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Diffstat (limited to 'noao/obsutil/src/ccdtime/Revisions')
| -rw-r--r-- | noao/obsutil/src/ccdtime/Revisions | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/noao/obsutil/src/ccdtime/Revisions b/noao/obsutil/src/ccdtime/Revisions new file mode 100644 index 00000000..44405b23 --- /dev/null +++ b/noao/obsutil/src/ccdtime/Revisions @@ -0,0 +1,79 @@ +.help revisions Jun88 noao.obsutil +.nf + +======= +V2.12.2 +======= + +ccdtime.par +t_ccdtime.x + 1. The minimum seeing is now 0.001. + 2. The formating of the seeing was changed in case the seeing is set + less than 0.1. + (4/24/03, Valdes) + +======= +V2.12.1 +======= + +===== +V2.12 +===== + +t_ccdtime.x +../doc/ccdtime.hlp + It is now an error if time<0, time>10-000, abs(mag)>40, snr<0 or + snr>100000. (8/24/00, Valdes) + +../doc/ccdtime.hlp + In the formula for r(sky) was pixel area term was in the wrong place. + (3/9/99, Valdes) + +t_ccdtime.x + For the case where SNR is very large and a time is specified the + iteration on the magnitude might not complete. The iteration is now + capped at 100 and the test for convergence is now normalized. + (11/6/98, Valdes) + +t_ccdtime.x +../doc/ccdtime.hlp + 1. The calculation of exposure time given a SNR was changed from an + interative solution to an analytic solution. + 2. The times are printed to 0.01s. + 3. The photometry aperture is now the rounded-up integer with a minimum + of 9 pixels. + (9/8/98, Valdes) + +t_ccdtime.x +ccddb.x +../doc/ccdtime.hlp + 1. The database keywords can now be index by reference to the telescope, + filter, and/or telescope. + 2. A new filter keyword, "extinction", was added to specify the + extinction. + 3. The extinction is now used to fixe the previous incorrect behavior + that used 1 mag/airmass extinction. The old results are preserved + by making the default extinction be 1 if missing. However the + database files should be updated to have correct extinctions. + (8/19/98, Valdes) + +ccddb.x +../doc/ccdtime.hlp + 1. The code would not work with database entries containing whitespace. + 2. The help was not correct in describing how the number of pixels used + in the photometry is calculated from the seeing FWHM. + (4/5/94, Valdes) + +t_ccdtime.x + Modified CCDTIME to use a plate scale instead of the f/ratio and to + include an airmass term. (10/23/93, Valdes) + +t_ccdtime.x + +ccddb.x + +ccdtime.x - +ccdtime.par +doc/ccdtime.hlp + Revised CCDTIME to use a telescope/filter/detector database and to + compute and print additional information. (8/16/93, Valdes) + +.endhelp |