OBSERVATION KEY --------------- This file is an overview of files available in the eros/descript/ subdirectory. In this subdirectory you will find a set of .txt files and a set of .xls files that are stripped and sorted versions of the major Eros spreadsheets. These will be useful for people who want quick access to specific types of orbital data. First, a mission overview: QUICK LIST OF OCMS doy orbit radii orbit period #orbits orbit name Sub-Solar inclin. (days) Lat OIM 045 321 x 366 35 21.8 .5 Post-Orbit Insertion B +58 OCM-1 055 365 x 204 34 16.5 .5 Post-Orbit Insertion B +53 OCM-2 063 206 x 203 37 10.1 2.7 200 km North +49 OCM-3 093 209 x 100 55 6.7 1.5 200 x 100 Transition +35 OCM-4 102 101 x 99 59 3.5 3.2 100km North +31 OCM-5 113 101 x 50 64 2.2 4.5 100 x 50 Transition +27 OCM-6 121 52 x 49 90 1.2 55.2 50km A +24 OCM-7 189 51 x 35 90 1 6.6 50 x 35km Transition -2 OCM-8 196 35 x 39 90 0.8 13.7 35 km A -5 OCM-9 206 36 x 56 90 1.1 6.7 35 x 50km Transition -9 OCM-10 213 52 x 49 90 1.2 6.7 50km B -12 OCM-11 221 52 x 50 -75 1.2 14.1 50km B (continued) -14 OCM-12 239 49 x 102 -67 2.3 4.4 50 x 100km Transition -20 OCM-13 249 100 x 103 -65 3.5 10.9 100km South -24 OCM-14 287 98 x 50 -50 2.2 3.5 100 x 50km Transition -39 OCM-15 294 52 x 50 -47 1.2 3.2 50km C -41 OCM-16 299 51 x 19 -47 0.7 1 Low Alt Flyover I -43 OCM-17 300 64 x 203 -35 5.4 1.4 Transition to 200km -44 OCM-18 308 196 x 194 -33 9.4 3.5 200km South -47 OCM-19 342 193 x 34 -1 4.2 1.5 200 x 35km Transition -61 OCM-20 348 38 x 34 -1 0.8 55.9 35km B -64 OCM-21 024 35 x 22 -1 0.6 6.1 Low Altitude Flyover IIa -83 OCM-22 028 37 x 19 -1 0.6 1.3 Low Altitude Flyover IIb -84 OCM-23 028 36 x 35 -1 0.8 6 35 km C -84 OCM-24 033 36 x 36 -1 0.8 5.5 35km, tweak for landing -86 OCM-25 037 36 x 36 -1 0.8 5.4 35km, tweak for landing -87 EMM-1 043 down to 6 -1to36 0.8-0.3 7.8 Descent -84 Eros Orbital Mission Overview Notes: 1) minus sign (-) in inclination means retrograde, + sign is prograde; means inclination of orbit relative to equatorial plane of Eros. Indicates range of sub-s/c views possible in this orbit. If inclination is 35, the sub-s/c latitude will vary between +35 and - 35 in this orbit. 2) minus sign (-) in solar lat means southern hemisphere, + sign means northern hemisphere; indicates solar illumination on Eros. The spreadsheets on the front page contain a great deal of useful information. However, they are quite large. I have sorted them for certain observation types and created subset spreadsheets, one for each observation type. I have also created a companion txt file for each subset excel file. One thing, these sorted files DO NOT contain the links to gif files. It's easiest to just proceed to the subdirectory for the sequence week during which the observation was acquired to access the gif files directly. Or you can go to the 7 major spreadsheets to access the .gifs from the links in the Predict column. --- The following files are located in this directory, /eros/descript to help you find what you need in the Eros data set: .xls files - spreadsheets containing all of single types of observations .txt files - most are linked from the Detailed Description column in the major 7 Eros spreadsheets; these describe the various sub-types within these observation types, and contain a reduced ascii version of the spreadsheet observation list. Some of these are NOT linked from spreadsheet: global.txt, ridenlr.txt, xreqs.txt. Miscellaneous: lightcurves.xls and .txt canopuscals.xls and .txt rastertests.txt only mirrorgeom.txt only mirrorplane.txt only satsearches.txt only misc_cals.xls only Monochrome: approachmovies.xls and .txt (these include some color) global.xls and .txt globalmovies.xls and .txt (these include some color) featuretracks.xls and .txt flyover.xls and .txt lonscans.xls and .txt lowrobitopnavs.xls ---> the high orbit opnavs are listed in global.xls opnav.txt ---> contains description for high and low orbit opnavs) xreqs.xls and .txt lowalt_1.xls and .txt lowalt_2.xls and .txt Color: color200.xls and .txt color100.xls and .txt color50km.xls and .txt color35km.xls and .txt colorflyovers.xls only A few things about these observation type spreadsheets. 1) Range to center of Eros given in left column. This is just meant to be a general reference to the orbital altitude for the observation. Predict range to surface is given in the imagelists. 2) Sub-solar latitude indicates what illumination exists on the asteroid, NOT the view to Eros. 3) Sub-spacecraft latitude is listed in some of the .txt files and indicates the VIEW to Eros, not the illumination. 4) Descriptions are a little better in the stripped spreadsheets as compared to the major spreadsheets on the front page. Tbd to make them consistent. 5) I forgot to leave in the reference to sequencing week in each stripped spreadsheet. It's easy to figure it out with the following list. Guide to the sequence weeks in for Eros prime mission: ----------------------------------------------------- Approach: 00010 00017 00024 00031 00033 00035 00038 PostOrbitInsertion: 00045 00052 00059 200km North: 00066 00073 00077 00080 00087 200x100 North: 00087 00094 00101 100km North 00101 00108 00115 50km A: 00115 00122 00129 00136 00143 00150 00157 00164 00171 00178 00185 35km A: 00185 00192 00201 00205 00212 50km B: 00212 00220 00227 00234 50x100 00241 00248 100km South: 00248 00255 00262 00269 00276 00283 100x50 00283 00290 50km C 00290 00297 Lowalt1 00297 00304 200km south 00304 00311 00318 00325 00332 00339 200x35 00339 00346 37x34 00346 00353 00360 01001 01008 01015 Low Alt 2 01022 36x36 01030 01036 Landing 01043