. Click on still to start movie.
Last updated: Feb 5, 1999
Y Offset of Eros from nominal position, center of frame DOY 354 (postscript). Click here for a gif version of the same plot.
X Offset from average Eros Position of 244, 107 (postscript) If you haven't set up your browser to read postscript files download this file by clicking your right mouse button, then select the "Save Link as...." option. Or click here for a gif version of the same plot.
Y Offset from average Eros Position of 244, 107 (postscript). Click here for a gif version of the same plot.
The positions plotted in the two above plots were simply derived from finding the maximum pixel value in a 25x25 box centered on 244 107, so the offsets you see are a function of both reflections from topographic facets changing during rotation and pointing uncertainty. I also did a coregistration of frame to frame and got offsets that way (whole asteroid). However, the answer is not much different and it seems of no value to plot those values up unless somebody requests such.
Y Offset of Eros from nominal position, center of frame (postscript). Click here for a gif version of the same plot.
Animation (animated Gif) below shows the 780 frames centered on Eros and cropped relative to the average Eros position of 244, 107 (the little plus mark shows the actual center of the image where it is suppose to lie in a perfect world ( a shift of 25 x and 15 y).
. Click on still to start movie.
Another animation made as an image of the day from the same data (click on still to start movie - Time is UT).
or the same movie, but at a slower pace.
Y Offset of Eros from nominal position, center of frame DOY 013 (postscript). Click here for a gif version of the same plot.
Y Offset of Eros from nominal position, center of frame DOY 018 (postscript). I need some verification of what the nominal position is for this set. Click here for a gif version of the same plot.
Y Offset of Eros from nominal position, center of frame DOY 022 (postscript). Click here for a gif version of the same plot. Note the improved pointing as a result of the trajectory update sent to NEAR last Friday.
Stat summary of position information shown in above plot (n=780).
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Avg and Std of x and y: -0.469231 1.32628 0.00256410 0.736010
Min Max X and Min Max Y: -4.00000 2.00000 -2.00000 2.00000
Animation from DOY 022 Movie 3 sequence (click on still to start movie - Time is UT).
or you can look at this little movie summary, a frame from every 30 degrees of rotation (click on icon)
NEAR MSI acquired a 6x7 mosaic of the region of space around Eros to search for moonlets. The mosaic was completed successfully. Additionally these data give insight to the scattered light problem. The mosaic was actually acquired 4 times, once in autoexposure mode, and 3 times at 999 msecs (max exposure possible) to bring out faint objects. The mosaic depicted here (below) was made from the 3rd set of 999 msec frames, the two middle frames which contain Eros were omitted because they are way overexposed (intentionally).
Below is a version of the mosaic combining frames from Exposure sets 1 and 4. Eros appears near the middle (from set 1) and the star field (from set 4) has had scattered light removed by thresholding and manual editing. The star identifications were provided by Peter Tamblyn (thanks!).
A light curve sequence of images every 30 degrees of rotation (click on icon)
