HFIX N1 N2 TELESCOPE -- Computes HJD, heliocentric corrections etc.
Some of these are used by MOLLY routines (e.g.
Vearth), so apply HFIX as soon as possible in
your use of MOLLY.
NB: the following header items must be present for HFIX to operate:
C Object -- Object name
D UTC -- UTC at middle of exposure
I Day -- Day of month
I Month -- Month
I Year -- Year (as in 1994)
(RJD can substitute for UTC and date)
You will be prompted for object coordinates if they are not present.
Parameters:
N1 -- Slot number of first spectrum to plot.
N2 -- Slot number of last spectrum to plot.
TELESCOPE -- Name of observing site/telescope. The program first looks
for the longitude, latitude and height of the observing site in the
headers. If all are present, they will be used. If any are
not present, the site as set by the user will be used.
No selection.
Format of object coordinates if read from a file:
IP Peg
1950. 23 34 56 +18 06 06 24494056.8492 0.1578033
Another star
1950. 00 03 45 -00 -06 05 2445000. 1.000
Note the need for a negative sign on minutes of dec in second example
because degrees are zero.
This command belongs to the classes: headers .