This dataset includes MIDAS data from the COMET ESCORT phase 3.The current release is based on the results of the Comet ScienceReviews held in Feb 2016, Oct 2017 and Oct 2018 and contains theupdates defined in the MIDAS Enhanced Archive Data Delivery contract.Updates from V1.0-----------------Version 2.0 includes several updates made in response to the CometScience Reviews held in February 2016 and October 2017. Updates havebeen made to- Documentation: MID_EAICD.ASC|PDF, MID_COOR.ASC|PDF (/DOCUMENT)- Data browser : Updated ReadPDS library to V4.9 (/DOCUMENT/CODE)- Label files : Added X/Y scaling factor for images (/DATA/IMG/*.LBL)- Data files : Enhanced history files (/DATA/CAH*.TAB|TGH*.TAB)- Catalog files: Updated to latest versions (/DOCUMENT/CATALOG)- This file: : Improved image list facilitates data file referencingUpdates from V2.0-----------------Version 3.0 implements the dataset improvements agreed in the MIDASEnhanced Archive Data Delivery Contract work packages 101, 102 and302:- General : Updated contact names and addresses (VOLDESC.CAT) Updated dataset content description (AAREADME.TXT)- Documentation: Updated DOCINFO.TXT, MID_EAICD.ASC|PDF (/DOCUMENT) Added image scan table MID_IMG_CATALOG.TAB|LBL Added tip mapping table MID_TIP_CATALOG.TAB|LBL Added enhanced calibration report MID_CALIBRATION.PDF Added reconstructed images report MID_REC_IMAGES.PDF Added tip image catalogue MID_TIP_IMAGES.PDF Added MIDAS analysts notebook MID_ANALYSTS_NBOOK.PDF Added MIDAS science user guide MID_SCI_USER_GUIDE.PDF- Data files : Recalibrated images in X/Y/Z based on the evaluation of the results from the calibration target scans Complemented dataset with reconstructed images Added particle mask image files (DATA/IMG/*_MK.IMG) Added document links to detached label files Added browse images for PSA (/BROWSE/PRV_*_ZS.JPG) Fixed HORIZONTAL/VERTICAL_PIXEL_SCALE calculation Fixed xlength/ylength calculation in image files Fixed number of columns in ROI and SPA data products- Catalog files: Updated to latest versions (/DOCUMENT/CATALOG)- This file : Marked reconstructed and mask images in image listThe following images can be found in the dataset (for a given image,the name of the respective label file is composed of the file pathassociated with the preceding medium term planning period MTPxxx andthe image identifier listed in the second column):----------------------------------------------------------------------Scenario  DAQ (YYDDDhhmm) Target Tip ImgSize StepSize D MM (D : main scan direction, MM : measurement mode)----------------------------------------------------------------------MTP018 /DATA/IMG/IMG_1518123_1521000__ZS.LBL----------------------------------------------------------------------STP063 001 151830229-151830946 4 CAL 14 256x256 4x 4 Y DYN 004 151832122-151841817 22 DAQ 14 224x224 94x 257 Y DYN 008 151850823-151860859 22 DAQ 14 256x256 82x 225 Y DYN 012 151861722-151871756 22 DAQ 14 256x256 82x 225 Y DYNSTP064 (M)016 151891126-151901203 15 DAQ 9 256x256 82x 82 X DYNSTP065 019 151960630-151961023 11 DAQ 5 256x256 8x 8 X DYN 022 151961640-151971713 22 DAQ 14 256x256 82x 225 Y DYN 026 151980017-151980045 12 DAQ 14 64x 64 328x 328 X DYN 029 151980152-151980227 12 DAQ 14 64x 64 328x 328 X DYN 032 151980336-151980424 12 DAQ 14 64x 64 328x 328 X DYN 035 151980534-151980628 12 DAQ 14 64x 64 328x 328 X DYN 038 151980739-151980832 12 DAQ 14 64x 64 328x 328 X DYN 041 151981102-151981403 11 DAQ 10 64x 64 328x 900 Y DYN 044 151990826-152000851 22 DAQ 14 256x256 82x 225 Y DYN 048 152001755-152010148 13 DAQ 10 64x 64 328x 328 X DYN 052 152010536-152011329 13 DAQ 10 64x 64 328x 328 X DYN 056 152011717-152020109 13 DAQ 10 64x 64 328x 328 X DYN 060 152020458-152021251 13 DAQ 10 64x 64 328x 328 X DYN 064 152021610-152022207 11 DAQ 10 64x 64 328x 900 Y DYNSTP066 067 152031909-152041218 13 DAQ 14 288x288 22x 22 X DYN 070 152041404-152041844 3 CAL 15 256x256 4x 11 Y DYN 073 152042019-152050102 3 CAL 16 256x256 4x 11 Y DYN 076 152050234-152050720 3 CAL 12 256x256 4x 11 Y DYN 079 152051028-152051909 14 DAQ 10 64x 64 328x 328 X DYN 082 152060819-152070353 23 DAQ 10 224x224 94x 257 Y DYN 085 152071054-152080632 23 DAQ 10 224x224 94x 257 Y DYN 088 152081336-152091317 22 DAQ 10 224x224 94x 257 Y DYN----------------------------------------------------------------------MTP019 /DATA/IMG/IMG_1520923_1523800__ZS.LBL----------------------------------------------------------------------STP067 001 152101846-152111147 6 DAQ 9 256x256 82x 225 Y DYN 004 152111948-152112116 12 DAQ 14 32x 32 328x 328 X DYN 007 152112202-152112329 12 DAQ 14 32x 32 328x 328 X DYN 010 152120015-152120141 12 DAQ 14 32x 32 328x 328 X DYN 013 152120228-152120354 12 DAQ 14 32x 32 328x 328 X DYN 016 152120603-152121019 4 CAL 8 256x256 4x 4 X CON 019 152121649-152122228 11 DAQ 10 64x 64 328x 900 Y DYN (M)022 152131132-152131639 11 DAQ 10 64x 64 328x 900 Y DYN 025 152132035-152140149 11 DAQ 10 64x 64 328x 900 Y DYN 028 152140748-152150051 6 DAQ 9 256x256 82x 225 Y DYN 031 152150734-152160053 6 DAQ 9 256x256 82x 225 Y DYN 034 152160654-152161730 22 DAQ 14 256x256 41x 112 Y DYNSTP068 038 152170716-152172017 22 DAQ 14 512x512 5x 14 Y DYN 040 152172236-152181015 22 DAQ 14 512x512 5x 14 Y DYN 042 152181400-152190138 22 DAQ 14 512x512 5x 14 Y DYN 044 152190522-152191655 22 DAQ 14 512x512 5x 14 Y DYN 046 152200737-152201857 22 DAQ 14 256x256 41x 112 Y DYN 050 152202310-152211034 22 DAQ 14 256x256 41x 112 Y DYN----------------------------------------------------------------------MTP020 /DATA/IMG/IMG_1523723_1526600__ZS.LBL----------------------------------------------------------------------STP072 001 152450718-152452032 23 DAQ 14 512x512 5x 14 Y DYN 003 152452239-152461047 23 DAQ 14 512x512 5x 14 Y DYN 005 152461403-152470229 23 DAQ 14 512x512 5x 14 Y DYN 007 152470526-152471737 23 DAQ 14 512x512 5x 14 Y DYN 009 152480745-152482132 3 CAL 10 256x256 41x 112 Y DYN 013 152482314-152491131 3 CAL 10 256x256 41x 112 Y DYN----------------------------------------------------------------------MTP021 /DATA/IMG/IMG_1526523_1529400__ZS.LBL----------------------------------------------------------------------STP075 001 152660849-152661613 22 DAQ 14 64x 64 328x 900 Y DYN 005 152662024-152670407 22 DAQ 14 64x 64 328x 900 Y DYN 009 152670757-152671540 22 DAQ 14 64x 64 328x 900 Y DYN 013 152671930-152680313 23 DAQ 14 64x 64 328x 900 Y DYN 017 152680533-152681446 7 DAQ 8 288x288 7x 20 Y CON 019 152690727-152691613 7 DAQ 8 224x224 18x 48 Y CON 021 152691741-152700223 7 DAQ 8 224x224 18x 48 Y CON 023 152700355-152701241 7 DAQ 8 224x224 18x 48 Y CON 025 152701409-152702257 7 DAQ 8 224x224 18x 48 Y CONSTP076 027 152760735-152760927 7 DAQ 8 224x224 18x 48 Y CON 031 152770156-152771555 7 DAQ 8 224x224 18x 48 Y CON 035 152772018-152780055 7 DAQ 8 224x224 18x 48 Y CON 039 152781441-152782142 7 DAQ 8 224x224 18x 48 Y CON 043 152790932-152792120 7 DAQ 8 288x288 7x 20 Y CONSTP077 047 152800824-152810514 22 DAQ 14 224x224 94x 257 Y DYN 051 152811250-152820939 22 DAQ 14 224x224 94x 257 Y DYN 055 152830823-152840515 22 DAQ 14 224x224 94x 257 Y DYN 059 152841317-152842106 22 DAQ 14 64x 64 328x 900 Y DYN 063 152850058-152850849 22 DAQ 14 64x 64 328x 900 Y DYN 067 152851211-152860858 23 DAQ 14 224x224 94x 257 Y DYN 071 152861633-152862222 23 DAQ 14 64x 64 328x 900 Y DYNSTP078 (M)075 152870808-152880258 11 DAQ 10 256x256 51x 141 Y DYN 078 152881004-152890309 11 DAQ 10 192x288 73x 200 Y DYN----------------------------------------------------------------------(R) denotes that the image has been reconstructed from line scans(M) indicates that the image has an associated particle mask file----------------------------------------------------------------------

Confidence Level Overview : All telemetry data frames produced by MIDAS contained checksums that were validated upon ground receipt. During the processing of the data in preparation for delivery with this volume, the structure of the telemetry data packets was verified. This verification included detection of both the DDS header and the length of each packet, which ensured that all packets were complete and not damaged. The validity of the data has been approved by the MIDAS Science Lead and Science team members by review of the included images and evaluation of the associated housekeeping information.