GTAC Observation Log

1. Date : 28/12/2020
2. Observation Sr. No. : 12733
3. Observer : Yogesh Maan, BHAL CHANDRA JOSHI
4. Observer\'s Email : ymaan4@gmail.com, bcj@ncra.tifr.res.in
5. Project Name : Characterizing a glitch event in the magnetar XTE J1810-197
6. Project Code : ddtC161
7. Operator(s) : Manisha, Sachin
8. Command File : /odisk/gtac/cmd/bcj/28dec_ddt/obs.cmd
9. LTA File : /gwbifrdata2/28dec/ddtc161_28dec2020_gwb.lta.1, /gwbifrdata2/28dec/ddtc161_28dec2020_gwb.lta
10. LogFlag File :  

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 : 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) : 306 306 255 255 51 51
30. Integration Time : 4.0265 Sec
31. No of Antennas Working(Fringing) at the beginning :26

32. Name of Non-Working Antennas (with reason for each) :
C03 : Mechanical Work.
C14 : Feed problem.
E02 : Given for maintenance.
S03 : Given for maintenance.

33. Note for Backup :

34. Start and End Time of Obs.(IST): 28 Dec 2020 12:10:00 - 28 Dec 2020 12:10:00

35. ONLINE Machine : Shivneri

36. No of Antennas Working(Fringing) at the end :26

37. RFI Status :

38. Comments (During Observations) :

------------GWB Setting---------
GPU_MODE  	: Realtime
GPU_LTA  	: 8
GPU_ACQ_BW  	: 200.0000
GPU_FINAL_BW  	: 200.0000
GPU_EDGE_FRQ  	: 0
GPU_CHAN_MAX  	: 1024
GPU_CHAN_NUM  	: 0:1023:1
GPU_STOKES  	: Total_Intensity
GPU_SIDEBAND  	: 1 1
GPU_RF4  	: 500  500
GPU_DDCLO4  	: 0.0000  0.0000
GPU_SB4  	: 1 1
GCODE4  	: DDTC161
GPU_CNTRL  	: ONLINE
GPU_FSTOP  	: ON
GPU_BEAM_1  	: Voltage
GPU_BEAM_2  	: PA
GPU_BEAM_3  	: OFF
GPU_BEAM_4  	: OFF
GPU_BM_INT  	: 32
GPU_GAINEQ  	: ON
GPU_TPA  	: From GWB GUI.
GPU_BITS  	: 8 Bits
GPU_FILRFI  	: RFI Filterring OFF
GPU_BEAM_S  	: OFF
GPU_PFB  	: OFF
GPU_PFB_TAPS  	: 16
GPU_BEAM_BIT  	: 16
GPU_VLT_BIT  	: 8
GPU_ENV  	: RELEASED
--------------------------------
# GWB GAC configuration is as follows : 
# BEAM-1:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 E03 S01 S02 W01 W02 Total=17
# BEAM-1:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 E03 S01 S02 W01 W02 Total=17
# BEAM-2:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 E03 S01 S02 W01 W02 Total=17
# BEAM-2:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 E03 S01 S02 W01 W02 Total=17

12:00 : Started command file.

12:06:49 : Started scan on 1822-096 for ~ 1.96852 min.
12:09:47 : Started scan on 1822-096 for ~ 1.96852 min.
12:12:43 : Started scan on J1809-1943 for ~ 2.86331 min.
12:17:23 : Started scan on J1809-1943 for ~ 0.805306 min.
12:19:14 : Started scan on J1809-1943 for ~ 15.3008 min.
12:35:21 : Started scan on J1809-1943 for ~ 1.78957 min.


Note for observer : 

1) The beam mode switching you have mentioned requires restart of corr
correlator so it took time.

2) There was no space in GWBH7 disks which you have mentioned

3) 3C48 was not up.... so we took 1822-096 for on and off.


12:42:33 : Started scan on J1809-1943 for ~ 0 min.
12:46:03 : Started scan on 1822-096 for ~ 2.14748 min.
12:49:10 : Started scan on 1822-096 for ~ 1.96852 min.
12:52:05 : Started scan on J1809-1943 for ~ 15.3903 min.
13:08:29 : Started scan on B1822-09 for ~ 1.87905 min.
13:19:21 : Started scan on 1822-096 for ~ 1.96852 min.
13:22:19 : Started scan on 1822-096 for ~ 1.61061 min.
13:24:10 : Started scan on 1822-096 for ~ 1.34218 min.
13:26:16 : Started scan on 1822-096OFF for ~ 1.34218 min.
13:30 : Closed observation session.