PDS_VERSION_ID        = PDS3

RECORD_TYPE           = STREAM

DATA_SET_ID           = "MEX-E/M-SPICE-6-V2.0"
                                                                              
PRODUCT_ID            = "ERRATA"
PRODUCT_CREATION_TIME = 2021-06-01
                                                                              
OBJECT                = TEXT
  INTERCHANGE_FORMAT  = ASCII
  PUBLICATION_DATE    = 2026-05-22
  NOTE                = "Mars Express SPICE Data Set ERRATA."
END_OBJECT            = TEXT
END                                                                           
                                                                              
                                                                              
This is a list of known errors within this data set.
                                                                              
1.  All labels for binary kernels (SPK, CK, binary PCK) miss
    the FILE_RECORDS keyword which is required if RECORD_TYPE
    is set to FIXED_LENGTH.
                                                                              
2.  The NAIF_INSTRUMENT_ID has been set to "N/A" for all the
    labels in this data set, except for Instrument Kernels
    (IK) and C Kernels (CK).
                                                                              
3.  For all SPICE kernels that don't contain information specific to a
    mission target (e.g. LSKs, CKs, etc) the TARGET_NAME keyword has been
    set to "N/A".
                                                                              
4.  Note that all the labels for the kernels in this data set have
    SPACECRAFT_CLOCK_START_COUNT and SPACECRAFT_CLOCK_STOP_COUNT set
    to N/A. The authors of the data set think that it is not appropriate
    to put a clock count value for a product that was generated on
    ground.

5.  In SOFT.CAT SOFTWARE_ID is set to "SPICE TOOLKIT", which is not a
    permissible value according to the PDS3 dictionary.

6.  In the comment area of DEIMOS_K005_THO_V01.BDS, PHOBOS_K275_DLR_V02.BDS
    and PHOBOS_M003_GAS_V01.BDS the frames kernel from ExoMars2016
    em16_dsk_surfaces_v01.tf is said to be required to use the DSKs
    instead of MEX_DSK_SURFACES_V02.TF. This is to have the same DSK
    files for both Mars Express and ExoMars2016 Data Sets.

7.  In the comment area of EARTHSTNS_RU_20210702.BSP and descriptions within
    EARTHSTNS_RU_20210702.TF the data from ExoMars2016 Navigation ICD
    is said to be used for defining the ground stations. This is to have
    the same FK and SPK files for both Mars Express and ExoMars2016 Data Sets.

8.  C-Matrix Kernels generated from Housekeeping Telemetry contain several
    gaps for different known reasons. Some of the gaps might be restored in
    future versions of the data set. Note that for S/C attitude those gaps
    are covered by predicted CK files. It is worth mentioning the gap from
    2018-APR-16 17:23:03.211 to 2018-APR-17 00:00:08.366 caused by the S/C
    safe mode after the AOCS sub-system update to accommodate the
    Gyroless-Mode to allow gyro less attitude determination for S/C
    operations.

9.  Note that some labels for the type 19 SPK kernels in this data set
    have an incorrect reference to the original file they were generated
    from in the label DESCRIPTION field. These references should follow
    the file name convention: ORMM_FDRMCS_DA_YYMMDD000000_vvvvv.MEX
    where YYMMDD and vvvvv are the coverage start year, month, and day, and
    file version number. The incorrect reference replaces all MM and M
    with the coverage start month.

10. Note that the shape model implemented in the Deimos DSK
    DEIMOS_K005_THO_V01.BDS had an incorrect rotation which has been corrected
    in version V02.

11. Note that the versions V09 to V15 of the metakernel files stored in 
    EXTRAS/MK contain references to multiple versions of the 
    ORMM_T19_YYMMDD000000_vvvvv.BSP with the same time coverage.
    (e.g. '$KERNELS/SPK/ORMM_T19_230801000000_01825.BSP' and 
    '$KERNELS/SPK/ORMM_T19_230801000000_01827.BSP'). Note that the precedence 
    rules in the SPICE loading of metakernels ensures the latest version
    priority. 

12. Note that the instrument kernel MEX_MARSIS_V02.TI stored in DATA/IK
    contains spurious trailing single quotes. This is s a violation of the text
    kernel format and future versions of SPICE Toolkit might not be able to
    load it. It has been corrected in version V03.

