GTAC Observation Log

1. Date : 03/02/2020
2. Observation Sr. No. : 11865
3. Observer : James McKee, BHAL CHANDRA JOSHI
4. Observer\'s Email : jamesmckee23@gmail.com, bcj@ncra.tifr.res.in
5. Project Name : Broadband Observations of Giant Pulses from the Millisecond Pulsars B1937\\\\+21 and B1957\\\\+20
6. Project Code : 37_004
7. Operator(s) : Nilesh, Rupsing, Sachin, Shriram, Surender
8. Command File : /odisk/gtac/cmd
9. LTA File : /gsbifrdata/03feb/37_004a_b3_03feb2020_gsb.lta, /gsbifrdata1/03feb/37_004b_b4_03feb2020_gsb.lta, /gwbifrdata1/03feb/37_004_03feb2020_band4_gwb.lta, /gwbifrdata1/03feb/37_004_03feb2020_band3_gwb.lta
10. LogFlag File : /odisk/online1/logflags/37_004B.FLAGS.3, /odisk/online1/logflags/37_004B.FLAGS.2, /odisk/online1/logflags/37_004A.FLAGS.3, /odisk/online1/logflags/37_004A.FLAGS.2

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 612 MHz ,RF2 : 612 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 550 MHz, ILO2 : 550MHz , IVLO1 : 62 MHz, IVLO2 : 62 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 : OFF
20. Stokes : Total_Intensity
21. Beam - 1 : OFF
22. Beam - 2 : Volt
23. ACQ BW : 16.666666 MHz
24. Final BW : 0 MHz; Step # 0
25. Maximum Channels : 256
26. Channel Numbers : 0:255:1
27. LO5 -1  : 138
28. LO5 -2  : 167

29. Frequency Parameters (TPA) : 612 612 550 550 62 62
30. Integration Time : 2.0132 Sec
31. No of Antennas Working(Fringing) at the beginning :27

32. Name of Non-Working Antennas (with reason for each) :
C14 : Taken for SMTS work.
E04 : FPS problem.
W03 : Taken for SMTS work.
33. Note for Backup :

34. Start and End Time of Obs.(IST): 03 Feb 2020 15:00:00 - 03 Feb 2020 16:55:00

35. ONLINE Machine : Shivneri

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

37. RFI Status :

38. Comments (During Observations) :
Note : Observation could not completed due to power failure.
Ref callsheets no 2020.0194,2020.0193
------------GWB Setting---------
GPU_MODE  	: Realtime
GPU_LTA  	: 2
GPU_ACQ_BW  	: 100.0000
GPU_FINAL_BW  	: 100.0000
GPU_EDGE_FRQ  	: 0
GPU_CHAN_MAX  	: 1024
GPU_CHAN_NUM  	: 0:1023:1
GPU_STOKES  	: Total_Intensity
GPU_SIDEBAND  	: 1 1
GPU_RF4  	: 550  550
GPU_DDCLO4  	: 0.0000  0.0000
GPU_SB4  	: -1 -1
GCODE4  	: 37_004A
GPU_CNTRL  	: ONLINE
GPU_FSTOP  	: ON
GPU_BEAM_1  	: Voltage
GPU_BEAM_2  	: Voltage
GPU_BEAM_3  	: OFF
GPU_BEAM_4  	: OFF
GPU_BM_INT  	: 128
GPU_GAINEQ  	: OFF
GPU_TPA  	: From GWB GUI.
GPU_BITS  	: 8 Bits
GPU_FILRFI  	: RFI Filterring OFF
GPU_BEAM_S  	: OFF
--------------------------------
14:59:00 : Started set-up.
15:35:00 : Phasing and power eq done
----------------------------------
15:38 - 16:27 :  Frequently getting ABC resets for many antennae.
16:27 : Retarted set-up.
16:45 : Set-up done.
16:46 : Due to power failure could not do simultaneous observation with GMRT. Closing 37_004 observation as per observer\'s instruction.
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