ASTROSAT CZTI

Data Quality Report

Orbit 29443

Creation date: 2024-06-27T20:02:12.228907
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/AS1A10_045T08_9000004208_29443cztM0_level2.evt modeM0/AS1A10_045T08_9000004208_29443cztM0_level2_quad_clean.evt
Size (bytes)88,263,36026,150,400
Size84.2 MB 24.9 MB
Events in quadrant A618,905179,709
Events in quadrant B619,956183,747
Events in quadrant C615,996172,570
Events in quadrant D738,026169,176

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05232
B05127
C05432
D05228

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A052172802
B052862844
C059163512
D076424755

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A088
B088
C099
D0109

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A113430.264550%
B114000.000000%
C113750.439754%
D1134141.234568%

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 3697 1187 0 0 0.00% 0.00%
B 3674 1185 0 0 0.00% 0.00%
C 1209 1181 0 0 0.00% 0.00%
D 1208 1172 6 6 0.50% 0.51%

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 0 13 3319 94.98 158 156 33.3
A 1 113 2952 83.96 158 156 33.3
A 13 254 1868 51.41 158 156 33.3
B 0 183 9414 294.37 154 151 31.5
B 12 111 3333 101.12 154 151 31.5
B 11 111 3130 94.67 154 151 31.5
C 14 238 24012 669.89 148 149 35.6
C 3 233 11627 322.21 148 149 35.6
C 2 114 2459 64.85 148 149 35.6
D 7 80 54549 1465.88 151 147 37.1
D 13 104 38631 1036.97 151 147 37.1
D 13 153 29412 788.56 151 147 37.1

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