1. S3VT-OC videoconference E. Kwiatkowska / M. Bouvet 17/18 March 2016

2. Mission status Launch was flawless
Satellite In Orbit Verification concluded last week: no major issue
OLCI status: currently instrument fully functional
SLSTR status: currently only visible channel currently on

3. First Image stories for OLCI and SLSTR now available

4. OLCI status First EO image and calibration on 29 Feb 2016
All calibration sequences already carried out (radiometric calibration, degradation monitoring, spectral calibration, dark currents)
L0 data released by ESRIN and EUMETSAT for cal/val activities and distributed to commissioning teams
L1 processor at ESTEC delivering on demand data
Some initial L2 were also processed successfully at ESRIN
Instrument data quality is very good after two weeks of work!
Key on-going calibration commissioning activities at ESTEC:
Radiometric calibration
Spectral calibration
Geometric verification
L1 product verification

5. OLCI spectral response functions
Following analysis of the on-ground characterisation data, an update of OLCI spectral/radiometric characteristics and in particular the spectral response functions (SRF) was released just after launch:
This update includes:
SRFs at 3 positions inside each OLCI camera swath (edges and centre) for each spectral band = 21 x 3 x 5 SRFs. These data are NOT included in the L1 products. If you only want 1 SRF per spectral band => choose the SRF in the center of module 3 (smile < 1.5 nm for all spectral bands)
Per CCD detector (3700 in total): centre wavelengths, bandwidths and in-band solar irradiance at 1 AU => these data are also included in each L1 product

6. OLCI spectral characteristics

7. OLCI status: calibration timeline
L+1w
L+2w
L+3w
L+4w
L+5w
L+6w
L+7w
L+8w
L+9w
L+10w
L+11w
L+12w
L+13w
L+14w
L+15w
L+16w
L+17w
L+18w
L+19w
L+20w
L+21w
S3 optical activity
S3 LEOP
OLCI Schedule
OLCI SIOV activities
SIOV
OLCI in routine mode
Cal/Val - Performance Verification
Cal/Val Initial product verification
S01 x1 x x3
S02
S03
S04
(x)
S05
S06
x6b
x6a
S07
S08
x4, x5a,b x4
S09
Reviews
MTR
IOCR

8. OLCI spectral and radiometric calibration updates
The Satellite Characterisation and Calibration Database (SCCDB) will be updated several times before Mid Term Review (MTR) and possibly In Orbit Commissioning Review (IOCR) following results from in-flight spectral and radiometric calibrations
New SRFs data might be released to all users when/if consolidated after MTR

9. SLSTR status First EO image one week after OLCI
Data quality of visible channel is very good at first glance
No SWIR and TIR channels yet on (23 March at earliest after decontamination and detector cooling)

10. EUMETSAT Marine Centre

11. EUMETSAT Marine Centre ground segment status
Level-0 processed operationally on the operational platform
Level-1B processing being validated on the reference platform
Level-1B processing planned to move to the operational platform next week
Level-1B processing accomplished for selected acquisitions

12. EUMETSAT Marine Centre data access
Helpdesk:
EUMETCast
Main method of disseminating NRT data at EUMETSAT. It involves satellite and terrestrial methods.
User Support
User Registration and Support, Product Discovery, Helpdesk, etc
Online Data Access (ODA)
Rolling archive of 1 month of data supporting ftp/http access
EUMETSAT Data Centre
Complete historical archive of all EUMETSAT data including S-3 marine data

13. Sentinel-3 OLCI product summary
OLCI Products Summary for Sentinel-3A and Sentinel-3B
(Auxiliary Data excluded)
Product Type
Level
Description
PDGS Product Category
OL_0_EFR___
Full Resolution ISPs
Internal
OL_0_CR0_ & _CR1_
Calibration with no spectral relaxation and with spectral relaxation
OL_1_SPC___ 1
Wavelength characterization from spectral calibration
OL_1_RAC___
Dark offset and gain coefficients from radiometric calibration
OL_1_EFR___
Full Resolution calibrated top of atmosphere radiances (L1B)
User
OL_2_WFR___ 2
Full Resolution Marine products and Atmospheric by-products
OL_2_LFR___
Full Resolution Land and Atmospheric parameters
OL_1_ERR___
Reduced Resolution calibrated top of atmosphere radiances (L1B)
OL_2_WRR___
Reduced Resolution Marine products and Atmospheric by-products
OL_2_LRR___
Reduced Resolution Land and Atmospheric parameters
Sentinel-3 OLCI L2 operational products
Algorithms
Normalised Water Leaving Reflectances
Antoine Morel 1999
Chlorophyll Concentration in open ocean
Morel 2007 OC4ME
Chlorophyll Concentration in coastal waters
Doerffer NN
Total suspended matter concentration
Diffuse attenuation coefficient
Morel 2007
Coloured Detrital and Dissolved Material absorption
Doerffer NN
Photosynthetically active radiation
iPAR Aiken Moore 1997
Aerosol Optical Depth over water
Aerosol Angstrom exponent over water
Integrated Water Vapour Column
Lindstrot D Var
OLCI L1 distributed by EUMETSAT & ESA
OLCI Land products distributed by ESA

14. EUMETSAT Sentinel-3 user marine products
Cast sat
ODA
Data Centre
Timeliness
Resolution
Size per orbit uncompressed (comp.) (GB)
Product Unit Length
SLSTR SL_L1_RBT 
NRT, NTC
full
69.5 (29.0)
Frame [3 min]
SLSTR SL_L2_WST
(GHRSST L2P)
NRT
2.3 (0.75)
NTC
Full orbit
OLCI OL_1_EFR
28.6 (21.5)
OLCI OL_1_ERR
reduced
1.9 (1.4)
Full daylight orbit [2666 sec]
OLCI OL_2_WFR
28.4 (14.2)
OLCI OL_2_WRR
1.9 (0.95)
SRAL SR_1_SRA
0.42
Full orbit dump
STC, NTC
Half orbit
SRAL SR_2_WAT
NRT, STC
0.2

15. EUMETSAT Sentinel-3 data dissemination
Timeliness Categories
EUMETCast satellite
ODA
Data Centre
Near Real Time (NRT) – 3h √
Short Time Critical (STC) – 48h
Non Time Critical (NTC) – 30d
Reprocessed – ad hoc
Product Types
EUMETCast
ODA
Data Centre
User Products (operations: all users, commissioning: S3VT) √
(selected products)
Internal Products (authorised users, S3VT)
Datasets (all users)
Extracts (S3VT)
special ftp access

16. EUMETCast satellite and terrestrial
Currently distributing S3 dummy files (also distributed test data)
EUMETCast satellite over all Europe
Request to the EC to disseminate S3 L2 marine data to Africa via EUMETCast satellite
Set up of EUMETCast terrestrial at NOAA STAR
Set up of EUMETCast terrestrial at National Computational Infrastructure, Canberra, Australia
Definition of EUMETCast terrestrial data requirements
EUMETCast information:

17. Sentinel-3 OLCI L1/L2 Commissioning data availability
Data should become available to S3VT (S3VT as authorised users) about the time of the Commissioning MTR (Mid-term check point) pending the green light from the Commissioning team and the joint ESA and EUMETSAT agreement
OLCI MTR is currently planned for 26 April 2016
Only patchy data availability is expected
Announcement to the S3VT about the opening of the data subscription will be released in early April
Announcement will include details of datasets and extracts (minifiles) and the data access points
S3VT members will have to subscribe to start receiving data
Data will be accessible using valid S3VT credentials via all three means of EUMETSAT data dissemination but starting dates may be staggered: EUMETCast, ODA, and EUMETSAT Data Centre

18. Data subscription open soon
EUMETSAT EO Portal:
Registration open
Data subscription open soon
Subscription to data services
EUMETCast
Online Data Access
EUMETSAT Data Centre (Long Term Archive)
EO Portal
eoportal.eumetsat.int
Product Navigator
navigator.eumetsat.int
User Notification s
Helpdesk

19. S3VT-OC data request
S3VT-OC data request summarized in the S3VT- Implementation Plan
S3VT Website: S3VT-OC documents
S3VT-OC data request summary
S3VT-IP
Open a user account on the EO Portal
Receive an announcement to subscribe
Subscribe to the data service
Receive the data
Please be understanding if we are not yet fully matching your data needs in the Commissioning phase of the mission

20. Cal/val timeline 26 April 2016: OLCI Mid-Term Review
18 May 2016: SLSTR Mid-Term Review
1st OLCI QWG is planned end of June 2016
Expert workshop with teams engaged in validation/verification of the L1/L2 products is planned end of June 2016
In Orbit Commissioning Review (IOCR): Mid-July 2016
Public release of data right after In Orbit Commissioning Review unless major issues identified
S3VT-OC meeting in Oct/Nov 2016 (date and location still to be decided)

21. S3VT-OC videoconferences
We will set several 2-hour videoconferences:
Thursday 21st of April 15:00 CET (for Europe/US) and Friday 22nd of April at 09:00 CET (for Australia) => just before the L1/L2 data are released
Thursday 26th of May 15:00 CET (for Europe/US) and Friday 27th of May at 09:00 CET (for Australia) => to hear about data access and your first verification/validation of the data
Thursday 23rd of June 15:00 CET (for Europe/US) and Friday 24th of June at 09:00 CET (for Australia) => to hear from you about verification/validation of the data and feed this back to the IOCR (mid-July)

22. Don’t miss this incredible timelapse of the launch:
Questions?
Don’t miss this incredible timelapse of the launch:
S3 orbit prediction ESOV: cfi.esa.int/index.php/applications/esov