PDS_VERSION_ID      = PDS3
RECORD_TYPE         = STREAM
SPACECRAFT_NAME     = "MARS GLOBAL SURVEYOR"
TARGET_NAME         = "MARS"
OBJECT              = TEXT
 INTERCHANGE_FORMAT = ASCII
 PUBLICATION_DATE   = 2000-04-01
 NOTE = "errata for MOC SDP volumes"
END_OBJECT          = TEXT
END

MGSC_1064:

Ancillary data for narrow angle image M0803208 were calculated without 
SPICE C-kernel information because C-kernel data were unavailable for 
part of the image; the lack of this data caused erroneous ancillary data 
to be computed.  MGS was assumed to be nadir-pointed for image M0803208.

MGSC_1057 and MGSC_1058:

The MOC narrow angle and wide angle focal plane temperature sensors 
erroneously reported constant values of 268.9 and 243.0, respectively,
for images from M0705439 to M0706057.  The focal plane temperatures 
listed for these images on MGSC_1057 and MGSC_1058 were calculated
from spacecraft engineering temperature data for that time period.  
The majority of these estimates are judged to be correct to +/- 1 
and 2 degrees for the narrow angle and wide angle, respectively; a 
few estimates could be as much as 3 degrees off.

MGSC_1048:

The discontinuity in image numbering from M0403839 to M0449182 and 
likewise from M0449232 to M0403861, is due to the MOC's internal 
sequencing software acquiring images autonomously following an uplink 
command failure.  Such images are assigned an ID larger than 49152 
to distinguish them from explicitly commanded images.

MGSC_0008:

The cumindx.tab entry for image SP243306 on MGSC_0008 is incorrect.  The
parameters in that entry actually correspond to image SP244306; a corrected
version is included on MGSC_0010.

The first cumindx.tab entry for image SP245503 on MGSC_0008 is incorrect.
The parameters in that entry actually correspond to image SP244503; a 
corrected version is included on MGSC_0010.


General:

As a point of clarification, if an image is to be flipped left-right
because its USAGE_NOTE has a value of 'F', it may still have to be
rotated into a north-up orientation as indicated by the NORTH_AZIMUTH
parameter.  That is, a roughly north-up orientation may still require
a rotation of 180 degrees after flipping.


The MOC team has identified that the data for the following images
were of better quality in the realtime operations data retrievals
than were recorded on the Level 0 Science and Engineering CD-ROMs:
        FHA00908.IMQ
        M0000134.IMQ
        M0000165.IMQ
        M0000503.IMQ
        M0000817.IMQ
        M0001369.IMQ
        M0001612.IMQ
        M0001691.IMQ
        M0001715.IMQ
        M0001737.IMQ
        M0001864.IMQ
        M0002049.IMQ
        M0002357.IMQ
        M0002488.IMQ
        M0002489.IMQ
        M0002492.IMQ
        M0101866.IMQ
        M0103043.IMQ
        M0202137.IMQ
        M0303659.IMQ
        M0304020.IMQ
        M0304184.IMQ
        M0304618.IMQ
        M0304622.IMQ
        M0305849.IMQ
        M0306075.IMQ
        M0400281.IMQ
        M0400824.IMQ
        M0400958.IMQ
        M0401313.IMQ
        M0401975.IMQ
        M0402242.IMQ
        M0402807.IMQ
        M0700819.IMQ
        M0701411.IMQ
        M0706090.IMQ
        M0803444.IMQ
        M0803981.IMQ
        M0804078.IMQ
        M0804192.IMQ
        M0804223.IMQ
        M0804319.IMQ
        M0804387.IMQ
        M0804452.IMQ
        M0805126.IMQ
        M0805127.IMQ
        M0805128.IMQ
        M0805129.IMQ
        M0805350.IMQ
        M0806411.IMQ
        M0806516.IMQ
        M0808073.IMQ
        M0901048.IMQ
        M0901534.IMQ
        M0901650.IMQ
        M0902716.IMQ
        M0902971.IMQ
        M0903556.IMQ
        M0904231.IMQ
        M0904975.IMQ
        M0905715.IMQ
        M1000237.IMQ
        M1000405.IMQ
        M1000849.IMQ
        M1001377.IMQ
        M1001710.IMQ
        M1002289.IMQ
        M1002309.IMQ
        M1002317.IMQ
        M1002830.IMQ
        M1003164.IMQ
        M1003482.IMQ
        M1003592.IMQ
        M1100144.IMQ
        M1100147.IMQ
        M1101325.IMQ
        M1101961.IMQ
        M1102275.IMQ
        M1102360.IMQ
        M1104298.IMQ
        M1104327.IMQ
        M1200090.IMQ
        M1201787.IMQ
        M1202303.IMQ
        M1202329.IMQ
        M1202618.IMQ
        M1202696.IMQ

The MOC team has identified that the data for the following images
were retrieved from the JPL server during real time operations,
but were not included in the Level 0 Science and Engineering CD-ROMs
and are no longer retrievable at JPL.  These images have been 
included in the archive:
        M0000784.IMQ 
        M0000785.IMQ 
        M0000786.IMQ 
        M0000787.IMQ 
        M0000788.IMQ 
        M0000789.IMQ 
        M0000790.IMQ 
        M0002355.IMQ 
        M0002356.IMQ 
        M0002360.IMQ 
        M0002361.IMQ 
        M0002362.IMQ 
        M0002363.IMQ 
        M0002364.IMQ 
        M0002365.IMQ 
        M0002366.IMQ 
        M0002367.IMQ 
        M0002368.IMQ 
        M0002369.IMQ 
        M0002370.IMQ 
        M0002371.IMQ 
        M0002372.IMQ 
        M0002373.IMQ 
        M0002374.IMQ 
        M0002375.IMQ 
        M0002376.IMQ 
        M0002377.IMQ 
        M0002378.IMQ 
        M0002379.IMQ 
        M0002380.IMQ 
        M0002381.IMQ 
        M0002382.IMQ 
        M0002383.IMQ 
        M0002384.IMQ 
        M0002385.IMQ 
        M0002386.IMQ 
        M0002387.IMQ 
        M0002388.IMQ 
        M0002389.IMQ 
        M0002398.IMQ 
        M0002399.IMQ 
        M0002404.IMQ 
        M0002405.IMQ 
        M0002412.IMQ 
        M0002413.IMQ 
        M0002420.IMQ 
        M0002421.IMQ 
        M0002422.IMQ 
        M0002423.IMQ 
        M0002424.IMQ 
        M0002425.IMQ 
        M0002426.IMQ
        M0002427.IMQ
        M0002428.IMQ 
        M0002429.IMQ 
        M0002430.IMQ 
        M0002431.IMQ 
        M0002432.IMQ 
        M0002433.IMQ 
        M0002434.IMQ 
        M0002435.IMQ 
        M0002436.IMQ 
        M0002437.IMQ 
        M0002438.IMQ 
        M0002439.IMQ 
        M0002440.IMQ 
        M0002441.IMQ 
        M0002442.IMQ 
        M0002443.IMQ 
        M0002444.IMQ 
        M0002445.IMQ 
        M0002446.IMQ 
        M0002447.IMQ 
        M0002456.IMQ 
        M0002457.IMQ 
        M0002466.IMQ 
        M0002467.IMQ 
        M0002472.IMQ 
        M0002473.IMQ 
        M0002480.IMQ 
        M0002481.IMQ 
        M0002482.IMQ 
        M0002483.IMQ 
        M0002484.IMQ 
        M0002485.IMQ 
        M0002486.IMQ 
        M0002487.IMQ 
        M0002490.IMQ 
        M0002491.IMQ 
        M0803941.IMQ
        M1000328.IMQ
        M1000329.IMQ
        M1000336.IMQ
        M1000337.IMQ
        M1000340.IMQ
        M1000347.IMQ
        M1000348.IMQ

The following image ids were used for Mars Relay (MR) data
collections, for either HKTM or actual science data collection
attempts for the Mars Polar Lander (MPL) and the two Deep
Space 2 (DS2) probes during the Mars Surveyor '98 (MS98)
mission.  The MOC was used as a data relay source only and
the MR data are therefore not archived with the MOC data on
this volume, but rather will be published as seperate data set.
        M0302732
        M0302743
        M0302744
        M0302753
        M0302754
        M0901080
        M0906605
        M1000001
        M1000153
        M1000303
        M1000424
        M1000425
        M1000426
        M1000427
        M1000432
        M1000437
        M1000450
        M1000453
        M1000460
        M1000463
        M1000468
        M1000477
        M1000496
        M1000524
        M1000537
        M1000542
        M1000547
        M1000554
        M1000557
        M1000560
        M1000569
        M1000580
        M1000606
        M1000624
        M1000646
        M1000666
        M1000671
        M1000676
        M1000681
        M1000684
        M1000700
        M1000722
        M1000736
        M1000737
        M1000742
        M1000745
        M1000754
        M1000763
        M1000774
        M1000779
        M1000802
        M1000859
        M1000903
        M1000915
        M1001029
        M1002023
        M1002105
        M1002219
        M1002243
        M1002334
        M1002487
        M1002614
        M1002673
        M1002778
        M1002882
        M1002975
        M1003107
        M1003252
        M1003498
        M1003506
        M1003597
        M1100040
        M1100155
        M1100317
        M1100459
        M1100614
        M1100804
        M1101058
        M1101144
        M1101152
        M1101335
        M1101429
        M1101560
        M1101609
        M1101622
        M1101786
        M1101825
        M1102019
        M1102100
        M1102266
        M1102450
        M1102453
        M1102568
        M1102698
        M1102787
        M1102940
        M1103601
        M1103788
        M1103911
        M1104011
        M1104236
        M1104322
        M1200069
        M1200134
        M1200256
        M1200364
        M1200512
        M1200660
        M1200761
        M1200870
        M1200929
        M1201023
        M1201107
        M1201217
        M1201350
        M1201447
        M1201549
        M1201618
        M1201723
        M1201864
        M1201906
        M1202004
        M1202160
        M1202245
        M1202334
        M1202393
        M1202530
        M1202549
        M1202654
        M1202765
        M1202865
        M1300055
        M1300111
        M1300172
        M1300266
        M1300355
        M1300403
        M1300426

The PC version of the readmoc software does not work on some images.
We are planning to fix this as soon as possible, and the update will
be available on the website specified in readmoc.txt.  If the user
has access to SunOS/Solaris, it is recommended that readmoc be run
on that platform in the meantime, as the sunos readmoc version does
not appear to exhibit this problem.

Regarding numbering of planning periods (see aareadme.txt):
Starting on 01 September 1999, the planning periods were defined to
start on the first of each month (specifically at the first descending
equator crossing occuring after 0 GMT on the first of each month).
Simultaneously, the numbering scheme was synchronized such that 
September 1999, the seventh month of MGS Mapping, was named M07.
Subsequent months are named M08, M09, etc.
Therefore, the denominations of M05 and M06 were not used.

The MGS/MOC team has made every effort to comply with PDS standards
known to us at the time the volume was generated, but for some parts 
of the MOC volume as presented here either no standard was available 
or ambiguities existed.  Producers of future PDS volumes should consult
the latest available PDS Standard for generation of their own volumes.
In particular, at the time of the creation of the MOC products, PDS
standards for labeling software packages had not been defined, so
the software directory tree contains no labeling information.