== Nightly Stack Dither ==

The stacked fits images are available from the standard MD datastore, with data_group values of MD04.20100117.ditherA, MD04.20100117.ditherB, MD04.20100116.ditherA, and MD04.20100116.ditherB.

Eight exposures of MD04 in i, from 2010-01-17.  There is a shift of the center between the two dither patterns.  The masked location of a crosstalk artifact is indicated with a red line connecting it to the source star.

||             || Dither A || Dither B ||
||Full Image:  ||[[Image(ditherA.jpg, 400px)]]||[[Image(ditherB.jpg, 400px)]]||
||Zoomed in:   ||[[Image(ditherA_zoom.jpg, 400px)]]||[[Image(ditherB_zoom.jpg, 400px)]]||
||Example Xtalk:||[[Image(ditherA_crosstalk.2.jpg, 400px)]]||[[Image(ditherB_crosstalk.jpg, 400px)]]||

MD04, g band, 2010-01-16.  Dither A is comprised of 4x 240s, and Dither B is 8x 120s.  The masked location of a crosstalk artifact is indicated with a red line connecting it to the source star.  An unmasked crosstalk artifact is also connected with a red line to the source star. It is not clear why this was not masked.  This artifact appears in the B dither, but the masked hole is filled.

||             || Dither A || Dither B ||
||Full Image:  ||[[Image(ditherAg.jpg, 400px)]]||[[Image(ditherBg.jpg, 400px)]]||
||Zoomed in:   ||[[Image(ditherAg_zoom.jpg, 400px)]]||[[Image(ditherBg_zoom.jpg, 400px)]]||
||Example Xtalk:||[[Image(ditherAg_crosstalk.2.jpg, 400px)]]|||[[Image(ditherBg_crosstalk.jpg, 400px)]]|