ASTROSAT CZTI

Data Quality Report

Orbit 09397

Creation date: 2024-06-27T15:45:31.422011
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G07_069T01_9000001332_09397cztM0_level2.evt modeM0/AS1G07_069T01_9000001332_09397cztM0_level2_quad_clean.evt
Size (bytes)471,021,12093,951,360
Size449.2 MB 89.6 MB
Events in quadrant A3,887,345592,839
Events in quadrant B3,224,304604,016
Events in quadrant C3,003,950606,009
Events in quadrant D3,696,481578,223

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016954863
B014901688
C014292641
D016603767

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01422
B01419
C01424
D01426

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0141
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66361392.094635%
B6661390.585498%
C6665180.270068%
D66441472.212523%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 8333 6932 35 35 0.42% 0.50%
B 8333 6945 6 6 0.07% 0.09%
C 8333 6941 0 0 0.00% 0.00%
D 8333 6942 118 118 1.42% 1.70%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 14 111 472690 2971.51 768 751 158.8
A 8 5 418108 2627.84 768 751 158.8
A 4 2 16980 102.18 768 751 158.8
B 8 234 106924 711.82 780 758 149.1
B 0 214 49617 327.59 780 758 149.1
B 12 111 16538 105.8 780 758 149.1
C 13 61 5678 27.48 769 773 178.5
C 14 67 2763 11.15 769 773 178.5
C 1 3 2274 8.41 769 773 178.5
D 1 52 569953 3077.99 752 731 184.9
D 13 104 80704 432.44 752 731 184.9
D 7 71 59633 318.5 752 731 184.9

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter