GTAC Observation Log

1. Date : 03/06/2023
2. Observation Sr. No. : 15469
3. Observer : Mayank Narang, Manoj Puravankara, Himanshu Tyagi, Bihan Banerjee, Arun Surya, Prasanta Kumar Nayak
4. Observer\'s Email : mayankn1154@gmail.com, manoj.puravankara@tifr.res.in, tyagihimanshu027@gmail.com, banerjeebihan@gmail.com, arunsuryaoffice@gmail.com, nayakphy@gmail.com
5. Project Name : Investigating the origins of radio emission from Herbig Ae/Be stars
6. Project Code : 44_061
7. Operator(s) : Pramod
8. Command File : /data1/gtac/cmd/44_061/44_061_03Jun2023_1100_cmd.py
9. LTA File : /gsbifrdata1/03jun/44_061_03jun2023_b5_gsb.lta, /gwbifrdata/03jun/44_061_03jun2023_b5_gwb.lta
10. LogFlag File :  

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1409 MHz ,RF2 : 1409 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1460 MHz, ILO2 : 1460MHz , 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 : 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) : 1409 1409 1460 1460 51 51
30. Integration Time : 8.053 Sec
31. No of Antennas Working(Fringing) at the beginning :28

32. Name of Non-Working Antennas (with reason for each) :
W02 : Taken for mechanical work.
C05 : Feed jammed

33. Note for Backup :

34. Start and End Time of Obs.(IST): 03 Jun 2023 11:00:00 - 03 Jun 2023 14:00:00

35. ONLINE Machine : TGC

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

37. RFI Status :

38. Comments (During Observations) :
******************************************************************* 
Important Note for Observer:
The refurbishment work of the W02 antenna reflector surface is 
currently in progress. The refurbishment of the inner sectors 
will commence from 16th May 2023 onwards. Please note that this 
ongoing work may affect the sensitivity of the antenna and could 
also alter the primary beam pattern depending on the size of the
holes present on the surface. We advise exercising caution in 
using the antenna, particularly if your targets are extended or 
if you are using a wide field. 
******************************************************************* 
11:00 : Started set up.
11:17 : Started command file.
   /data1/gtac/cmd/44_061/44_061_03Jun2023_1100_cmd.py
13:15 : C05 released for observation.
14:20 : Stopped command file and observation session is over.