ASTROSAT CZTI

Data Quality Report

Orbit 53207

Creation date: 2025-07-30T05:05:14.169149
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/AS1C09_011T06_9000006490_53207cztM0_level2.fits modeM0/AS1C09_011T06_9000006490_53207cztM0_level2_quad_clean.evt
Size (bytes)763,634,88084,648,960
Size728.3 MB 80.7 MB
Events in quadrant A3,921,783625,434
Events in quadrant B3,218,342683,405
Events in quadrant C7,379,242508,070
Events in quadrant D13,250,857297,918

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163513
B0142802
C0263822
D0438242

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64222734.251012%
B6422671.043289%
C6422133420.772345%
D6422345153.737154%

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 7557 6423 217 217 2.87% 3.38%
B 7557 6423 20 20 0.26% 0.31%
C 7557 6423 1223 1223 16.18% 19.04%
D 7557 6423 3784 3784 50.07% 58.91%

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 8 584233 3446.35 669 651 169.3
A 15 174 288973 1702.69 669 651 169.3
A 3 62 134370 789.68 669 651 169.3
B 10 247 142064 986.99 679 656 143.3
B 4 81 116283 807.04 679 656 143.3
B 0 213 74839 517.78 679 656 143.3
C 15 165 2707352 16078.95 611 605 168.3
C 15 224 985107 5848.26 611 605 168.3
C 4 5 481191 2854.83 611 605 168.3
D 15 125 9541993 63407.66 508 482 150.5
D 2 62 420320 2790.01 508 482 150.5
D 3 12 366502 2432.37 508 482 150.5

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