I’m currently enrolled in the CCD photometry course taught by Ed Wiley, and I’ve run into a problem. He suggested I post it here. I’m trying to use the Transform Generator to calculate transformation coefficients for four stacked image sets collected using B,I, R, and V filters (four images per filter). I created the photometry files in VPHOT as instructed, and downleaded them as TXT files, so I have four files. When I submit these four files together to TG, I get the error message shown in the screen capture below. It basically seems to say that the first of the stars in the filed for M67 is “not in list.”
The script I’m running is TG_V6.9a.pyw. I’m using the Linux Ubuntu operating system, release 18.04.6, with the Xfce desktop (xubuntu), and running the TG software in the Spyder IDE with Pythion v 3.9. I successfully used this version of TG for a previous exercise and it worked fine, although that exercise ran with a TG\AIP4WIN input file. I’m also attaching a copy of the TG GUI. Has anyone else run into this error before? I’ve tried the same procedure on two separate computers, but both are configured pretty much the same in terms of operating system and application software. I’m going to try to run on an old Mac I have, just to see if I get any different results but I would much rather use it on my more up-to-date Linux machines.
