ASTROSAT CZTI

Data Quality Report

Orbit 53214

Creation date: 2025-07-31T12:33:22.578421
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_53214cztM0_level2.fits modeM0/AS1C09_011T06_9000006490_53214cztM0_level2_quad_clean.evt
Size (bytes)1,011,142,08086,575,680
Size964.3 MB 82.6 MB
Events in quadrant A3,888,988687,568
Events in quadrant B3,681,052744,170
Events in quadrant C15,942,157244,046
Events in quadrant D13,331,140417,578

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0174150
B0166110
C0525210
D04484310

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75831542.030858%
B7583851.120928%
C7583500666.016089%
D7581293538.715209%

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 7583 7583 134 134 1.77% 1.77%
B 7583 7583 52 52 0.69% 0.69%
C 7583 7583 4848 4848 63.93% 63.93%
D 7583 7583 3131 3131 41.29% 41.29%

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 3 62 613373 3226.58 762 743 189.9
A 15 174 79453 414.55 762 743 189.9
A 0 8 68527 357.0 762 743 189.9
B 2 249 207687 1269.22 759 734 163.1
B 4 81 88175 536.27 759 734 163.1
B 10 28 48923 295.54 759 734 163.1
C 1 241 4234909 34169.64 446 443 123.9
C 15 198 3847550 31043.88 446 443 123.9
C 15 165 3146818 25389.38 446 443 123.9
D 15 125 8549311 46743.04 632 605 182.9
D 2 37 1270442 6943.28 632 605 182.9
D 0 18 261642 1427.31 632 605 182.9

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