GTAC Observation Log

1. Date : 04/02/2017
2. Observation Sr. No. : 9179
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) : Navnath, Pramod, Surender
8. Command File : /odisk/gtac/cmd/31_057/03feb.cmd
9. LTA File : /gwbifrdata/03feb/31_057_500_03feb2016.lta, /gwbifrdata/03feb/31_057_1460_03feb2016.lta
10. LogFlag File : /odisk/online1/logflags/PNTG.FLAGS.2231, /odisk/online1/logflags/31_057B.FLAGS.5, /odisk/online1/logflags/31_057.FLAGS.17

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) :
W05 : Feed Jammed

33. Note for Backup :

34. Start and End Time of Obs.(IST): 03 Feb 2017 19:00:00 - 04 Feb 2017 00:01:00

35. ONLINE Machine : Lenyadri

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

37. Comments (During Observations) :
Antennas Selection for dual frequency :

# sub 2 #325MHz # C00 C02 C05 C13 W01 W02 E02 E04 S01 S02
ante 10 7 5 19 11 8 13 17 21 26 27
cp 0;defs 2;subar 2


# sub 4 # C01 C03 C04 C06 C08 C09 C10 C11 C12 C14 W03 W04 W05 W06 E03 E05 E06 S03 S04 S06
ante 20 6 1 3 20 24 4 12 9 2 10 14 15 16 25 18 22 23 28 29 30
cp 0;defs 4;subar 4
 Antennas selected in GAC :
Beam1 : C00 C02 C05 C13 E02 = 5
Beam2 : C01 C03 C04 C06 C08 C09 C10 C11 C12 C14 E02 =11 

---------------------------------------------------------------------------
19:20 : Started set up.
20:00 : Power equalized and phasing done on 3C48.
20:09 " Started command file.
 '/odisk/gtac/cmd/31_057/03feb.cmd'
00:01 : Stopped command file and observing session over.