Re: Add new astronomical values such as BJD_TDB, AIRMASS, etc. to an exisiting measurements table
With a measurements table open in Multi-plot, select Multi-plot
Main->Table->"Add new astronomical data columns to table..."
and the dialog shown below will open, along with an instance of
Coordinate Converter which has a window title of "MP Coordinate
Converter". First, in the upper right selection box, select an
existing Date/Time data column name from the active table. The time
should normally be a mid-exposure time in the format of JD_UTC,
HJD_UTC, or BJD_TDB. Then select the corresponding "Input Time
Format" to the left of the selection box. Select the data column(s)
to add to the table and change the default column name if desired.
DO NOT press "Update Table" yet.
Now in the "MP Coordinate Converter" panel, add the target RA and
Dec or a SIMBAD resolvable Object ID, and select your Observatory ID
(or enter the observatory Latitude, Longitude, and Altitude by
selecting "Custom Lat, Lon, and Alt entry" at the top of the
Observatory ID list. All "Epoch of interest" (time) boxes are
disabled. Time will be extracted from the table column identified
Now go back to the "Add new astronomical data to table" panel and
click "Update Table". The new data columns will be calculated from
the existing time column, the target coordinates, and the geographic
location of the observatory and added to the active measurements
table. The plot panels may flash while the user interface is updated
with the new data column names.
If you want to retain the new data columns, be sure to save the
updated measurements table. The newly created columns can also be
selected for output in the Multi-plot Main->"Save data subset to