Ariane bsat 4b & galaxy 30, mev-2

solly

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it secend time it replace date to be now 3 august
after friday night delay 24 hour
let see next week will be launch
 

solly

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new date as soon
 

solly

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at the Final Assembly Building has enabled August 14 to be envisioned as the launch date for Ariane Flight 253 (VA253), with the possibility of an optimization in the process for the mission to be performed one day earlier.

If the flight is on August 14, liftoff will occur as early as possible during the following launch window:

Between 5:33 p.m. and 6:20 p.m. Washington, D.C. time,
Between 6:33 p.m. and 7:20 p.m. Kourou, French Guiana time,
Between 21:33 and 22:20 Universal time (UTC),
Between 11:33 p.m. and 12:20 a.m. Paris time, in the night of August 14 to 15,
Between 06:33 a.m. and 07:20 a.m. Japan time, in the morning of August 15.
 

hvdh

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New date August 15, launch window starts at 21:33 UTC.
 

solly

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Flight VA253: Ariane 5 – Galaxy 30/MEV-2/BSAT-4b – Launch targeted for August 15 due to weather conditions



August 13, 2020

The Ariane 5 with its three satellite payloads for Flight VA253 was transferred today to the Guiana Space Center’s ELA-3 launch zone. However, due to currently unfavorable wind conditions at altitude above the Guiana Space Center, Arianespace has decided not to initiate the final phase of launch preparation operations.

The soonest possible launch date for Flight VA253 is Saturday, August 15, as early as possible during the following launch window:
  • Between 5:33 p.m. and 6:20 p.m. Washington, D.C. time,
  • Between 6:33 p.m. and 7:20 p.m. Kourou, French Guiana time,
  • Between 21:33 and 22:20 Universal time (UTC),
  • Between 11:33 p.m. and 12:20 a.m. Paris time, in the night of August 15 to 16,
  • Between 06:33 a.m. and 07:20 a.m. Japan time, in the morning of August 16.
 

hvdh

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Globecast feed "CDL clean": 7.0°E, 11096 V 4937 3/4 8PSK

Youtube:
 
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FC GD

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hvdh

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Maybe 22:04 UTC if the latest weather ballon data says OK.
 

solly

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9 minute to wait meteo
 
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Channel Hopper

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30 minutes before they light the blue touchpaper.


That is one big firework
 

solly

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hvdh any know footprint of mev 2 ?
 

hvdh

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hvdh any know footprint of mev 2 ?
Have not seen footprints for both MEV-1 and MEV-2.
They are not of interest, the only communication is TT&C (narrow band).
MEV-2 is capable of TT&C (space to earth) in the 3.7...4.2 and 11.45...12.25 GHz bands.
You can study these documents for details.
 
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solly

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this onwer f mev 1 and mev 2
let check more info about footprint and freuqncy plan
 

Marcus_21

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Subject 2020-056A, this is BSAT 4B. Active telemetry frequencies 11704,30 LHCP and 11708,50 LHCP.
BSAT-4B_11704.30_L.png BSAT-4B_11708.50_L.png

Object 2020-056B, looks like the MEV-2. Active telemetry frequencies 4199,80 RHCP and 3701,00 RHCP.
MEV-2_3701.00_R.png MEV-2_4199.80_R.png

Object 2020-056C, this should be the Galaxy 30. Active telemetry frequency 4198,50 LHCP.
Galaxy-30_4198.50_L.png
 

hvdh

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SpaceTrak also just came with the names, and it matches your observations!

What they have not figured out yet is 2020-053A and B, Express 80 and 103, guess TT&C freq. are unknown...
 

Marcus_21

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By observing very carefully, the apogee, perigee and inclination parameters. object 2020-053A looks like Express 103 and 2020-053B of Express 80.

I apologize for the off topic..
 

hvdh

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BSat-4b arrived at 105.1°E testing location a few days ago.
And Galaxy 30 just arrived at 84.55°E testing location.

The docking of MEV-2 to Intelsat 10-02 is planned for February or March 2021.
 

Marcus_21

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The MEV-2 has almost reached the 1°W position. it is not yet fully stabilized but it is very close.

Since approaching the GEO orbit, they turned off the telemetry at frequencies 3701,00 R, 4199,80 R and turned on the 3944,50 R, 3955,50 R ... then they turned off the 3944,50, staying on only 3955,50 R.

MEV-2_3955.50_R.png
 

Marcus_21

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Rectification... the frequency 3944,50 is active. It transmits a data stream that occupies a bandwidth of 2 MHz. Maybe it will be the camera image, which will be used for docking?

MEV-2_3944.50_R.png MEV-2_Range-3940-3960_R.png
 

FC GD

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The MEV-2 has almost reached the 1°W position. it is not yet fully stabilized but it is very close.

Since approaching the GEO orbit, they turned off the telemetry at frequencies 3701,00 R, 4199,80 R and turned on the 3944,50 R, 3955,50 R ... then they turned off the 3944,50, staying on only 3955,50 R.

View attachment 134371

Rectification... the frequency 3944,50 is active. It transmits a data stream that occupies a bandwidth of 2 MHz. Maybe it will be the camera image, which will be used for docking?

View attachment 134373 View attachment 134374

Exciting :O
 
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