ASTROSAT CZTI

Data Quality Report

Orbit 32941

Creation date: 2024-06-27T20:43:41.955924
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/AS1C07_005T01_9000004748_32941cztM0_level2.evt modeM0/AS1C07_005T01_9000004748_32941cztM0_level2_quad_clean.evt
Size (bytes)623,635,200100,509,120
Size594.7 MB 95.9 MB
Events in quadrant A2,556,213719,223
Events in quadrant B4,435,490682,230
Events in quadrant C2,687,137709,301
Events in quadrant D8,832,799544,251

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112163
B0168862
C0118082
D0301502

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A554440.072150%
B554461511.093074%
C5544731.316739%
D5544195735.299423%

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 7247 5545 0 0 0.00% 0.00%
B 7247 5545 438 438 6.04% 7.90%
C 7247 5545 57 57 0.79% 1.03%
D 7247 5544 1736 1736 23.95% 31.31%

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 0 159 33544 249.81 647 634 131.7
A 13 254 10991 78.62 647 634 131.7
A 13 6 10887 77.83 647 634 131.7
B 5 200 998743 8440.02 619 603 118.3
B 5 172 671193 5670.34 619 603 118.3
B 0 189 105137 883.91 619 603 118.3
C 0 10 197427 1375.41 620 625 143.1
C 1 241 33040 226.54 620 625 143.1
C 14 67 28709 196.27 620 625 143.1
D 7 80 1726696 12812.43 520 506 134.7
D 2 250 1334465 9901.14 520 506 134.7
D 8 195 1277527 9478.53 520 506 134.7

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