ASTROSAT CZTI

Data Quality Report

Orbit 32158

Creation date: 2024-06-27T20:37:07.776522
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/AS1A09_131T01_9000004690_32158cztM0_level2.evt modeM0/AS1A09_131T01_9000004690_32158cztM0_level2_quad_clean.evt
Size (bytes)573,505,92082,157,760
Size546.9 MB 78.4 MB
Events in quadrant A3,071,160517,171
Events in quadrant B5,494,073511,829
Events in quadrant C3,232,012511,833
Events in quadrant D5,137,175499,409

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133201
B0209491
C0136121
D0196461

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6417290.451925%
B64182644.113431%
C64181231.916485%
D64182313.599252%

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 7312 6418 0 0 0.00% 0.00%
B 7313 6419 136 136 1.86% 2.12%
C 7313 6419 18 18 0.25% 0.28%
D 7313 6419 161 161 2.20% 2.51%

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 12 189 47031 297.18 779 762 155.7
A 13 6 17056 104.66 779 762 155.7
A 13 254 11312 67.76 779 762 155.7
B 6 159 1879698 13001.5 758 738 144.5
B 5 172 466305 3221.5 758 738 144.5
B 0 190 49585 338.0 758 738 144.5
C 14 238 122865 691.97 751 754 176.5
C 0 10 114776 646.13 751 754 176.5
C 3 233 17273 93.61 751 754 176.5
D 8 195 1556232 8737.33 750 728 178.0
D 12 233 529795 2971.79 750 728 178.0
D 2 120 102152 569.7 750 728 178.0

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