ASTROSAT CZTI

Data Quality Report

Orbit 53584

Creation date: 2025-08-24T13:23:15.516906
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/AS1A14_004T05_9000006502_53584cztM0_level2.fits modeM0/AS1A14_004T05_9000006502_53584cztM0_level2_quad_clean.evt
Size (bytes)730,163,52083,943,360
Size696.3 MB 80.1 MB
Events in quadrant A6,026,722571,145
Events in quadrant B7,145,445600,733
Events in quadrant C5,658,266572,516
Events in quadrant D7,690,956341,207

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0223002
B0257422
C0213366
D0274812

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A653895914.668094%
B6538119818.323646%
C65376289.606853%
D6537273241.792871%

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 7608 6538 702 702 9.23% 10.74%
B 7608 6538 708 708 9.31% 10.83%
C 7607 6538 472 472 6.20% 7.22%
D 7607 6537 1436 1436 18.88% 21.97%

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 1433857 8456.4 687 669 169.5
A 15 174 1381282 8146.19 687 669 169.5
A 0 8 191000 1123.03 687 669 169.5
B 4 206 3328953 22415.84 684 660 148.5
B 10 28 458546 3083.83 684 660 148.5
B 2 249 162011 1086.69 684 660 148.5
C 13 3 1401830 7474.08 683 679 187.5
C 15 224 746905 3980.55 683 679 187.5
C 10 22 207063 1100.9 683 679 187.5
D 8 176 4642149 35485.26 454 434 130.8
D 12 1 570771 4360.15 454 434 130.8
D 12 3 244647 1866.97 454 434 130.8

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