casa6

    times = tb.getcol('TIME')

    first_time = times[0]

    last_time = times[-1]

    tb.close()

​

    # remove existing data copy

    if os.path.exists(outvis) and overwrite:

        print("REMOVING EXISTING COPY")

        shutil.rmtree(outvis)

        print("File ", outvis, " already exists, set overwrite=True or change outvis name")

        return        

    # run the antab parsing and table filling

    shutil.copytree(vis, outvis)

    antab_interp(vis, outvis, antab, ant_names, n_band, spws,

                    gc_interval, gc_time, first_time, last_time,

                    append_tsys, append_gc)

​

​

​

    # Method used in FITSDateUtil

    mjd_epoch = dt.datetime(1858, 11 , 17, 0, 0, 0)

​

    mjd_int = int(mjd / 86400)

    delta = dt.timedelta(days=mjd_int)

    return mjd_epoch + delta

​

def mjd_seconds(yy, mm, dd, d=0):

    if (mm < 3):

        mm += 12

​

    dd += d

    b = 0

​

    if (yy>1582 or (yy==1582 and (mm>10 or (mm==10 and dd >= 15)))): 

        b = 2 - b + int(b/4)

    val = np.floor(365.25*yy) + np.floor(30.6001*(mm+1)) + dd - 679006.0 + b

    return val

​

​

def get_timetuple(ts):

    # ts as string with these possible formats:

    # hh.hh      

    # hh:mm.mm