GTAC Observation Log

1. Date : 24/06/2017
2. Observation Sr. No. : 9514
3. Observer : Peter Kamphuis, Baerbel Silvia Koribalski, Paolo Serra, Lister Staveley-Smith, Danail Obreschkow, Thomas Martinsson, Kristine Spekkens, Gyula I.G. Józsa, George Heald, Julia Bryant, James Allen, Boris Zhivkov Deshev, Attila Popping, Jayaram Narayanan Chengalur, Tobias Westmeier, Martin Meyer, Wang, Oh, Johnson, Barbara Catinella, Luca Cortese
4. Observer's Email : peterkamphuisastronomy@gmail.com, Baerbel.Koribalski@csiro.au, serra@astron.nl, Lister.Staveley-Smith@uwa.edu.au, danail.obreschkow@gmail.com, martinsson@astro.rug.nl, kristine.spekkens@rmc.ca, gjozsa@ska.ac.za, heald@astron.nl, jbryant@physics.usyd.edu.au, j.allen@physics.usyd.edu.au, boris@to.ee, attila.popping@uwa.edu.au, chengalur@ncra.tifr.res.in, tobias.westmeier@uwa.edu.au, martin.meyer@uwa.edu.au, j.wang@csiro.au, se-heon.oh@uwa.edu.au, Megan.Johnson@csiro.au, barbara.catinella@uwa.edu.au, luca.cortese@uwa.edu.au
5. Project Name : Bridging the Gap from from Optical to 21cm with the GMRT
6. Project Code : 32_007
7. Operator(s) : Nilesh, Pramod
8. Command File : /odisk/gtac/cmd/32_007/obs.cmd
9. LTA File : /gsbifrdata1/24jun/32_007_24jun2017.lta
10. LogFlag File : /odisk/online1/logflags/32_007.FLAGS

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1405.8567 MHz ,RF2 : 1405.8567 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1345 MHz, ILO2 : 1345MHz , IVLO1 : 60.8567 MHz, IVLO2 : 60.8567 MHz 
13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 16 MHz,ON, IF-CH2 : 4+14 dB, 16 MHz,ON

GSB SETTINGS :

14. GSB Host : gsbm1_shivneri
15. GSB Mode : Realtime
16. GSB LTA : 8
17. GSB CTRL : ONLINE
18. GSB Fstop : ON
19. GAIN EQ : ON
20. Stokes : Total_Intensity
21. Beam - 1 : OFF
22. Beam - 2 : OFF
23. ACQ BW : 16.666666 MHz
24. Final BW : 0 MHz; Step # 0
25. Maximum Channels : 512
26. Channel Numbers : 0:511:1
27. LO5 -1  : 139.1433
28. LO5 -2  : 165.8567

29. Frequency Parameters (TPA) : 1405.8567 1405.8567 1345 1345 60.8567 60.8567
30. Integration Time : 16.1061 Sec
31. No of Antennas Working(Fringing) at the beginning :25

32. Name of Non-Working Antennas (with reason for each) :
C05 : : Maintenance.
C13 : : Servo problem.
C14 : : Maintenance.
W03 : : Maintenance.
E02 : 175 pol low fringe

33. Note for Backup :

34. Start and End Time of Obs.(IST): 24 Jun 2017 14:05:00 - 24 Jun 2017 19:30:00

35. ONLINE Machine : Lenyadri

36. No of Antennas Working(Fringing) at the end :27

37. Comments (During Observations) :
14:00 : Started settings.
---------------------------------------
GSB line observation setup
RF band= 1390 (1330 - 1450)
LO1= 1345 (lower)
IFBW= 18
GSB [ACQ] BW= 16.6666
Total Channel= 512

Line/Center Frequency= 1414.19
CH#[0]= 1405.8567
CH#[512]= 1422.5233
BW= +16.6666
CW= 32.55 (KHz.)

Digital SubBand/step#= 0
GSB_CONFIG LO5= 139.1433  165.8567
LTA_FILE   L05= 139.1433  165.8567
BASE_BAND  LO4= 60.8567  60.8567
tpa 1405.8567 1405.8567 1345 1345 60.8567 60.8567
---------------------------------------

14:06 : Started scan on 3C147.
14:21 : C13 released for observation.
14:23 : Stopped scan.
14:25 : Started command file.
            /odisk/gtac/cmd/32_007/obs.cmd
15:48 : Electrical power glitch.
C00,C06,C12 and S02 Applied brakes.
From 15:48 to 16:05 : Set up done for observation.
16:05 : Restarted command file.
16:40 : C13 servo problem.
17:00 : W03,C00,C06,C12 started working.
17:56 : S02,C14 started working.
18:43 : Stopped command file.
18:49 : Started scan on 3C48.
19:00 : Stopped scan and observation session is over.