSAT 0210 has been out of service for 2 weeks.
https://www.gsc-europa.eu/notice-advisory-to-galileo-users-nagu-2022015
A replacement will likely not be usable until 2024. (with launch on Ariane 6)  :( 
Currently are in plane
A: 7 satellites usable
B: 8 satellites usable, later maybe 9 with GSAT 0224 (ID E10) on intermediate slot B15
C: 7 satellites usable
« Last Edit: 05/14/2022 08:49 am by GWR64 »

Offline Rik ISS-fan

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Re: Galileo Deployment
« Reply #123 on: 05/14/2022 10:41 am »
So there aren't even the minimal required 24 operational satellites. 8 in each of the three planes. While the plan was for two spaces in each plane. And this won't change for a couple of years.
To make the situation worse, the live expectancy of the Galileo satellites was 12 years, the IOV satellites reach this age by 2023/'24.
AFAIK GSAT:2023 & 2024 were initially intended to replace (IOC) 0101 & 0102, but 0204 failed early so needed replacement sooner (all plane B). The first two FOC satellites went to the wrong orbit removing 0201&0202 from the fleet. The other two IOC satellites 0103 & 0104 only have 0103 operating in plane C because 0104 has clock problems.
The next youngest satellites are 0203 & 0204 plane B, 0205 & 0206 plane A (with 2010 also down in A), 0208 & 0209 in plane C. These were launched in 2015, need to be replaced way before 2027.

I think Astris is needed sooner, to deliver 4 Gen1 batch 3 satellites to one plane, like was don with Ariane 5ES.
Europe and the EU are for clean space, right? Is leaving a ULPM in MEO orbit in accordance to this principle. With an Astris kick-stage the ULPM can be deorbited, and the Astris stays in MEO. I think for both the remaining Galileo gen.1 satellites and for the Gen.2 satellites the Ariane 62+Astris is the preferred launcher.
Ariane 62 launches the satellites + Astris into a MEO transfer orbit. The Astris propels the satellites into the MEO orbit. (perigee increase) 
« Last Edit: 05/14/2022 11:00 am by Rik ISS-fan »

Offline GWR64

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Re: Galileo Deployment
« Reply #124 on: 05/20/2022 04:30 pm »
GSAT0210 is transmitting signals. SV ID 01 is back in the almanac and listed as healthy.
A "healthy" NAGU does not yet exist.

Offline GWR64

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Re: Galileo Deployment
« Reply #125 on: 05/26/2022 07:05 pm »
Quote
NOTICE ADVISORY TO GALILEO USERS (NAGU) 2022018
DATE GENERATED (UTC): 2022-05-26 09:45

NAGU TYPE: USABLE
NAGU NUMBER: 2022018
NAGU SUBJECT: USABLE AS FROM 2022-05-25
NAGU REFERENCED TO: 2022015
START DATE EVENT (UTC): 2022-05-25 16:11
END DATE EVENT (UTC): N/A
SATELLITE AFFECTED: GSAT0210
SPACE VEHICLE ID: 01
SIGNAL(S) AFFECTED: ALL

EVENT DESCRIPTION: GALILEO SATELLITE GSAT0210 (ALL SIGNALS) IS USABLE SINCE/AS OF 2022-05-25 BEGINNING 16:11 UTC. PAYLOAD ON PHM CLOCK. GALILEO SATELLITE GSAT0210 (ALL SIGNALS) WAS UNAVAILABLE FROM 2022-04-29 BEGINNING 02:38 UTC.

23  :)

Offline GWR64

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Re: Galileo Deployment
« Reply #126 on: 07/02/2022 06:58 pm »
3 weeks planned maintenance on GSAT 0103.
This satellite often causes problems lately.
Galileo needs a launch vehicle, now!
Would a Falcon 9 launch work? The orbit is challenging. ASDS landing or expendable?
Could the 2nd stage be removed from Galileo orbit?  ???

https://www.gsc-europa.eu/notice-advisory-to-galileo-users-nagu-2022025

Offline Zed_Noir

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Re: Galileo Deployment
« Reply #127 on: 07/02/2022 07:34 pm »
3 weeks planned maintenance on GSAT 0103.
This satellite often causes problems lately.
Galileo needs a launch vehicle, now!
Would a Falcon 9 launch work? The orbit is challenging. ASDS landing or expendable?
Could the 2nd stage be removed from Galileo orbit?  ???

https://www.gsc-europa.eu/notice-advisory-to-galileo-users-nagu-2022025
If transport for the satellites can be arranged. There are at least 2 spare sets of Falcon Heavies available for whatever challenging orbit is required. If the Falcon 9 lacks sufficient performance.  ;)

Offline GWR64

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Re: Galileo Deployment
« Reply #128 on: 07/03/2022 06:29 am »
3 weeks planned maintenance on GSAT 0103.
This satellite often causes problems lately.
Galileo needs a launch vehicle, now!
Would a Falcon 9 launch work? The orbit is challenging. ASDS landing or expendable?
Could the 2nd stage be removed from Galileo orbit?  ???

https://www.gsc-europa.eu/notice-advisory-to-galileo-users-nagu-2022025
If transport for the satellites can be arranged. There are at least 2 spare sets of Falcon Heavies available for whatever challenging orbit is required. If the Falcon 9 lacks sufficient performance.  ;)

OHB suggested the Falcon-9, which is why I asked.
The satellites can be flown from Kourou (2 are there) or from Belgium to Cape Canaveral, why should that be a problem?
A Falcon-9 Heavy can launch this for sure. 
This would allow the remaining 4 gen. 1 satellites for orbit C to be launched together.
But are available Falcon-9 Heavy really in stock?

https://twitter.com/sciguyspace/status/1505879400641871872
« Last Edit: 07/03/2022 08:14 am by GWR64 »

Offline Zed_Noir

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Re: Galileo Deployment
« Reply #129 on: 07/03/2022 04:23 pm »
<snip>
OHB suggested the Falcon-9, which is why I asked.
The satellites can be flown from Kourou (2 are there) or from Belgium to Cape Canaveral, why should that be a problem?
A Falcon-9 Heavy can launch this for sure. 
This would allow the remaining 4 gen. 1 satellites for orbit C to be launched together.
But are available Falcon-9 Heavy really in stock?
.....
Satellite transport isn't an issue if the An-124 isn't required.

Think there is the Falcon Heavy set for the Psyche mission that just announced a delay and at least another set for a delay DoD mission in storage at the SpaceX Florida facilities. There were 5 Falcon Heavy mission scheduled for 2022 with a possibility of none of them launching in 2022.  :(

Offline GWR64

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Re: Galileo Deployment
« Reply #130 on: 07/03/2022 04:31 pm »
I belive, the Boeing-747 and the IL-76 have been used so far.

A problem with a 4 satellite launch could be the dispenser. that would probably have to be built first.
But even if the launch is only a year away, it would be a win.
The timeframe for the first launch of Ariane 6 is still unclear. Thereafter the launch cadence will be slowly increased.
And Galileo is not the only customer. It needs 5 A-62 launches for the remaining Generation-1 satellites!

off topic:I know the situation with Falcon Heavy, also with Viasat-3.  :(
« Last Edit: 07/03/2022 05:48 pm by GWR64 »

Offline GWR64

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Re: Galileo Deployment
« Reply #131 on: 07/09/2022 05:45 am »
What? the new GSAT0223  :o

https://twitter.com/GalileoSats/status/1545090055131234316

https://www.gsc-europa.eu/notice-advisory-to-galileo-users-nagu-2022026

Together with the maintenance of GSAT0103, this means a reduction to 21 satellites for about 2 weeks.
And GSAT0224 is not yet operational.

 ???




Offline GWR64

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Re: Galileo Deployment
« Reply #132 on: 07/23/2022 04:01 pm »
3 weeks planned maintenance on GSAT 0103.
This satellite often causes problems lately.
...
https://www.gsc-europa.eu/notice-advisory-to-galileo-users-nagu-2022025

The maintenance has been extended by 2 weeks until August 6th.

https://www.gsc-europa.eu/notice-advisory-to-galileo-users-nagu-2022029

hm...  ???

Offline GWR64

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Re: Galileo Deployment
« Reply #133 on: 08/05/2022 08:06 pm »
GSAT0103 is back (E19)

Quote
NOTICE ADVISORY TO GALILEO USERS (NAGU) 2022032
DATE GENERATED (UTC): 2022-08-05 12:15

NAGU TYPE: USABLE
NAGU NUMBER: 2022032
NAGU SUBJECT: USABLE AS FROM 2022-08-05
NAGU REFERENCED TO: 2022029
START DATE EVENT (UTC): 2022-08-05 07:51
END DATE EVENT (UTC): N/A
SATELLITE AFFECTED: GSAT0103
SPACE VEHICLE ID: 19
SIGNAL(S) AFFECTED: ALL

EVENT DESCRIPTION: GALILEO SATELLITE GSAT0103 (ALL SIGNALS) IS USABLE SINCE/AS OF 2022-08-05 BEGINNING 07:51 UTC. PAYLOAD ON RAFS CLOCK. GALILEO SATELLITE GSAT0103 (ALL SIGNALS) WAS UNAVAILABLE FROM 2022-07-02 BEGINNING 12:41 UTC.

GSAT0223 (E34) is also back for a few days, but not for long
Quote
NOTICE ADVISORY TO GALILEO USERS (NAGU) 2022030
DATE GENERATED (UTC): 2022-08-02 14:45

NAGU TYPE: USABLE
NAGU NUMBER: 2022030
NAGU SUBJECT: USABLE AS FROM 2022-08-01
NAGU REFERENCED TO: 2022026
START DATE EVENT (UTC): 2022-08-01 16:00
END DATE EVENT (UTC): N/A
SATELLITE AFFECTED: GSAT0223
SPACE VEHICLE ID: 34
SIGNAL(S) AFFECTED: ALL

EVENT DESCRIPTION: GALILEO SATELLITE GSAT0223 (ALL SIGNALS) IS USABLE SINCE/AS OF 2022-08-01 BEGINNING 16:00 UTC. PAYLOAD ON PHM CLOCK. GALILEO SATELLITE GSAT0223 (ALL SIGNALS) WAS UNAVAILABLE FROM 2022-07-11 BEGINNING 04:51 UTC UNTIL 2022-07-30 ENDING 15:00 UTC, FROM 2022-07-30 BEGINNING 18:00 UTC UNTIL 2022-07-31 ENDING 19:00 UTC AND FROM 2022-08-01 BEGINNING 01:00 UTC UNTIL 2022-08-01 ENDING 16:00 UTC.
Quote
NOTICE ADVISORY TO GALILEO USERS (NAGU) 2022031
DATE GENERATED (UTC): 2022-08-05 11:45

NAGU TYPE: PLN_OUTAGE
NAGU NUMBER: 2022031
NAGU SUBJECT: PLANNED OUTAGE FROM 2022-08-11 UNTIL 2022-08-29
NAGU REFERENCED TO: N/A
START DATE EVENT (UTC): 2022-08-11 00:00
END DATE EVENT (UTC): 2022-08-29 17:00
SATELLITE AFFECTED: GSAT0223
SPACE VEHICLE ID: 34
SIGNAL(S) AFFECTED: ALL

EVENT DESCRIPTION: GALILEO SATELLITE GSAT0223 (ALL SIGNALS) WILL BE UNAVAILABLE FROM 2022-08-11 BEGINNING 00:00 UTC. OUTAGE RECOVERY ESTIMATED ON 2022-08-29 17:00 UTC.

GSAT0224 (E10) the other new one seems healthy,
according to galmon.eu, my phone showed E10 in the late afternoon
this NAGU is currently active, a USABINIT is still pending

Quote
NOTICE ADVISORY TO GALILEO USERS (NAGU) 2022027
DATE GENERATED (UTC): 2022-07-07 15:30

NAGU TYPE: GENERAL (NOTICE)
NAGU NUMBER: 2022027
NAGU SUBJECT: GSAT0224 CONTRIBUTION TO I/NAV MESSAGE TESTING ACTIVITIES
NAGU REFERENCED TO: 2021024
START DATE EVENT (UTC): 2022-07-11 04:45
END DATE EVENT (UTC): 2022-08-29 17:00
SATELLITE AFFECTED: GSAT0224

EVENT DESCRIPTION: GSAT0224 WILL BE INVOLVED IN I/NAV MESSAGE TESTING ACTIVITIES AND, THEREFORE, DURING THIS TIME USERS WILL OBSERVE INTERMITTENT PERIODS OF UNHEALTHY/ HEALTHY SIS. IT IS REMINDED THAT GSAT0224 IS NOT YET PART OF THE OPERATIONAL CONSTELLATION UNTIL THE RELEVANT USABINIT NAGU IS ISSUED. USERS SHALL REFER TO SERVICE NOTICE #10.
« Last Edit: 08/05/2022 08:20 pm by GWR64 »

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