EP017

PI: Patnaik
Title: NGC 1977

Session: February 1996 (session 1)
Frequency: 18 cm
Mode: B
Obs time (UT): 40 EU 15:00(09/02)-23:00(09/02)
Stations: SLNRJW+MERLIN
Processor: Bonn
EU Mk3 Tapes/St.: 1

Comment


To give feedback on this experiment, click here

Experiment Feedback

Onsala (John Conway at Mon Feb 19 05:47:21 EST 1996) Minor failures
Lost first and part of secon tape pass due to not having tapeformb set up in station procedure file. Up to 4 out of the 14 channels may be affected by high power from phase-cals, apparently malfunctioned part way through expt.

Simeiz (Alexandre Volvatch at Wed Feb 21 08:21:24 EST 1996) Minor failures
3 passes (16:23,17:01,18:36) were omited because we had problems with TTY distributer.

Jodrell (Dave Henstock at Thu Feb 22 06:02:24 EST 1996) Minor failures
Bad RFI during experiment, mainly in VCs 7,9,10, but also sporadically in VCs 4,11,12. Consequently, some VC levels will be low due to AGC. Due to RFI, the Tsys measurements are only crudely calibrated. Specific Problems: 40 15:26-16:10 Off source due to high winds 40 22:00-22:50 Field system crash: scans between these times will have been lost. Tsys is in Jy, need to multiply measured Tsys by 1.23 for better calibration.

Cambridge (Dave Henstock at Thu Feb 22 06:08:13 EST 1996) Minor failures
Note there are no Tsys measurements for Cambridge. Specific Problems: Day 40 15:18-15:39 Confusion over schedule, data may be lost 15:00-16:04 Reverse passes had wrong heads enabled 16:19-17:08(?) Field System crash - lost data 18:50-19:00 Lost data due to software problem. Tsys is 212 Jy (from EVN status).

Medicina (Venturi Tiziana at Thu Feb 22 09:42:14 EST 1996) Success
No problems reported. Experiment carried out successully.

Noto (Corrado Trigilio at Sat Feb 24 06:02:38 EST 1996) Success
No problems reported. Tsys values in logfile need to be corrected; I will provvide corrected values. No phase cal.

Westerbork (foley at Mon Feb 26 11:36:57 EST 1996) Success

Calibration (Fredrik T Rantakyro at Thu Sep 26 10:08:44 EDT 1996) Minor failures
An ANTAB formatted file for the experiment can be found on VLBEER