GTAC Observation Log

1. Date : 29/10/2022
2. Observation Sr. No. : 14676
3. Observer : Gulay Gurkan, Kamlesh Rajpurohit, Aritra Basu, Matthias Hoeft
4. Observer\'s Email : gulay.gurkan.g@gmail.com, kamlesh.rajpurohit@unibo.it, abasu@tls-tautenburg.de, hoeft@tls-tautenburg.de
5. Project Name : Unveiling the spectacular off-centre cluster merger AC114 with uGMRT
6. Project Code : 43_006
7. Operator(s) : Sachin
8. Command File : /odisk/gtac/cmd
9. LTA File : /gsbifrdata1/28oct/43_006_28oct2022_gsb.lta.3, /gsbifrdata1/28oct/43_006_28oct2022_gsb.lta.2, /gsbifrdata1/28oct/43_006_28oct2022_gsb.lta.1, /gsbifrdata1/28oct/43_006_28oct2022_gsb.lta, /gwbifrdata1/28oct/43_006_28oct2022_gwb.lta.3, /gwbifrdata1/28oct/43_006_28oct2022_gwb.lta.2, /gwbifrdata1/28oct/43_006_28oct2022_gwb.lta.1, /gwbifrdata1/28oct/43_006_28oct2022_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/TGC
18. GSB Fstop : ON
19. GAIN EQ : ON
20. Stokes : Full_Stokes
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 : 16.1061 Sec
31. No of Antennas Working(Fringing) at the beginning :27

32. Name of Non-Working Antennas (with reason for each) :
C03 : Mechanical Work.
E06 : Servo problem.
W06 : FE problem.

33. Note for Backup :

34. Start and End Time of Obs.(IST): 28 Oct 2022 18:00:00 - 29 Oct 2022 00:00:00

35. ONLINE Machine : TGC

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

37. RFI Status :

38. Comments (During Observations) :

------------GWB Setting---------
GPU_MODE  	: Realtime
GPU_LTA  	: 4
GPU_ACQ_BW  	: 200.0000
GPU_FINAL_BW  	: 200
GPU_EDGE_FRQ  	: 0
GPU_CHAN_MAX  	: 4096
GPU_CHAN_NUM  	: 0:4095:1
GPU_STOKES  	: Full_Stokes
GPU_SIDEBAND  	: 1 1
GPU_RF1  	: 500  500
GPU_DDCLO1  	: 0  0
GPU_SB1  	: 1 1
GCODE1  	: SUBA1
GPU_CNTRL  	: ONLINE/TGC
GPU_FSTOP  	: ON
GPU_BEAM_1  	: OFF
GPU_BEAM_2  	: OFF
GPU_BEAM_3  	: OFF
GPU_BEAM_4  	: OFF
GPU_BM_INT  	: 8
GPU_GAINEQ  	: ON
GPU_TPA  	: From online/TGC tpa
GPU_BITS  	: 8 Bits
GPU_FILRFI  	: RFI Filterring OFF
GPU_BEAM_S  	: OFF
GPU_PFB  	: ON
GPU_PFB_TAPS  	: 4
GPU_BEAM_BIT  	: 16
GPU_VLT_BIT  	: 8
GPU_WALSH  	: OFF
GPU_ENV  	: RELEASED
--------------------------------
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18:27:47 : Started scan on 3C48 for ~ 0.268435 min.
18:34:58 : Started scan on 3C48 for ~ 4.74236 min.

It is observed that fringe was not stable.

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18:43:47 : Started scan on 3C48 for ~ 6.53192 min.
18:59:56 : Started scan on 2219-279 for ~ 1.029 min.
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Later observed that TGC was not taking commands.

So restarted TGC AGN and started command file.

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19:00 : E06 started working.
19:08:51 : Started scan on 3C48 for ~ 8.32149 min.
19:22:17 : Started scan on 2219-279 for ~ 2.32644 min.
19:26:30 : Started scan on AC114 for ~ 45.3208 min.
20:13:18 : Started scan on AC114 for ~ 45.3208 min.
21:00:07 : Started scan on AC114 for ~ 45.3208 min.
21:46:55 : Started scan on AC114 for ~ 45.3208 min.
22:33:43 : Started scan on AC114 for ~ 45.2761 min.
23:20:31 : Started scan on AC114 for ~ 19.9537 min.
23:49:01 : Started scan on 3C48 for ~ 13.1086 min.
00:00:00 : Stopped scan and observing session over.
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