ops forum sma validation pti 15.08.2008
DESCRIPTION
This seminar will provide an overview of the new ESTRACK ground station at Santa Maria, Azores, and its first operational usage for the ATV launch in March. Santa Maria station was established to support the Ariane 5 launch of ATV that took place in March this year.TRANSCRIPT
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Santa Maria Groundstation
Validation and Support to Ariane-5 ATV
OPS-G Forum
Gerhard Billig
15 July 2008
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Agenda
1. Groundstation Validation2. Infrastructure3. Operational Setup and Preparations4. Launch Operations5. Outlook
- Upgrade of Perth groundstation- Support to other Launcher families
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Groundstation Validation- Internally Tested Subsystems -
• Tracking Tests with Caltower / Satellites• Dedicated Autotrack Tests
• Monitoring and Control• TM reception and processing
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Autotrack Validation
• Angular velocity of launcher (as seen from the groundstation) was much higher than that of satellites
• Autotrack (dual frequency) was mandatory and primary mode of tracking
• Aircraft was chosen as carrier for transmitters• Trajectory was down-scaled to meet aircraft constraints:
• Height: ≈ 1200m
• Speed: ≈ 200km/h• Placement of antennas and power connection was difficult
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Track of Ariane-5 over SMA• 1st pass:
Min Slant Range: ≈ 180km at elevation 48°
• 2nd pass: Min Slant Range: 1100 km at elevation 10°
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Actual Flightpath
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Antenna positioning in aircraft
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Equipment Installation
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SMA Infrastructure Development: Original View
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Finalised Installation at SMA
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Inauguration
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Operations Preparations and
Launch Support
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Requirements for Launch Support from SMA
• Tracking: Dual-frequency AutotrackDO-Programtrack
• TM Reception and Storage• TM Extraction and Forward to CSG• Event Detection and Forward• Voice Communications
Comms
Acores
Voice
S-band
CSG/Kourou
TM Receiver
Voice
TM (CVI)
Pointing (DO)
Antenna Control
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Ariane-5 ATV: Mission Overview
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Ariane-5 ATV Tracking Network - Drivers -
• Mission Duration: 1.5 Orbits (0.5 orbits for GTO)• Long Cruise Phases complicate accurate orbit prediction
(Ariane inertial platform sensors)
• Inclusion of Radars at Europe resolved predication accuracy problems
• ISS was used as tracking target to exercise network-wide tracking campaigns
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Santa Maria Groundstation: Schedule for Operations
• March 2007: Meeting with CNES/CSG• May 2007: Operational Training with CNES• October 2007: Operations KoM with CNES at SMA
Start of Operational Preparations• November 2007: Stand-Alone Tests• January 2008: Operational Qualification with CNES• February 2008: Mission Readiness Tests (internal)• 9th March 2008: Launch of Ariane-5 ATV
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Outlook: Upgrade of Perth groundstation
-90
-60
-30
0
30
60
90
-180 -150 -120 -90 -60 -30 0 30 60 90 120 150 180
Ariane 5-ECA+Fregat
Soyuz+Fregat
CAR
NAN
KSH
PERT
REDUAUS
ACO
BAT
KRUBAN
TRI
KRN
-90
-60
-30
0
30
60
90
-180 -150 -120 -90 -60 -30 0 30 60 90 120 150 180
AR5 SSO
1500_sso
1200_sso
700_sso500_sso300_sso
PARE
MIG
PERT
SPIT
WAL
BER
STH
ANT
KRU
MASUOKI
DONG
KER
REF ELV
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Outlook: Support to other Launcher Families
• Vega SSO launch trajectory
• Vega Maiden Launch
• Soyuz