Astronomy and Coffee

Lots of small problems!

So! Yesterday and today! :-)

Yesterday two doctor appointments for the exams on Matheus health one in the morning (whole morning btw) and one in the evening.

In the mean while trying to make a FORS2 image, suitable for FIMS but with image quality. Took a while and a dirty trick, but it has worked. A very bureaucratic tool ...

Today trying to figure out things about Tiny Tim. The task is quite simple to make it work and it already comes in SciSoft. Read the manual to make it work, had the assistance of Elif Kutdemir, Bodo's student, and it works ... but is it really doing what I need?? Good question!

The point is: I'm using ACS DRZ images. MultiDrizzle corrects the geometric (making a mosaic with the 2 CCDs that looks like a tilted square) and it affects the PSF (HST/ACS Handbook). Is Tiny Tim taking that in consideration?? How to deal with the pix position with 2 CCDs in a single frame?? Couldn't find the answer. So I e-mailed John Krist at JPL (not in STSCI since 2004 - took me a e-mail bounce to figure that out). If anyone knows the answer PLEASE let me know!

Since the day was spent on that, I decided to try to get rid of problems.

SExtractor that comes with SCISOFT was not working well on my MacBook. Installed the same version on the linux machine to compare results. Well, same version, same image, same configuration, same everything and the results are different (bkg, bkg rms, thres, # of objects) and it doesn't work with the option "-BACKGROUND" (no objects are detected), but the different linux machines have the same result. So e-mail to Nor Pirzkal asking about it also ... again, if anyone has a clue about it, let me know.

Also yesterday working on the introduction of the new IGL paper.

Next week in Insbruck to give a talk and to work with Marco Barden on the GALAPAGOS code in the group of Sabine Schindler.

posted by Cris Da Rocha @ 9:34 PM