GTAC Observation Log

1. Date : 18/08/2018
2. Observation Sr. No. : 10479
3. Observer : Elliott Polzin, Bhaswati Bhattacharyya, Rene Breton, Mallory Roberts, Ben Stappers
4. Observer's Email : elliott.polzin@postgrad.manchester.ac.uk, bhaswati.bhattacharyya78@gmail.com, rene.breton@manchester.ac.uk, malloryr@gmail.com, Ben.Stappers@manchester.ac.uk
5. Project Name : Characterisation of the radio eclipses of black widows and redbacks
6. Project Code : 34_016
7. Operator(s) : Pramod, Rupsing
8. Command File : /odisk/gtac/cmd/jory/34_016_18aug.cmd
9. LTA File : /gsbifrdata1/18aug/34_016_610MHz_18aug2018_gsb.lta, /gsbifrdata1/18aug/34_016_325MHz_18aug2018_gsb.lta, /gwbifrdata2/18aug/34_016_850LO_18aug2018_gwb.lta, /gwbifrdata2/18aug/34_016_500LO_18aug2018_gwb.lta
10. LogFlag File : /odisk/online1/logflags/34_016A.FLAGS, /odisk/online1/logflags/34_016.FLAGS.3

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 306 MHz ,RF2 : 306 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 255 MHz, ILO2 : 255MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 
13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 20+10 dB, 32 MHz,OFF, IF-CH2 : 20+10 dB, 32 MHz,OFF

GSB SETTINGS :

14. GSB Host : gsbm1
15. GSB Mode : Realtime
16. GSB LTA : 8
17. GSB CTRL : ONLINE
18. GSB Fstop : ON
19. GAIN EQ : OFF
20. Stokes : Total_Intensity
21. Beam - 1 : PA
22. Beam - 2 : PA
23. ACQ BW : 33.333333 MHz
24. Final BW : 0 MHz; Step # 0
25. Maximum Channels : 512
26. Channel Numbers : 0:511:1
27. LO5 -1  : 149
28. LO5 -2  : 156

29. Frequency Parameters (TPA) : 306 306 255 255 51 51
30. Integration Time : 2.0132 Sec
31. No of Antennas Working(Fringing) at the beginning :28

32. Name of Non-Working Antennas (with reason for each) :
C02 : No fringe @130 pol.
S02 : Feed jam.

33. Note for Backup :

34. Start and End Time of Obs.(IST): 18 Aug 2018 16:00:00 - 18 Aug 2018 21:05:00

35. ONLINE Machine : Shivneri

36. No of Antennas Working(Fringing) at the end :28

37. Comments (During Observations) :
# GWB GAC configuration is as follows : 
---------------------------------------------------------------------------
# BEAM-3:130 :: C00 C01 C05 C10 C11 C12 C13 Total=7
# BEAM-3:175 :: C00 C01 C02 C05 C10 C11 C12 C13 Total=8
# BEAM-4:130 :: C03 C04 C06 C08 C09 C14 E02 E03 E04 S01 
                S03 S04 W01 W02 W03 W04 Total=16
# BEAM-4:175 :: C03 C04 C06 C08 C09 C14 E02 E03 E04 S01 
                S03 S04 W01 W02 W03 W04 Total=16
---------------------------------------------------------------------------
# GSB GAC configuration is as follows :
 
# BEAM-1:130 :: C00 C01 C05 C10 C11 C12 C13 Total=7
# BEAM-1:175 :: C00 C01 C02 C05 C10 C11 C12 C13 Total=8
# BEAM-2:130 :: C03 C04 C06 C08 C09 C14 E02 E03 E04 S01 
                S03 S04 W01 W02 W03 W04 Total=16
# BEAM-2:175 :: C03 C04 C06 C08 C09 C14 E02 E03 E04 S01 
                S03 S04 W01 W02 W03 W04 Total=16
--------------------------------------------------------------------------
GWB 500 MHz, LSB, 200 MHz, 4K, beam_int=4 (81us), PA+PA (S2 on gwbh9)
GWB 850 MHz, LSB, 200 MHz, 4K, beam_int=4 (81us), PA+PA (S4 on gwbh10)
--------------------------------------------------------------------------
15:50 : Power eq both GSB+GWB done
--------------------------------------------------------------------------
15:55 : Started command file
--------------------------------------------------------------------------
20:55 : Source is near to zenith(arm antennas 2 to 3 degree off) only     
        suba4(610MHz).
--------------------------------------------------------------------------
21:00 : Stopped command file and observation session over.