ASTROSAT CZTI

Data Quality Report

Orbit 53663

Creation date: 2025-08-29T21:48:29.935847
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_022T05_9000006504_53663cztM0_level2.fits modeM0/AS1A14_022T05_9000006504_53663cztM0_level2_quad_clean.evt
Size (bytes)1,058,149,44074,047,680
Size1009.1 MB 70.6 MB
Events in quadrant A12,896,552344,399
Events in quadrant B3,863,733711,766
Events in quadrant C16,215,697134,132
Events in quadrant D5,656,367567,088

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0431118
B0162470
C0528970
D0215180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6948369853.223949%
B69481672.403569%
C6949564381.205929%
D69495397.756512%

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 6948 6948 3213 3213 46.24% 46.24%
B 6948 6948 37 37 0.53% 0.53%
C 6949 6949 5366 5366 77.22% 77.22%
D 6949 6949 438 438 6.30% 6.30%

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 63 8163209 54867.68 594 578 148.8
A 3 78 887439 5961.31 594 578 148.8
A 14 254 606449 4072.55 594 578 148.8
B 7 0 181191 1089.05 765 736 165.7
B 5 185 150891 906.19 765 736 165.7
B 5 172 90745 543.2 765 736 165.7
C 1 241 11093483 105386.05 376 373 105.3
C 15 224 2157115 20489.34 376 373 105.3
C 9 38 620967 5895.73 376 373 105.3
D 10 172 1160863 5661.21 719 687 204.9
D 12 16 590664 2878.86 719 687 204.9
D 2 153 167219 812.61 719 687 204.9

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