ASTROSAT CZTI

Data Quality Report

Orbit 03743

Creation date: 2024-06-27T14:33:07.280721
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/AS1G05_248T01_9000000486_03743cztM0_level2.evt modeM0/AS1G05_248T01_9000000486_03743cztM0_level2_quad_clean.evt
Size (bytes)749,085,120104,872,320
Size714.4 MB 100.0 MB
Events in quadrant A6,359,286611,779
Events in quadrant B6,015,732624,573
Events in quadrant C4,526,147621,304
Events in quadrant D5,086,654603,665

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02080
B02080
C02080
D02080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0259262
B0248051
C0209341
D0228281

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A103184003.876720%
B103182592.510176%
C10318240.232603%
D10318740.717193%

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 11923 10320 234 234 1.96% 2.27%
B 11923 10320 127 127 1.07% 1.23%
C 11923 10320 0 0 0.00% 0.00%
D 11923 10320 50 50 0.42% 0.48%

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 13 251 867264 3626.75 1162 1136 238.8
A 0 118 585295 2446.06 1162 1136 238.8
A 8 15 306936 1280.48 1162 1136 238.8
B 0 173 1077856 4691.81 1187 1159 229.5
B 14 167 122941 530.68 1187 1159 229.5
B 15 204 85347 366.86 1187 1159 229.5
C 8 128 17644 61.6 1144 1148 267.8
C 7 222 16701 58.08 1144 1148 267.8
C 13 61 9623 31.65 1144 1148 267.8
D 10 246 168263 608.82 1138 1105 274.6
D 2 232 151779 548.78 1138 1105 274.6
D 13 25 129288 466.86 1138 1105 274.6

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
Veto Counter