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Eric E Palmer edited this page Oct 23, 2026 · 1 revision

Test 11: ReferencePeaks

Take PIT020 as the only maplet in MAPLIST.TXT. Generate 5cm images of the topography (which is based at TAG Site 1). Then we build a MAPLET, saving the MAPLETs flatMapVect at several states.

Simple Variations

Groups of images - (adjusted for 5cm)

  • Test11A - Detailed Survey. Eric (Has 11 images, very low in sample space)
  • Test11B - Min Orbit B (by hand, calculate the minimum requirement)
  • Test11C - Average Orbit B (use a random Orbit B solution with 3 unique observation/illumination conditions)
  • Test11D - Best Orbit B (as we did before)
  • Test11E - Optimum Collection (as we did before) | Name | Sun Az | Sun Zenith | S/C Az | S/C Zenith | | --- | --- | --- | --- | --- | | Optimum Collection1 | 0, 90, 180, 270 | 45 | every 20 | 45 | | Optimum Collection2 | 135 | 30 | every 20 | 45 |
  • Test11U - Criss Cross (combine both of these sets) | Name | Sun | S/C Az | S/C Zenith | | --- | --- | --- | --- | | Criss Cross 1 | 80, 60, 40, 20, 0, -20, -40, -60, -80 | 45 | 45 | | Criss Cross 2 | 45 | 0, 180 | 80, 60, 40, 20, 0 |

Variations

Spacecraft Azimuth Variations

Name Sun S/C Az S/C Zenith Who RMS w/trans
Over11F Test11F 45, 0, -45 every 20 45 Diane Test11F=0.77cm
Test11G 45, 0, -45 every 30 45 Diane 0.83cm
Test11H 45, 0, -45 every 45 45 Tanner
newover11IJRWnewTest11I Test11I 45, 0, -45 every 60 45 Kris 1.21cm
over11J newTest11J Test11J 45, 0, -45 every 90 45 John 2.52cm

Sun Variations

Name Sun S/C Az S/C Zenith Who RMS w/trans
over11K Test11K 30 every 45 45 Diane 3.61cm
Test11L 30 -30 every 45 45 Tanner
Test11M -45, -45 every 45 45 Kris
over11N Test11N 30, 0, -30 every 45 45 John
Test11P 45, 30, 0, -30, -45 every 45 45 Diane 0.71cm
Test11Q 60, 45, 30, 0, -30, -45, -60 every 45 45 Tanner
Test11R 60, 30, -30, -60 every 45 45 Kris (eep 0.62cm)

Spacecraft Zenith Variations

Comparison

Name Sun S/C Az S/C Zenith Who RMS w/trans
Over11S Test11S 45, 0, -45 every 45 0, 30, 60 John
Over11T Test11T 45, 0, -45 every 45 0, 20, 40, 60, 80 Tanner
Over11U Test11U 45, 0, -45 every 45 0, 14, 30, 45, 60, 75 Diane 1.02cm

Hill Data

I have created the following hills for testing

  • PIT007 - 7 deg tilt
  • PIT014 - 14 deg tilt
  • PIT020 - 20 deg tilt <-- Let's use this one
  • PIT030 - 30 deg tilt
  • PIT045 - 45 deg tilt
  • PIT060 - 60 deg tilt

Truth Maplets

  • -8.027 262.768
  • T11TRU.MAP - already built. It has the truth heights loaded from PIT020.
  • T11TRU.TXT -- Text file of the maplet. Use for plotting transits
  • t11-truth.obj -- OBJ file for testing using CompareOBJ

Testing Maplets

  • -8.027 262.768
  • Build a model MAPLET using TAG Site 1 center position (5cm resolution and Q=49). Do not load a base map for topography
  • Create MOD20#, which # is the test number (letter)
  • Align the images with the key location at 50/50.
  • Build template with 100
  • (Skip until close to perfect) -- Do an auto align
  • Build height using the iteration template
  • Do flatMapVec and rename it to mod-20#-1
  • Do compMapVec between MOD20# and T11TRU
  • Repeat as necessary

Iteration Template

0
0
44
2
8                fill no data with shape slope
7
.01
6
y
y
1                condition with overlapping maps
2                condition with existing topo
.01
6
y
y
0                begin integration
.025
100
0
v
1
u
1
o                overlaps
RECENT
n
1
i
r
n
n

Useful copy/paste stuff

echo CENTER | /usr/local/localBin/flatMapVec 
 /usr/local/localBin/compMapVec MAPFILES/CENTER MAPFILES/T11TRU.MAP
~/eval/bin/Maplet2FITS MAPFILES/CENTER fit
 ~/eval/bin/FITS2OBJ --local fit center.obj
 ~/eval/bin/CompareOBJ    --compute-optimal-translation-and-rotation   center.obj newtru.obj 
convert  LMRK_DISPLAY1.pgm display.jpg
mkdir step02
cp CENTER.TXT MAPFILES/CENTER.MAP step02

gnuplot
set term x11
set style data lines
plot 'NEW020.TXT' u 0:50 lw 3 lc 0, 'CENTER.TXT' u 0:50 
set output 'out.png' 
set term png
replot
unset output
set term x11
exit

mv out.png mod20f.obj MOD20F.TXT comp.txt display.jpg step2

Save States

The goal is to see the evolution of the model over time. You can stop iterations once the peak and base are stable. The most likely tool to evaluate if the model has reached it best fit will be transit.

Save the flatMapVect statistics at the following number of iterations

  • 1st
  • 2nd
  • 3rd
  • 5th
  • 10th
  • 15th
  • 20th
  • 50th (if needed)
  • 100th (if needed)
  • 200th (if needed)

Examples

Example of a 14 degree peak, measured at difference locations

Example of a 20 degree peak, measured over time

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