1. Rob Roebeling and Peter Miu
Instrument Specifications and Calibration Information GSICS GRWG & GDWG, March 2016, Tsukuba, Japan
Rob Roebeling and Peter Miu
EUMETSAT

2. Outline Introduction Towards Standardised Landing Pages (WMO-OSCAR)
Towards Common Nomenclature and Standards (CGMS White Paper)
Towards Instrument Specifications for Future Missions (Proposed Action)
Planning for

3. Introduction

4. CGMS and GSICS Actions CGMS-43: WGII/3 Action 43.01:
Calibration events logging task team to prepare a white paper outlining the set of parameters, the nomenclature, and the standards to be used for reporting on instrument calibration across space agencies.
GSICS GRWG/GDWG 2014 Action 33:
All GPRCs to provide satellite instrument specific links to calibration events to WMO-OSCAR.
Table 1: Nominated CGMS representatives of the Task Team on Calibration Events Logging
Name
CGMS Satellite Operator
Country
Dr. Li, Yuan
CMA
China
Mr. Miu, Peter
EUMETSAT
Germany
Dr. Bojkov, Bojan
ESA
Italy
Dr. Takahashi, Masaya
Meteorological Satellite Center (MSC) Japan Meteorological Agency (JMA)
Japan
Dr. Lee, Byung-Il
National Meteorological Satellite Center (KMA)
Korea
Mrs Yuhas, Cheryl
NASA
USA
Mr. Bali, Manik
NOAA
Dr. Lafeuille, Jerome
WMO
Switzerland

5. Schematic representation of current concept

6. Towards Standardised Landing Pages
WMO OSCAR
Towards Standardised Landing Pages
WMO-OSCAR (

7. WMO OSCAR WMO OSCAR has been updated in 2015;
WMO OSCAR now offers one link per Satellite per Instrument that points to a landing page with information on instrument calibration events;
Most Satellite Operators provided addresses of stable landing pages that guide the visitors to instrument calibration databases;
JMA and EUMETSAT adapted their stable landing pages to standardized concept proposed in CGMS-43 EUM-WP-55, which includes 4 mandatory categories, i.e.:
Instrument Specifications
Instrument Events
Data Outages
Instrument Monitoring
GSICS recommends Satellite Operators to prepare landing pages (one per satellite per instrument) using the standardized concept described in CGMS-43 EUM-WP-55;

8. Standardised Landing Pages concept (CGMS-43 EUM-WP-55)
Landing Page Categories
Instrument Specifications
Instrument Events
Instrument Monitoring
Data
Outages
Instrument Specifications
General information on the platform, instruments, and sensors operated in the mission that is relevant to all users of the satellite data (see OSCAR website).
Instrument Events
Database (and graphical interface) of events at satellite and processing level that are not occurring systematically and that impact the radiometric or geometric quality of the observations due to instruments calibrations, manoeuvres or miscellaneous.
Instrument Monitoring
Database (and graphical interface) of quasi continues information on the present state of the instruments and sensors operated on the platform;
Data Outages
Events that triggered the temporary or definitive end of the data collection.

9. Standardization of the Landing Pages - Status
Table: Status on preparing and releasing standardized landing pages on Instrument Specifications and Calibration events (situation February 2016)
EUMETSAT Landing Pages:
JMA Landing Pages:

10. Towards Common Nomenclature & Standards
(CGMS White Paper)

11. Common Nomenclature & Standards
CGMS-43: WGII/3 Action 43.01
Calibration events logging task team to prepare a white paper outlining the set of parameters, the nomenclature, and the standards to be used for reporting on instrument calibration across space agencies.
A Task Team with representatives from all Satellite Operators has been established
A White Paper presents for common nomenclature and standards for calibration events has been drafted and is being circulated for review;
The White Paper describes:
A breakdown of Instrument Events in three Categories I) (ir)regular events, II) processing events, III) data outages
An assessment and selection of the most relevant events per Category
A minimal set of mandatory metadata attributes for Instrument Events.
and provides:
Recommendations for WMO-OSCAR Landing Pages;
Recommendations for Common Nomenclature and Standards.

12. Common Nomenclature and Standards
It is proposed to group Instrument Events in three Categories
For each Category a list of most frequent events is drafted
Radiometric Calibration Events
general announcement
spacecraft maintenance
spacecraft anomaly
radiometric calibration drift 
radiometric calibration anomaly
radiometric calibration correction
Instrument Event Categories
CALIBRATION EVENTS
Radiometric Calibration Events
Geometric Calibration Events
PROCESSING EVENTS
Processing Updates
Reprocessing Events
DATA OUTAGES
Instrument Outages
Ground Segment Outages
Data Outages
general announcement
spacecraft maintenance
spacecraft anomaly
instrument maintenance
instrument anomaly
ground-segment maintenance
ground-segment anomaly
in-plane-manoeuvre
out-of-plane-manoeuvre
eclipse-season
lunar-eclipse

13. Common Nomenclature and Standards
It is proposed to provide for each event a limited set of mandatory attributes
Attributes name Attributes value
Mission type
LEO or GEO
Satellite
[satellite name]
Satellite details->
Link to satellite details
Instrument
[instrument name]
Instrument details->
Link to instrument details
Prelaunch characteristics ->
Link to mission specifications document
Impact
[impact class]
Start date
[<yyyy-mm-dd>T<hh:mm>Z]
End date
[<yyyy-mm-dd>T<hh:mm>Z] 
Product type
Product description
Category
[from list of categories]
Event type
[from lists of standard event type names]
Event description
[short description of the event]
Event report ->
Link to the full event report

14. Towards Instrument Specifications
for Future Missions

15. Landing Page – Instrument Specifications
Note:
WMO (Jerome Lafeuille) requests Satellite Operators to provide the Instrument Specifications of further instruments (typically 2-3 years before launch).
The concept of Landing Pages is suited to address this request if:
Satellite Operators would prepare landing pages for future instruments
Satellite Operators would provide the landing page links to WMO

16. Proposed Actions to GSICS
WMO recommends the Satellite Operators to list the most relevant Instrument Specifications of future missions about 3 to 4 years prior to launch ( Jerome Lafeuille);

17. Proposed Actions to
GDWG

18. Proposed Actions to GSICS
All Satellite Operators to provide satellite instrument specific links to calibration events to WMO-OSCAR.
All Satellite Operators to prepare landing pages per Satellite per Instrument that include the proposed four information categories;
All Satellite Operators to list the most relevant Instrument Specifications of future missions about 2 to 3 years prior to launch ( Jerome Lafeuille (new point of contact Stephan Bojinski);
All Satellite Operators to seek common naming conventions and common attribute standards for instrument events at Main-Category and Event Names level.

19. Proposed Actions to GSICS
CGMS-42: WGII/3 Action 42.02
CGMS Task Team for calibration information to identify a common set of parameters to be monitored as part of the calibration events logging and sensor performance monitoring.
Other space agencies to consider nominating a representative for the CGMS Task Team on calibration events logging.
CGMS Task Team to provide addresses of stable landing pages (one per satellite per instrument) to WMO-OSCAR.
CGMS Task Team to adopt stable landing pages to proposed main structure.
CGMS Task Team to prepare a White Paper providing a common proposal for the use of standard naming conventions for calibration event logging.

20. Thank You
Questions
and
Answers