Appendix: Observing Details for project TSPECTEST_02

The data were acquired from 5pm-11:30pm 18 August 02 (EDT) (9pm UT
18 August 02 to 03:30am 19 August 02 UT). The goal was to obtain
a variety of standard spectra with the Spectrometer, as well as to
perform some frequency switched and LO1 tests (the results of these
are summarised elsewhere).

Data was acquired using M&C version 3.5.0, but with a "test" version
of the LO1A synthesizer manager which had upgrades to improve the
frequency switching behaviour. This was expected to have no effect on
the details of Doppler tracking or frequency calculations.

The GBT equipment was initially set up using the "tiger_setup.g" setup
script, however all devices were subsequently checked and configured
through CLEO. N.B For Scans 1 through 12, the IF rack was inadverntently
set up with 20MHz passband filters, even though some 40MHz and 50MHz
spectra were obtained. For scans 13 onwards, the 80MHz passband filters
were selected.

The primary source observed was U9179o, with 3C295 used for pointing.


Scan Information

Reminder: Scans 1-12 were all taken with a 20MHz bandpass filter, Scans
13 - 62 with an 80MHz bandpass filter.

DCR

 1-4  pointing check on 3C295 
15-18 pointing check on 3C295 
39-42 pointing check on 3C295 


Spectral Processor

  6   M&C bug caused J2000 i.s.o of B1950 position - no use
  7   2 x 10MHz, FSW1:2 +/- 2.5MHz, 1sec integration 300 sec scan   
  8   2 x 40MHz, FSW1:2 +/- 2.5MHz, 1sec integration 300 sec scan
 9-10 2 x 40MHz, OffOn, 10 sec integration, 2 x 240 sec scans
11-12 2 x 40MHz, OffOn, 10 sec integration, 2 x 240 sec scans


Spectrometer 

  5   2 x 12.5MHz, FSW1:2 +/- 2.5MHz, 1sec integration 300 sec scan
 13   Configuration error (IF set for 50MHz, Spectrometer for 12.5MHz) - no use
 14   2 x 50MHz, FSW1:2 +/- 2.5MHz, 1sec integration 300 sec scan
 19   2 x 50MHz, FSW1:2 +/- 2.5MHz, 1sec integration 30 sec scan
 20   As above, should be 300sec scan, aips++ report 540 and will not process
21-23 Spectrometer mis-configured, all no use

 24   2 x 50MHz, total power Track to confirm correct Setup
25-26 2 x 50MHz, OffOn, 10sec intregration, 2 x 30sec scans test scan
27-28 2 x 50MHz, OffOn, 10sec integration, 2 x 300 sec scans
29-30 2 x 50MHz, OffOn, 10sec integration, 2 x 300 sec scans
31-32 2 x 50MHz, OffOn, 10sec integration, 2 x 300 sec scans
33-34 2 x 50MHz, OffOn, 10sec integration, 2 x 300 sec scans
35-36 2 x 50MHz, OffOn, 10sec integration, 2 x 300 sec scans
37-38 2 x 50MHz, OffOn, 10sec integration, 2 x 300 sec scans

Scans 43 to 61 are all on U9179o but mislabelled 3C295!

43-44 2 x 12.5MHz, OffOn, 10sec integration, 2 x 30sec scans test scan
45-46 2 x 12.5MHz, OffOn, 10sec integration, 2 x 300sec scans
 47   First half of an OffOn, but second scan fails due to an LO1 error
48-49 2 x 12.5MHz, OffOn, 10sec integration, 2 x 30sec scans test scan
50-51 2 x 12.5MHz, OffOn, 10sec integration, 2 x 300sec scans
52-53 2 x 12.5MHz, OffOn, 10sec integration, 2 x 300sec scans
54-55 2 x 12.5MHz, OffOn, 10sec integration, 2 x 300sec scans
56-57 2 x 12.5MHz, OffOn, 10sec integration, 2 x 300sec scans
58-59 2 x 12.5MHz, OffOn, 10sec integration, 2 x 300sec scans
60-61 2 x 12.5MHz, OffOn, 10sec integration, 2 x 300sec scans
 62   Attempted FSW1:2 but Spectrometer mis-configured