ASTROSAT CZTI

Data Quality Report

Orbit 12723

Creation date: 2024-06-27T16:31:36.457660
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/AS1A04_130T04_9000001878_12723cztM0_level2.evt modeM0/AS1A04_130T04_9000001878_12723cztM0_level2_quad_clean.evt
Size (bytes)213,940,80029,917,440
Size204.0 MB 28.5 MB
Events in quadrant A2,012,182185,304
Events in quadrant B1,912,134178,939
Events in quadrant C1,198,310193,274
Events in quadrant D1,203,101186,848

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A074292
B070981
C049001
D049401

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A223035015.695067%
B223040218.026906%
C2230662.959641%
D2230662.959641%

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 3531 2233 148 148 4.19% 6.63%
B 3531 2233 200 200 5.66% 8.96%
C 3531 2233 0 0 0.00% 0.00%
D 3531 2233 3 3 0.08% 0.13%

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 15 239 831671 13348.23 299 292 62.3
A 12 189 12306 192.88 299 292 62.3
A 8 15 11521 180.28 299 292 62.3
B 4 239 715388 12594.98 288 281 56.8
B 3 64 36957 645.96 288 281 56.8
B 4 81 6317 106.31 288 281 56.8
C 15 208 2316 27.83 306 306 72.2
C 13 61 2155 25.6 306 306 72.2
C 14 234 2153 25.57 306 306 72.2
D 1 52 17536 232.65 307 300 74.1
D 2 234 7433 96.28 307 300 74.1
D 10 199 7152 92.49 307 300 74.1

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