GTAC Observation Log

1. Date : 04/03/2017
2. Observation Sr. No. : 9237
3. Observer : Yashwant Gupta, BHAL CHANDRA JOSHI, Jayanta Roy, Yogesh Maan, Kishalay De, Manjari Bagchi, Gopakumar Achamveedu, Nikhil Vijay Naik
4. Observer's Email : ygupta@ncra.tifr.res.in, bcj@ncra.tifr.res.in, jroy@ncra.tifr.res.in, ymaan@ncra.tifr.res.in, ugkishalayde@ug.iisc.in, manjari.bagchi@gmail.com, gopu.tifr@gmail.com, naiknikhil27@gmail.com
5. Project Name : Towards precision pulsar timing with the upgraded GMRT
6. Project Code : 31_057
7. Operator(s) : Deepak, Pramod
8. Command File : /odisk/gtac/cmd
9. LTA File : /gwbifrdata1/04mar/31_057_500_04mar2017.lta, /gwbifrdata1/04mar/31_057_1460_04mar2017.lta
10. LogFlag File : /odisk/online1/logflags/31_057B.FLAGS.8, /odisk/online1/logflags/31_057.FLAGS.21

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1454 MHz ,RF2 : 1454 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1505 MHz, ILO2 : 1505MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 
13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 32 MHz,ON, IF-CH2 : 4+14 dB, 32 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 : 33.333333 MHz
24. Final BW : 0 MHz; Step # 0
25. Maximum Channels : 256
26. Channel Numbers : 0:255:1
27. LO5 -1  : 149
28. LO5 -2  : 156

29. Frequency Parameters (TPA) : 1454 1454 1505 1505 51 51
30. Integration Time : 16.1061 Sec
31. No of Antennas Working(Fringing) at the beginning :29

32. Name of Non-Working Antennas (with reason for each) :
E03 : Taken for feed cage painting.

33. Note for Backup :

34. Start and End Time of Obs.(IST): 04 Mar 2017 19:00:00 - 04 Mar 2017 22:10:00

35. ONLINE Machine : Lenyadri

36. No of Antennas Working(Fringing) at the end :29

37. Comments (During Observations) :
17:00 : Started set up.
Split antennas as ,

GWB data recorded in /data9 disk.

# 325MHz # sub 2 # C00 C01 C04 C09 C13
ante 5 7 6 3 4 11
cp 0;defs 2;subar 2

# 1420 MHz # sub 4 # C02 C03 C05 C06 C08 C10 C11 C12 C14 W01 W02 W03 W04 W05 W06 E02 E03 E04 E05 E06 S01 S02 S03 S04 S06
ante 25 5 1 19 20 24 12 9 2 10 8 13 14 15 16 25 17 18 21 22 23 26 27 28 29 30
cp 0;defs 4;subar 4

# GWB GAC configuration is as follows : 
# BEAM-1:130 :: C00 C01 C04 C09 C13 Total=5
# BEAM-1:175 :: C00 C01 C04 C09 C13 Total=5
# BEAM-2:130 :: C02 C03 C05 C06 C08 C10 C11 C12 C14 E02 W01 Total=11
# BEAM-2:175 :: C02 C03 C05 C06 C08 C10 C11 C12 C14 E02 W01 Total=11
-------------------------------------------------------------------------
17:30 : Power equalized and phasing done on 3C147.
17:33 " Started command file.
 '/odisk/gtac/cmd/31_057/4mar17.cmd'
22:00 : Stopped scan and observation session is over.