ASTROSAT CZTI

Data Quality Report

Orbit 13767

Creation date: 2024-06-27T16:45:49.605875
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/AS1G08_062T01_9000002038_13767cztM0_level2.evt modeM0/AS1G08_062T01_9000002038_13767cztM0_level2_quad_clean.evt
Size (bytes)522,607,68083,373,120
Size498.4 MB 79.5 MB
Events in quadrant A3,060,725526,733
Events in quadrant B3,034,212525,537
Events in quadrant C5,110,145540,780
Events in quadrant D4,212,402509,517

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130132
B0129581
C0192851
D0165341

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6045901.488834%
B6045911.505376%
C604566611.017370%
D60452333.854425%

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 7016 6047 26 26 0.37% 0.43%
B 7016 6047 4 4 0.06% 0.07%
C 7016 6047 486 486 6.93% 8.04%
D 7016 6047 120 120 1.71% 1.98%

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 9 143 142613 943.88 741 727 150.3
A 0 23 43335 283.45 741 727 150.3
A 1 162 11538 71.92 741 727 150.3
B 0 219 103294 727.44 736 719 141.0
B 4 80 18777 128.06 736 719 141.0
B 12 111 15679 106.09 736 719 141.0
C 9 236 2283258 14092.69 696 702 162.0
C 3 233 69120 422.42 696 702 162.0
C 14 234 44859 272.63 696 702 162.0
D 1 52 1154381 6650.82 706 687 173.5
D 5 222 171741 986.09 706 687 173.5
D 10 157 123072 705.53 706 687 173.5

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