ASCAT Level 2 Soil Moisture Reprocessing Phase 1 - Dataset Description

Transcription

1 ASCAT Level 2 Soil Moisture Reprocessing Phase 1 - Dataset Description Doc.No. : Issue : v3 Date : 4 November 2009 WBS : EUMETSAT Eumetsat-Allee 1, D Darmstadt, Germany Tel: Fax: EUMETSAT The copyright of this document is the property of EUMETSAT.

2 Document Change Record Issue / Revision Date DCN. No Changed Pages / Paragraphs v1 30/09/09 Version submitted to PVB meeting v3 04/11/09 First Release Page 2 of 25

3 Table of Contents 1 Introduction Purpose, Scope and Structure Input Data and Reprocessing Period Identification of this Reprocessed Dataset Applicable Documents Reference Documents Abbreviations and Acronyms General Limitations Reprocessing Logic and Configuration Reprocessing Logic and Architecture Processing Software Configuration Description of the Dataset Identifiers Filenames MPHR Number of Files and Data Volume Ordering of the ASCAT Reprocessed Dataset Ordering Mechanisms Media Reading Data Delivered on LTO Tapes Using the Data Flag Advice Manoeuvres Open Issues and Anomalies K p Values VEADRs Gaps Soil Moisture Values Appendix A Supporting Ancillary Information A.1 Instrument Outages A.2 Manoeuvres Appendix B List of Missing Products in Delivery A due to L1B PPF Anomalies Page 3 of 25

4 1 INTRODUCTION 1.1 Purpose, Scope and Structure This document describes the ASCAT reprocessed Level 2 Soil Moisture phase 1 dataset (ASCL2SMR1 hereafter) product specifications and product identifiers. The ASCL2SMR1 dataset has been produced using the ASCAT L1B to L2 Soil Moisture operational processor and configuration. The main purpose of this dataset is to provide a consistent L2 soil moisture product, generated with consistent σ 0 calibration since the beginning of the ASCAT mission (the operational processor is only generating products since May 2008), in order to support the consistent evaluation and validation of L2 data processing over one full seasonal cycle. For a detailed validation of the ASCL2SMR1 dataset, we refer the reader to [AD0]. 1.2 Input Data and Reprocessing Period The input ASCAT L1B data correspond to the ASCL1R1 dataset. See [RD7] and [AD0] for the description and validation reports of that dataset, respectively. Reprocessing has been carried out over the full 2007/2008 period (two years). However, due to a combination of problems with both the input L0 data having multiple gaps during the beginning of the mission, and an anomaly in the ASCAT L1B processor software to handle these situations, we are not in the position at this point of releasing the data corresponding to the first five months of Furthermore, resources necessary for the validation of the full dataset are currently also limited (we are currently working on a prototype system), and as a consequence the validation of the second half of 2008 has not been possible yet. In order to release resources at EUMETSAT and not to delay further the delivery of data that would allow EUMETSAT partners and users to carry on with the activities outlined above, a way forward has been agreed, which consists of carrying out the release of these datasets in two deliveries: Delivery A: Period between 01/07/2007 and 31/10/2008 (17 months) Delivery B: The remaining files to complete the 2007/2008 period This document covers the description of Delivery A and will be updated when Delivery B is carried out. Page 4 of 25

5 1.3 Identification of this Reprocessed Dataset Release name Release date Reprocessing version Product format version PGS version PFS version ASCL2SMR1 10/11/ v1.0 v2 6.6 GPFS version The individual L2 soil moisture products can be identified in the EUMETSAT product catalogue ( with the following names: Catalogue product name ASCSMO02R1 ASCSMR02R1 Product description ASCAT L2 soil moisture on 25 km swath grid ASCAT L2 soil moisture on 12.5 km swath grid 1.4 Applicable Documents AD0 ASCAT reprocessing Phase 1 validation EUM/OPS/REP/09/3033 v2.0 report AD1 EPS Generic Product Format Specification EPS.GGS.SPE v6.6 (GPFS) AD2 WARP-NRT 2.0 Reference Manual (PGS) ASCAT Soil Moisture Report v1.0 Series No. 14 AD3 ASCAT L2 Soil Moisture Product Format EUM/OPS-EPS/SPE/07/0343 v2 Specification (PFS) AD4 ASCAT Product Guide mentation/technical_and_scientific_docu mentation/eps_product_guides/?l=en EUM/OPS-EPS/MAN/04/ Reference Documents RD5 RD6 Bartalis, Z. (2009). ERS-ASCAT Backscatter and Soil Moisture Intercomparison - First Results. de Rosnay, P.: Sensitivity of ASCAT soil moisture first guess departure to incidence angle ASCAT Soil Moisture Working Note No. 6, Institute of Photogrammetry and Remote Sensing, Vienna University of Technology, Austria. ECMWF Research department memorandum 0953, July 2009 RD7 ASCL1R1 dataset description EUM/OPS/DOC/09/2481 v2b Page 5 of 25

6 1.6 Abbreviations and Acronyms AD Applicable Document ANX Ascending Node Crossing ASCAT Advanced SCATterometer ASCL1R1 ASCAT L1 Phase 1 reprocessing data release ASCL2SMR1 ASCAT L2 Soil Moisture Phase 1 reprocessing data release CMOD5 State-of-the-art scatterometer wind geophysical model for C-band ECMWF European Centre for Medium-Range Weather Forecasts EPS EUMETSAT Polar System ERS European Remote-sensing Satellite ESA European Space Agency EUMETSAT EUropean Organisation for the Exploitation of METeorological SATellites GCM Gain Compression Monitoring GPFS Generic Product Format Specification IP In-Plane L0/1/1A/1B/2 Level 0/1/1A/1B/2 Metop METeorological OPerational satellite NP Noise Power MPHR Main Product Header Record NP Noise Power OOP Out-Of-Plane PFS Product Format Specification PGP Power Gain Product PGS Product Generation Specification PLSOL PayLoad Switch-OffLine PPF Product Processing Facility RD Reference Document RMS Root Mean Square SPHR Secondary Product Header Record TUWien/IPF Vienna University of Technology / Institute of Photogrammetry and Remote Sensing VEADR Variable External Auxiliary Data Record VIADR Variable Internal Auxiliary Data Record 1.7 General Limitations Period covered for Delivery A: 01/07/2007 to 31/10/2008 (17 months). Note that the target period for the whole dataset is 01/01/2007 to 31/12/2008. The parameter database for the calculation of ASCAT soil moisture index values is based on ERS data. Page 6 of 25

7 2 REPROCESSING LOGIC AND CONFIGURATION 2.1 Reprocessing Logic and Architecture The dedicated ASCAT reprocessing system architecture has been laid out such that an ideal 1:1 scalability of the performance with available CPU time could be achieved. This was important in order to appropriately assign resources that would allow us to reprocess at our target rate of one month per day. In order to achieve this, independent processing units were defined, which could be processed in parallel regardless of their chronology. For soil moisture processing, the calculation of every single soil moisture value from the L1B data is independent. That would allow us in principle to parallelise the processing down to the individual soil moisture values. However, the processing time is so fast that we decided to take full L1B dump files (i.e., corresponding to a dump of raw data over our EPS acquisition ground station in Svalbard) as the smallest processing unit. By doing so, and by allocating ten CPUs to the reprocessing experiment, the full two-year period was reprocessed in three days. For each L1B dump file in the ASCL1R1 dataset, a processing unit is defined as: Input data: the ASCAT L1B SZO or SZR dump files Processor s/w: an instance of the ASCAT L2 operational processor Configuration: ERS-ASCAR σ 0 bias correction file Resources: each processing unit is handled by 1 CPU Output: ASCAT L2 SMO or SMR products Metop orbits are defined between Ascending Node Crossing (ANX) times. Dump files are defined as corresponding to a raw-data dump over our EPS acquisition ground station in Svalbard. When using the word orbit to refer to a particular dump in this document, we will be referring to the field ORBIT_START in the main header record of each file, i.e., the orbit to which the first measurement in the file corresponds. For complete dumps going over an ANX, the field ORBIT_STOP in the main header record of the same file will typically equal ORBIT_START Processing Software Configuration ASCAT L2 soil moisture processing s/w Date introduced on operational processor version /05/2009 ASCAT L2 Version Date introduced on operational processor auxiliary files ASCA_SMC /12/2008 Parameter database /10/2008 Page 7 of 25

8 3 DESCRIPTION OF THE DATASET 3.1 Identifiers Reprocessed files in general, and the ASCL2SMR1 release in particular, are identified by the generic EPS identifiers for reprocessed data using filename and Master Product Header Record tags and information (see [AD1]). These are further discussed below Filenames Reprocessed EPS files can be identified by their filenames for which the disposition flag is set to R. As an example, a reprocessed ASCAT L2 file will have the following EPS file naming convention: ASCA_SM_02_M02_[start sensing-time]_[stop sensing time]_r_o_[processing time] MPHR The MPHR of a reprocessed EPS orbit file will hold the following identifiers, which characterise this particular reprocessed dataset: PROCESSING_CENTRE = ERF1 PROCESSOR_MAJOR_VERSION = 1 for ASCL2SMR1 PROCESSOR_MINOR_VERSION = 3 for ASCL2SMR1 FORMAT_MAJOR_VERSION = 10 FORMAT_MINOR_VERSION = 0 PROCESSING_MODE = R DISPOSITION_MODE = O 3.2 Number of Files and Data Volume The table below refers only to ASCL2SMR1 Delivery A. Product type No. of files Data volume Delivery A Data volume Delivery A (compressed) ASCA_SMO_ GB 21 GB ASCA_SMR_ GB 82 GB All GB 103 GB Page 8 of 25

9 4 ORDERING OF THE ASCAT REPROCESSED DATASET 4.1 Ordering Mechanisms The data can be retrieved via the EUMETSAT archive, which can be accessed from the EUMETSAT web page or directly at Via the archive user interface, any user can query product availability for a certain period of time in the Query and Order tab. In the result of the query, the column VERSION ID indicates whether it is an original product from the NRT stream (VERSION ID = 0) or a reprocessed product (VERSION ID > 0). By default, only the latest version of a product is visible. By selecting any particular product and clicking on the magnifying glass icon, the meta data associated with a product can be inspected, including the full filename and MPHR contents, and thus identification of the reprocessing dataset can be uniquely confirmed (refer to Section 3.1 in this document). For users interested in a longer period of data, the tab Specific Product Order offers the possibility of carrying out a Bulk order for the desired time. As in a normal query, the latest version of a product within the required time frame will be delivered by default, and it could be that the delivered order contains a mixture of product versions. In order to get a consistent dataset only, there are several possibilities: Selecting the Processing Mode option to be Reprocessing will deliver only the latest reprocessed data. Inserting the Version of Product Algorithm (e.g. 1.3 ) will ensure that a consistently processed dataset, whether coming from the NRT stream or a reprocessing data release, is delivered. If a user is interested in data corresponding to a particular reprocessing release, it is also possible to send an to ops@eumetsat.int specifying the specific release tag, e.g. ASCL2SMR1 in this case, and also the product type of interest (ASCA_SMO or ASCA_SMR), or by using directly the catalogue names of the individual products, i.e., ASCSMR02R1 or ASCSMO02R. If a user wanted to access a product version older than the latest available via the EUMETSAT archive interface for any period of time, it is advisable to send an directly to ops@eumetsat.int, and any request can be of course clarified through direct interaction with the EUMETSAT help desk, supported by the ASCAT experts in house. With respect to the static auxiliary data used in the generation of the products, it can also be ordered online from the EUMETSAT archive or by to ops@eumetsat.int. In both cases, reference is needed to the filenames, which are listed below. For online ordering, the generation date (third time tag in the filename) corresponds to the column Nominal Date in the output query detailed list. For the ASCL2SMR1 dataset, the static auxiliary files used in the L1B processing have the following filenames: Page 9 of 25

10 ASCA_SMC 1.2 ASCA_SMC_xx_M02_ Z_xxxxxxxxxxxxxxZ_ Z_xxxx_FM2xxxTCE The parameter database is not available to users. 4.2 Media During the online order process via the EUMETSAT archive user interface, it is possible to specify the data transfer mechanism, for example an FTP to a specified address or direct HTML access. Depending on what products and for what period, the volume requested might require a delivery on LTO-2 or LTO-4 tapes. Other media are also possible depending on the requested volumes. 4.3 Reading Data Delivered on LTO Tapes Data delivered on LTO-2 and LTO-4 tapes shall be read with the b 2048 option when using tar to extract or list the file content. For example: tar tvf b 2048 [path of tape device, eg /dev/..] > catalogue_tape[#].txt (for producing a catalogue file) tar xvf b 2048 [path of tape device, eg /dev/..] (for extraction of files) Page 10 of 25

11 5 USING THE DATA 5.1 Flag Advice The use of flags in ASCAT L2 soil moisture products is already discussed in [AD4]. Note that ASCAT L2 soil moisture products contain also the input L1B data used. However, not all the L1B flags are included in the ASCAT L2 soil moisture products, only the summary flag (F_USE). Because of a few limitations of this flag, found during the validation of the ASCL1R1 dataset (see [AD0]), we recommend users interested in L1B data to use the ASCL1R1 dataset directly (and not the L1B contained in the ASCL2SMR1 dataset), in order to be able to make full use of the individual L1B flags. 5.2 Manoeuvres In-Plane (IP) and Out-of-Plane (OOP) manoeuvres are flagged via F_USABLE according to the duration of the burns and an estimated platform stabilisation time in the case of OOP manoeuvres. In Appendix A, a list of all manoeuvres carried out until now is given. Page 11 of 25

12 6 OPEN ISSUES AND ANOMALIES 6.1 K p Values After the ASCAT L1B reprocessing exercise, a revision of the K p algorithm implemented in the L1B processor has been carried out, and the new prototyped values are higher (5% on average) than those given in this dataset (3% on average). We do not endorse therefore the values provided in this dataset. For users interested in K p, we would rather suggest waiting until the next reprocessing exercise (Phase 2), where this will be corrected. 6.2 VEADRs The information about the processor configuration version used is usually provided in VEADRs. However, in the VEADRs contained in the products within this dataset, the version number of the files has not been specified. Instead, because the configuration used for this reprocessing exercise is static, the user is directed to Section Gaps Several data gaps are present in the dataset. They are due to different reasons: 1. Solid State Recorder and ground acquisition station anomalies, resulting in small gaps (a few instrument source packets) around Svalbard. 2. L0 processing environment anomalies, resulting in gaps of one to several orbits. Some of these data will be recovered in the next reprocessing exercise. 3. Instrument calibration operations, resulting in gaps of about 5 minutes of data when flying over the calibration ground transponders in Turkey (or over the UK in Spring of 2007). 4. Gain Compression Monitoring operations, resulting in gaps of about 6 minutes of data, mostly over land. 5. Instrument outages (PLSOLs), resulting in gaps of up to several days. 6. Out-of-Plane (OOP) manoeuvres, resulting in gaps of several orbits. All files affected by the first type of gaps (1) listed above have been excluded from Delivery A. Most of them are within the period of Jan-May 2007, but there are additionally a few orbits within the rest of the reprocessing period. These orbits will be made available with Delivery B. A list is provided in Appendix B. Spacecraft and instrument operations leading to the last four types of gaps (3 to 6) are recorded in Appendix A. The presence of gaps or missing data within a file can be identified via the field MILLISECONDS_OF_DATA_MISSING in the MPHR. Page 12 of 25

13 6.4 Soil Moisture Values The parameter database for the calculation of ASCAT soil moisture index values is based on ERS data. In spite of an L1B bias correction prior to the soil moisture retrieval, an incident angle-dependent residual bias is still present in the corrected L1B data. As a consequence, the ASCAT soil moisture product is slightly noisier than expected. More details can be found in [AD0]. With over two years of ASCAT data currently available, a fully ASCAT-based parameter database is being generated. As soon as this is available, another reprocessing exercise will be carried out (Phase 2). Page 13 of 25

14 APPENDIX A SUPPORTING ANCILLARY INFORMATION A.1 Instrument Outages START ORBIT REASON DURATION Comments :43: External Calibration 00:05:40 Transponder testing in UK :23: External Calibration 00:05:40 Transponder testing in UK :03: External Calibration 00:05:40 Transponder testing in UK :42: External Calibration 00:05:40 Transponder testing in UK :28: External Calibration 00:05:40 Transponder testing in UK :40: External Calibration 00:05:40 Transponder testing in UK :59: External Calibration 00:05:40 Transponder testing in UK :39: External Calibration 00:05:40 Transponder testing in UK :05: External Calibration 00:05:40 Transponder testing in UK :37: External Calibration 00:05:40 Transponder testing in UK :23: Gain Compression Monitoring 00:06: :35: External Calibration 00:05:40 Transponder testing in UK :23: External Calibration 00:05:40 Transponder testing in UK :56: External Calibration 00:05:40 Transponder in Turkey :17: External Calibration 00:05:40 Transponder in Turkey :15: External Calibration 00:05:40 Transponder in Turkey :56: External Calibration 00:05:40 Transponder in Turkey :54: External Calibration 00:05:40 Transponder testing in UK :33: External Calibration 00:05:40 Transponder in Turkey :16: External Calibration 00:05:40 Transponder in Turkey :59: External Calibration 00:05:40 Transponder testing in UK :39: External Calibration 00:05:40 Transponder testing in UK :10: External Calibration 00:05:40 Transponder in Turkey :09: External Calibration 00:05:40 Transponder in Turkey :09: Gain Compression Monitoring 00:06: :16: External Calibration 00:05:40 Transponder in Turkey Page 14 of 25

15 :17: External Calibration 00:05:40 Transponder in Turkey :15: External Calibration 00:05:40 Transponder in Turkey :16: External Calibration 00:05:40 Transponder in Turkey :12: Gain Compression Monitoring 00:06: :17: External Calibration 00:05:40 Transponder in Turkey :17: External Calibration 00:05:40 Transponder in Turkey :15: External Calibration 00:05:40 Transponder in Turkey :16: External Calibration 00:05:40 Transponder in Turkey :14: External Calibration 00:05:40 Transponder in Turkey :12: External Calibration 00:05:40 Transponder in Turkey :14: Gain Compression Monitoring 00:06: :05: OFF Mode due to PL-SOL 03 days 11:50: :16: External Calibration 00:05:40 Transponder in Turkey :17: External Calibration 00:05:40 Transponder in Turkey :15: External Calibration 00:05:40 Transponder in Turkey :54: Gain Compression Monitoring 00:06: :16: External Calibration 00:05:40 Transponder in Turkey :10: External Calibration 00:05:40 Transponder in Turkey :08: External Calibration 00:05:40 Transponder in Turkey :05: Gain Compression Monitoring 00:06: :16: External Calibration 00:05:40 Transponder in Turkey :17: External Calibration 00:05:40 Transponder in Turkey :15: External Calibration 00:05:40 Transponder in Turkey :16: External Calibration 00:05:40 Transponder in Turkey :02: External Calibration 00:05:40 Transponder in Turkey :03: External Calibration 00:05:40 Transponder in Turkey :01: External Calibration 00:05:40 Transponder in Turkey :52: Gain Compression Monitoring 00:06: :02: External Calibration 00:05:40 Transponder in Turkey :20: External Calibration 00:05:40 Transponder in Turkey :59: External Calibration 00:05:40 Transponder in Turkey :20: External Calibration 00:05:40 Transponder in Turkey :18: External Calibration 00:05:40 Transponder in Turkey Page 15 of 25

16 :00: External Calibration 00:05:40 Transponder in Turkey :57: External Calibration 00:05:40 Transponder in Turkey :19: External Calibration 00:05:40 Transponder in Turkey :58: External Calibration 00:05:40 Transponder in Turkey :16: External Calibration 00:05:40 Transponder in Turkey :38: External Calibration 00:05:40 Transponder in Turkey :55: External Calibration 00:05:40 Transponder in Turkey :36: External Calibration 00:05:40 Transponder in Turkey :17: External Calibration 00:05:40 Transponder in Turkey :15: External Calibration 00:05:40 Transponder in Turkey :56: External Calibration 00:05:40 Transponder in Turkey :36: External Calibration 00:05:40 Transponder in Turkey :54: External Calibration 00:05:40 Transponder in Turkey :15: External Calibration 00:05:40 Transponder in Turkey :34: External Calibration 00:05:40 Transponder in Turkey :55: External Calibration 00:05:40 Transponder in Turkey :13: External Calibration 00:05:40 Transponder in Turkey :34: External Calibration 00:05:40 Transponder in Turkey :32: External Calibration 00:05:40 Transponder in Turkey :13: External Calibration 00:05:40 Transponder in Turkey :11: External Calibration 00:05:40 Transponder in Turkey :33: External Calibration 00:05:40 Transponder in Turkey :12: External Calibration 00:05:40 Transponder in Turkey :30: External Calibration 00:05:40 Transponder in Turkey :09: External Calibration 00:05:40 Transponder in Turkey :31: External Calibration 00:05:40 Transponder in Turkey :29: External Calibration 00:05:40 Transponder in Turkey :10: External Calibration 00:05:40 Transponder in Turkey :08: External Calibration 00:05:40 Transponder in Turkey :29: External Calibration 00:05:40 Transponder in Turkey :08: External Calibration 00:05:40 Transponder in Turkey :27: External Calibration 00:05:40 Transponder in Turkey :06: External Calibration 00:05:40 Transponder in Turkey Page 16 of 25

17 :27: External Calibration 00:05:40 Transponder in Turkey :25: External Calibration 00:05:40 Transponder in Turkey :06: External Calibration 00:05:40 Transponder in Turkey :04: External Calibration 00:05:40 Transponder in Turkey :26: External Calibration 00:05:40 Transponder in Turkey :05: External Calibration 00:05:40 Transponder in Turkey :23: External Calibration 00:05:40 Transponder in Turkey :02: External Calibration 00:05:40 Transponder in Turkey :24: External Calibration 00:05:40 Transponder in Turkey :22: External Calibration 00:05:40 Transponder in Turkey :03: External Calibration 00:05:40 Transponder in Turkey :54: Gain Compression Monitoring 00:06: :01: External Calibration 00:05:40 Transponder in Turkey :22: External Calibration 00:05:40 Transponder in Turkey :01: External Calibration 00:05:40 Transponder in Turkey :20: External Calibration 00:05:40 Transponder in Turkey :59: External Calibration 00:05:40 Transponder in Turkey :20: External Calibration 00:05:40 Transponder in Turkey :18: External Calibration 00:05:40 Transponder in Turkey :59: External Calibration 00:05:40 Transponder in Turkey :19: External Calibration 00:05:40 Transponder in Turkey :16: External Calibration 00:05:40 Transponder in Turkey :37: External Calibration 00:05:40 Transponder in Turkey :35: External Calibration 00:05:40 Transponder in Turkey :17: External Calibration 00:05:40 Transponder in Turkey :15: External Calibration 00:05:40 Transponder in Turkey :56: External Calibration 00:05:40 Transponder in Turkey :36: External Calibration 00:05:40 Transponder in Turkey :54: External Calibration 00:05:40 Transponder in Turkey :15: External Calibration 00:05:40 Transponder in Turkey :33: External Calibration 00:05:40 Transponder in Turkey :54: External Calibration 00:05:40 Transponder in Turkey :12: External Calibration 00:05:40 Transponder in Turkey Page 17 of 25

18 :34: External Calibration 00:05:40 Transponder in Turkey :32: External Calibration 00:05:40 Transponder in Turkey :13: External Calibration 00:05:40 Transponder in Turkey :11: External Calibration 00:05:40 Transponder in Turkey :32: External Calibration 00:05:40 Transponder in Turkey :12: External Calibration 00:05:40 Transponder in Turkey :30: External Calibration 00:05:40 Transponder in Turkey :09: External Calibration 00:05:40 Transponder in Turkey :30: External Calibration 00:05:40 Transponder in Turkey :28: External Calibration 00:05:40 Transponder in Turkey :10: External Calibration 00:05:40 Transponder in Turkey :08: External Calibration 00:05:40 Transponder in Turkey :29: External Calibration 00:05:40 Transponder in Turkey :08: External Calibration 00:05:40 Transponder in Turkey :26: External Calibration 00:05:40 Transponder in Turkey :05: External Calibration 00:05:40 Transponder in Turkey :27: External Calibration 00:05:40 Transponder in Turkey :25: External Calibration 00:05:40 Transponder in Turkey :06: External Calibration 00:05:40 Transponder in Turkey :04: External Calibration 00:05:40 Transponder in Turkey :25: External Calibration 00:05:40 Transponder in Turkey :05: External Calibration 00:05:40 Transponder in Turkey :23: External Calibration 00:05:40 Transponder in Turkey :02: External Calibration 00:05:40 Transponder in Turkey :23: External Calibration 00:05:40 Transponder in Turkey :56: Gain Compression Monitoring 00:06: :21: External Calibration 00:05:40 Transponder in Turkey :03: External Calibration 00:05:40 Transponder in Turkey :00: External Calibration 00:05:40 Transponder in Turkey :22: External Calibration 00:05:40 Transponder in Turkey :01: External Calibration 00:05:40 Transponder in Turkey :19: External Calibration 00:05:40 Transponder in Turkey :58: External Calibration 00:05:40 Transponder in Turkey Page 18 of 25

19 :20: External Calibration 00:05:40 Transponder in Turkey :18: External Calibration 00:05:40 Transponder in Turkey :59: External Calibration 00:05:40 Transponder in Turkey :57: External Calibration 00:05:40 Transponder in Turkey :18: External Calibration 00:05:40 Transponder in Turkey :58: External Calibration 00:05:40 Transponder in Turkey :16: External Calibration 00:05:40 Transponder in Turkey :37: External Calibration 00:05:40 Transponder in Turkey :55: External Calibration 00:05:40 Transponder in Turkey :35: External Calibration 00:05:40 Transponder in Turkey :34: OFF Mode due to PL-SOL 02 days 19:51: :15: External Calibration 00:05:40 Transponder in Turkey :33: External Calibration 00:05:40 Transponder in Turkey :54: External Calibration 00:05:40 Transponder in Turkey :12: External Calibration 00:05:40 Transponder in Turkey :33: External Calibration 00:05:40 Transponder in Turkey :32: External Calibration 00:05:40 Transponder in Turkey :13: External Calibration 00:05:40 Transponder in Turkey :11: External Calibration 00:05:40 Transponder in Turkey :32: External Calibration 00:05:40 Transponder in Turkey :11: External Calibration 00:05:40 Transponder in Turkey :30: External Calibration 00:05:40 Transponder in Turkey :09: External Calibration 00:05:40 Transponder in Turkey :30: External Calibration 00:05:40 Transponder in Turkey :28: External Calibration 00:05:40 Transponder in Turkey :09: External Calibration 00:05:40 Transponder in Turkey :07: External Calibration 00:05:40 Transponder in Turkey :29: External Calibration 00:05:40 Transponder in Turkey :08: External Calibration 00:05:40 Transponder in Turkey :26: External Calibration 00:05:40 Transponder in Turkey :05: External Calibration 00:05:40 Transponder in Turkey :26: External Calibration 00:05:40 Transponder in Turkey :25: External Calibration 00:05:40 Transponder in Turkey Page 19 of 25

20 :06: External Calibration 00:05:40 Transponder in Turkey :04: External Calibration 00:05:40 Transponder in Turkey :25: External Calibration 00:05:40 Transponder in Turkey :04: External Calibration 00:05:40 Transponder in Turkey :22: External Calibration 00:05:40 Transponder in Turkey :02: External Calibration 00:05:40 Transponder in Turkey :49: Gain Compression Monitoring 00:06: :23: External Calibration 00:05:40 Transponder in Turkey :21: External Calibration 00:05:40 Transponder in Turkey :02: External Calibration 00:05:40 Transponder in Turkey :00: External Calibration 00:05:40 Transponder in Turkey :22: External Calibration 00:05:40 Transponder in Turkey :01: External Calibration 00:05:40 Transponder in Turkey :19: External Calibration 00:05:40 Transponder in Turkey :58: External Calibration 00:05:40 Transponder in Turkey :19: External Calibration 00:05:40 Transponder in Turkey :17: External Calibration 00:05:40 Transponder in Turkey :59: External Calibration 00:05:40 Transponder in Turkey :57: External Calibration 00:05:40 Transponder in Turkey :18: External Calibration 00:05:40 Transponder in Turkey :57: External Calibration 00:05:40 Transponder in Turkey :15: External Calibration 00:05:40 Transponder in Turkey :37: External Calibration 00:05:40 Transponder in Turkey :54: External Calibration 00:05:40 Transponder in Turkey :35: External Calibration 00:05:40 Transponder in Turkey :16: External Calibration 00:05:40 Transponder in Turkey :14: External Calibration 00:05:40 Transponder in Turkey :55: External Calibration 00:05:40 Transponder in Turkey :35: External Calibration 00:05:40 Transponder in Turkey :53: External Calibration 00:05:40 Transponder in Turkey :15: External Calibration 00:05:40 Transponder in Turkey :34: Gain Compression Monitoring 00:06: :00: External Calibration 00:05:40 Transponder in Turkey Page 20 of 25

21 :18: External Calibration 00:05:40 Transponder in Turkey :58: External Calibration 00:05:40 Transponder in Turkey :19: External Calibration 00:05:40 Transponder in Turkey :17: External Calibration 00:05:40 Transponder in Turkey :58: External Calibration 00:05:40 Transponder in Turkey :56: External Calibration 00:05:40 Transponder in Turkey :18: External Calibration 00:05:40 Transponder in Turkey :57: External Calibration 00:05:40 Transponder in Turkey :15: External Calibration 00:05:40 Transponder in Turkey :36: External Calibration 00:05:40 Transponder in Turkey :54: External Calibration 00:05:40 Transponder in Turkey :34: External Calibration 00:05:40 Transponder in Turkey :16: External Calibration 00:05:40 Transponder in Turkey :14: External Calibration 00:05:40 Transponder in Turkey :55: External Calibration 00:05:40 Transponder in Turkey :35: External Calibration 00:05:40 Transponder in Turkey :53: External Calibration 00:05:40 Transponder in Turkey :14: External Calibration 00:05:40 Transponder in Turkey :32: External Calibration 00:05:40 Transponder in Turkey :53: External Calibration 00:05:40 Transponder in Turkey :11: External Calibration 00:05:40 Transponder in Turkey :33: External Calibration 00:05:40 Transponder in Turkey :31: External Calibration 00:05:40 Transponder in Turkey :12: External Calibration 00:05:40 Transponder in Turkey :21: OFF Mode due to PL-SOL 01 days 15:01: :08: External Calibration 00:05:40 Transponder in Turkey :29: External Calibration 00:05:40 Transponder in Turkey :27: External Calibration 00:05:40 Transponder in Turkey :08: External Calibration 00:05:40 Transponder in Turkey :06: External Calibration 00:05:40 Transponder in Turkey :28: External Calibration 00:05:40 Transponder in Turkey :07: External Calibration 00:05:40 Transponder in Turkey :25: External Calibration 00:05:40 Transponder in Turkey Page 21 of 25

22 :04: External Calibration 00:05:40 Transponder in Turkey :26: External Calibration 00:05:40 Transponder in Turkey :24: External Calibration 00:05:40 Transponder in Turkey :05: External Calibration 00:05:40 Transponder in Turkey :03: External Calibration 00:05:40 Transponder in Turkey :24: External Calibration 00:05:40 Transponder in Turkey :35: Gain Compression Monitoring 00:06: :03: External Calibration 00:05:40 Transponder in Turkey :22: External Calibration 00:05:40 Transponder in Turkey :01: External Calibration 00:05:40 Transponder in Turkey :22: External Calibration 00:05:40 Transponder in Turkey :20: External Calibration 00:05:40 Transponder in Turkey :01: External Calibration 00:05:40 Transponder in Turkey :59: External Calibration 00:05:40 Transponder in Turkey :21: External Calibration 00:05:40 Transponder in Turkey :47: Switch-off for OOP 00 days 20:39: :38: Gain Compression Monitoring 00:06: :15: External Calibration 00:05:40 Transponder in Turkey :16: External Calibration 00:05:40 Transponder in Turkey :14: External Calibration 00:05:40 Transponder in Turkey :14: External Calibration 00:05:40 Transponder in Turkey :10: Gain Compression Monitoring 00:06: :15: External Calibration 00:05:40 Transponder in Turkey :16: External Calibration 00:05:40 Transponder in Turkey :14: External Calibration 00:05:40 Transponder in Turkey :15: External Calibration 00:05:40 Transponder in Turkey :54: Gain Compression Monitoring 00:06: :16: External Calibration 00:05:40 Transponder in Turkey :16: External Calibration 00:05:40 Transponder in Turkey :14: External Calibration 00:05:40 Transponder in Turkey :15: External Calibration 00:05:40 Transponder in Turkey :20: Gain Compression Monitoring 00:06: :16: External Calibration 00:05:40 Transponder in Turkey Page 22 of 25

23 :17: External Calibration 00:05:40 Transponder in Turkey :15: External Calibration 00:05:40 Transponder in Turkey :15: External Calibration 00:05:40 Transponder in Turkey :23: Gain Compression Monitoring 00:06:20 A.2 Manoeuvres Epoch Type Comments :05: :56:41 IP double burn, m/s :48:19 IP single burn, m/s :38:04 IP single burn, m/s :36: :48:40 OOP double burn, m/s, ASCAT instrument off :46: :37:00 IP double burn, m/s :30:02 OOP single burn, m/s, ASCAT instrument off :11: :01:42 IP double burn, m/s Page 23 of 25

24 APPENDIX B LIST OF MISSING PRODUCTS IN DELIVERY A DUE TO L1B PPF ANOMALIES The following products corresponding to the Delivery A period are missing due to L1B PPF anomalies and will be released with Delivery B. START_SENSING_TIME ORBIT_START Month/Year TBW Jan-May Jun Jul Aug Nov Dec Jan Feb Mar Page 24 of 25

25 May Jul Aug Sep Oct 2008 Page 25 of 25