ASTROSAT CZTI

Data Quality Report

Orbit 43723

Creation date: 2024-06-27T22:55:01.447459
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/AS1A13_003T01_9000005902_43723cztM0_level2.fits modeM0/AS1A13_003T01_9000005902_43723cztM0_level2_quad_clean.evt
Size (bytes)665,913,600110,508,480
Size635.1 MB 105.4 MB
Events in quadrant A7,972,558750,179
Events in quadrant B4,657,297787,711
Events in quadrant C6,117,613640,664
Events in quadrant D5,362,852681,601

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0285821
B0185801
C0228621
D0206661

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69725788.290304%
B69723444.934022%
C6972130418.703385%
D69724085.851979%

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 7612 6973 235 235 3.09% 3.37%
B 7612 6973 146 146 1.92% 2.09%
C 7612 6973 743 743 9.76% 10.66%
D 7612 6973 252 252 3.31% 3.61%

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 15 222 3121747 19097.04 794 779 163.4
A 10 83 861649 5267.62 794 779 163.4
A 14 63 571839 3494.29 794 779 163.4
B 4 171 616697 3932.23 796 772 156.6
B 5 235 546061 3481.27 796 772 156.6
B 0 199 169397 1076.55 796 772 156.6
C 15 157 2793195 16394.03 718 721 170.3
C 3 233 195040 1140.81 718 721 170.3
C 15 158 149518 873.56 718 721 170.3
D 13 171 475986 2383.06 785 760 199.4
D 5 235 450581 2255.67 785 760 199.4
D 1 52 224454 1121.73 785 760 199.4

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