ASTROSAT CZTI

Data Quality Report

Orbit 31713

Creation date: 2024-06-27T20:31:49.309951
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/AS1T04_034T01_9000004632_31713cztM0_level2.evt modeM0/AS1T04_034T01_9000004632_31713cztM0_level2_quad_clean.evt
Size (bytes)660,850,56066,643,200
Size630.2 MB 63.6 MB
Events in quadrant A4,103,435414,835
Events in quadrant B6,906,824357,166
Events in quadrant C4,360,779402,422
Events in quadrant D4,213,380399,782

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0164112
B0248772
C0172442
D0166882

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63502323.653543%
B6350128620.251969%
C63503675.779528%
D6350921.448819%

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 7610 6351 68 68 0.89% 1.07%
B 7610 6351 536 536 7.04% 8.44%
C 7610 6351 134 134 1.76% 2.11%
D 7610 6351 12 12 0.16% 0.19%

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 13 546175 2991.87 918 902 182.3
A 13 254 11862 60.14 918 902 182.3
A 12 96 9019 44.54 918 902 182.3
B 4 80 2167817 14733.57 792 775 147.1
B 6 159 1518949 10321.96 792 775 147.1
B 0 229 54853 367.67 792 775 147.1
C 0 10 721647 3613.92 866 877 199.4
C 14 238 141002 702.58 866 877 199.4
C 0 207 46397 228.24 866 877 199.4
D 8 195 715793 3393.04 903 884 210.7
D 2 250 34095 157.62 903 884 210.7
D 13 249 29386 135.27 903 884 210.7

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