[daip] New Ticket - [!WEG-660226]: Trouble DBCON-ing GBT data

[Katie Mae Chynoweth]

New Ticket: Trouble DBCON-ing GBT data

I have two datasets that were taken with the exact same setup, so they ought to be DBCON-ing with no trouble. However, I get this error message:

localh> DBCON1: MULTI-FREQUENCY DATA BASES INCOMPATABLE

There are slight differences in the frequency reference and channel width values. I tried changing the headers so those values are the same, but I get the same error message. Is there a way to combine these two UV datasets? I've put the image headers below.

Thanks,
Katie

Here are the two file headers:

>getn 19
AIPS 1: Got(1)   disk= 1  user= 101   type=UV   M101.1417.1
>imh
AIPS 1: Image=M101      (UV)         Filename=M101        .1417  .   1
AIPS 1: Telescope=NRAO_GBT           Receiver=Rcvr1_2
AIPS 1: Observer=Katie Ch            User #=  101
AIPS 1: Observ. date=25-JAN-2011     Map date=01-FEB-2011
AIPS 1: # visibilities      1400     Sort order  TB
AIPS 1: Rand axes: RA  DEC  BEAM  TIME1
AIPS 1: ----------------------------------------------------------------
AIPS 1: Type    Pixels   Coord value     at Pixel     Coord incr   Rotat
AIPS 1: COMPLEX      3   1.0000000E+00       1.00  1.0000000E+00    0.00
AIPS 1: STOKES       2  -1.0000000E+00       1.00 -1.0000000E+00    0.00
AIPS 1: FREQ       512   1.4179228E+09     257.00  2.4412320E+04    0.00
AIPS 1: RA           1    14 02 11.060     132.00         88.000    0.00
AIPS 1: DEC          1    54 20 55.694      66.00         88.000    0.00
AIPS 1: ----------------------------------------------------------------
AIPS 1: Coordinate equinox 2000.00
AIPS 1: Conv size= 523.33 X 523.33   Position angle=   0.00
AIPS 1: Rest freq   1420.406         Vel type: OPTICAL wrt SUN
AIPS 1: Alt ref. value  0.00000E+00  wrt pixel  358.71
AIPS 1: Maximum version number of extension files of type HI is   1

>getn 20;imh
AIPS 1: Got(1)   disk= 1  user= 101   type=UV   M101.1417.2
AIPS 1: Image=Ref       (UV)         Filename=M101        .1417  .   2
AIPS 1: Telescope=NRAO_GBT           Receiver=Rcvr1_2
AIPS 1: Observer=Katie Ch            User #=  101
AIPS 1: Observ. date=28-JAN-2011     Map date=01-FEB-2011
AIPS 1: # visibilities       220     Sort order  TB
AIPS 1: Rand axes: RA  DEC  BEAM  TIME1
AIPS 1: ----------------------------------------------------------------
AIPS 1: Type    Pixels   Coord value     at Pixel     Coord incr   Rotat
AIPS 1: COMPLEX      3   1.0000000E+00       1.00  1.0000000E+00    0.00
AIPS 1: STOKES       2  -1.0000000E+00       1.00 -1.0000000E+00    0.00
AIPS 1: FREQ       512   1.4179067E+09     257.00  2.4412359E+04    0.00
AIPS 1: RA           1    14 03 05.425     390.00         88.000    0.00
AIPS 1: DEC          1    55 06 18.569     220.00         88.000    0.00
AIPS 1: ----------------------------------------------------------------
AIPS 1: Coordinate equinox 2000.00
AIPS 1: Conv size= 523.33 X 523.33   Position angle=   0.00
AIPS 1: Rest freq   1420.406         Vel type: OPTICAL wrt SUN
AIPS 1: Alt ref. value  0.00000E+00  wrt pixel  359.37
AIPS 1: Maximum version number of extension files of type HI is   1


Ticket Details
===================
Ticket ID: WEG-660226
Department: AIPS Data Processing
Priority: Default
Status: Open
Link:  https://help.nrao.edu/staff/index.php?_m=tickets&_a=viewticket&ticketid=619