October 30, 2017 | Author: Anonymous | Category: N/A
satellites (Oceansat-2, GCOM-W1, Megha-Tropiques, . Solar irradiance measurements: 2 on-board diffusers ......
Current Status of EUMETSAT satellite missions
Ken Holmlund Meteorological Operations Division
[email protected]
PSTG-2 12 – 14 June, Geneva, Switzerland
Content of talk:
EUMETSAT Polar System Status - Metop-A status - Dual Metop (A/B) operations - Metop-B launch date EUMETSAT Geostationary System Status -Current satellites (MFG and MSG) - MTG Third Party Services - Operational Agencies (NOAA, CMA, JMA, etc) - R&D satellites (Oceansat-2, GCOM-W1, Megha-Tropiques, CFOSAT, etc) Slide: 2
Metop-A Status (Launched October 2006) •
DHSA: Redundant CCU I/O Board Recovered after last PLSOL
•
HRPT:B unit in restricted operation. Complete longitudinal coverage zone active since 18th January 2011 (No transmission at higher latitudes in both hemispheres)
•
AMSU A1: Channel 7 is declared failed
•
MHS Local oscillator swap has improved H3/4 NEDT, but trend still continues – out of spec ca. Mid/late 2013
•
A-DCS: frequency complaints - no requests to stop operations.
•
GOME throughput loss in UV continues
Slide: 3
Objective of the Metop-A Lifetime Extension Review • Confirm that the Metop-A lifetime can be safely and usefully extended through the planned Out-of-Plane Manoeuvre in Q1 2013 • Assess the feasibility and need to extend Metop-A lifetime until the end of commissioning of Metop-C, thereby enabling a continuous dual-Metop operational scenario following the commissioning of Metop-B. • Assess the Metop-A End-of-Life scenario implications of the necessary lifetime extension to achieve the above and their compliance with the EUMETSAT space debris guidelines (under construction). Slide: 4
Contents of the Review Overview of the factors under consideration Orbital positioning Metop-A,B,C planning User needs for both Metop-A+ B products Need for satellite standby support Metop-A health status and outlook Approach to assessing feasibility of EOL operations Assessment of OOP Manoeuvre Planning and EOL implications including survivability (FDF presentation) • Compliance to EUMETSAT draft debris guidelines • Operations costs for extension • Recommendations vs. Objectives • • • • • • •
Slide: 5
Compliance to Draft EUMETSAT Space Debris Guidelines & ISO 24113 • Space Debris Mitigation Guidelines are under construction within EUMETSAT. • The applicable standard to these guidelines is ISO 24113. • not formally applicable to Metop (old satellite design) – best effort basis
• Note that the casualty risk is not stated in this ISO standard (nor in the IADC recommendations). • Both NASA Safety Standards for Space Debris Mitigation as well as ESA requirements limit the casualty risk to less than 10-4 [persons per event]. According to these requirements, if total risk is higher than this, uncontrolled re-entry is not allowed.
• Other aspects of the guidelines / ISO standard should be compliant based on the FDF analysis, using the methods applied by CNES for French law compliance. Slide: 6
MHS Channels 3 & 4 Degradation
Slide: 7
GOME-2 degradation SMR spectra for all four main channels, for the whole reference period and normalised to January 2007.
=> Reprocessing: New data set (G2RP‐R2) available this summer Slide: 8
GOME-2
Slide: 9
EPS-Metop Orbit Position Planning (with no LTAN drift) 225 180 135 90 Phase (degrees)
Fuel required to manoeuvre Metop-C as shown has negligible impact on lifetime
45
Metop-A Metop-B Metop-C Nom Ext B-U Deorb
Metop‐B EOL Metop-C commissioning on intermediate phase
0 200620072008200920102011201220132014201520162017201820192020202120222023202420252026 -45 -90
-135 Slide: 10
====== Acquisition and commissioning ______ Nominal Mission/Primary Satellite ______ Nominal Mission Extension/Primary Satellite - - - - - - Extended Mission/Back-up Satellite . . . . . . . Relocation before EOL/Unused Satellite
Metop‐A EOL
Low Earth Orbit Planning • 2011: • Antarctic Data Acquisition Demonstration Service (McMurdo) to improve data timeliness (9 out of 14 orbits) • Validation of combined Metop-A/B operations • 2012: • Metop-B launch, commissioning and routine ops start • 2014: • ADA Operational Service Start (all orbits, Q1/2) • 2013/2014 – Q1 2013: Metop-B to become primary operational satellite (ADA timeliness). – Sentinel-3A Launch (baseline Apr 2014), operations start Oct 2014 – Jason-3 Launch (Oct2014)
– Beyond 2014 – Metop-C – Jason CS 2018
– EPS Second Generation Slide: 11
– EUMETSAT Council July 2012 -> ESA Ministerial
Meteosat Long-Term Planning Perspective 2011
2012
N D
J F M A M J J A S O N D
2013
2014
J F M A M J J A S O N D
J F M A M J J A S O N D
MSG-3 Commissioning
2015 J F M A M J J A S O N D
MSG-4 Commissioning
2016
2017
J F M A M J J A S O N D
J F M A M J J A S O N D
Met-11 IOS
2018 J F M A M
MTG-I1 Commissioning
3.4ºW
• MSG-3 Launch
• Met-11 drift start
• Met-10 drift start • MSG-4 Launch
• MTG-I1 Launch
Met-9 0º
• Met-10 drift start • Met-11 drift stop
• Met-9 drift start • Met-10 drift stop
Met-11
3.5ºE (tbc)
Met-9
• Met-8 at 3° inclination
Met-8 9.5ºE
Met-10 • Met-9 RSS stop/Drift start • Met-10 drift stop/RSS start 57.5ºE
Met-7
Met-8
Met-7 • Met-8 takes over IODC
63ºE
• Met-8 at 5° NS inclination
• Met-8 RSS stop/Drift start • Met-9 drift stop/RSS start
67.5ºE
N D
2011
Slide: 12
J F M A M J J A S O N D
2012
J F M A M J J A S O N D
2013
• Met-7 disposal
J F M A M J J A S O N D
2014
J F M A M J J A S O N D
2015
J F M A M J J A S O N D
2016 Slide 12
J F M A M J J A S O N D
2017
J F M A M
2018
MTG: Flexible combined Imager (FCI) FCI main characteristics: • Coverage area: Full disc (FDC), FDC/2, FDC/3, FDC/4 • Instantaneous field of view 210 km north-south swath (with 30 km overlap). • Scanning alternately E-W and W-E, FDC in 10 minutes. • Calibration: black body, MND solar filter • Scan mirror with east-west and north-south axes. • Spatial Sampling Distance: 0.5, 1.0, 2.0 km • Spectral Channels: 4 @ HRFI, 12 @ FDHSI spatial resolutions, 1 fire channel • Data rate ~65 Mbps, mass ~290 kg, power ~510 W. • Heritage Europe: SEVIRI. HRFI = High Resolution Fast Imagery mission FDHSI = Full Disc High Spectral resolution Imagery mission Slide: 13
MTG: Lightning Imager (LI) LI main characteristics: • Coverage about equal to visible disc (instantaneous view). • Continuous measurements of triggered events / lightning triggered events. • Continuous measurements of background images, typically one every minute. • Datarate currently 30 Mbps, could be increased (e.g. 60 Mbps). • Ground pixel size required < 10 km at 45 degrees north latitude and subsatellite longitude, could be 3 px. Polarisation sensitivity