ASTROSAT CZTI

Data Quality Report

Orbit 44233

Creation date: 2024-06-27T23:00:48.193013
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_074T01_9000005974_44233cztM0_level2.fits modeM0/AS1A13_074T01_9000005974_44233cztM0_level2_quad_clean.evt
Size (bytes)572,780,160108,590,400
Size546.2 MB 103.6 MB
Events in quadrant A7,495,432677,302
Events in quadrant B3,953,274781,164
Events in quadrant C4,327,719668,934
Events in quadrant D4,865,212657,566

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0278080
B0166210
C0181990
D0195130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A722399613.789284%
B7223771.066039%
C722473410.160576%
D72233635.025613%

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 7223 7223 843 843 11.67% 11.67%
B 7223 7223 34 34 0.47% 0.47%
C 7224 7224 344 344 4.76% 4.76%
D 7223 7223 301 301 4.17% 4.17%

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 15 223 3031558 18996.16 765 749 159.5
A 10 83 1422839 8913.21 765 749 159.5
A 7 3 40966 252.07 765 749 159.5
B 0 219 174917 1087.56 798 773 160.1
B 5 255 161963 1006.66 798 773 160.1
B 0 155 129932 806.62 798 773 160.1
C 14 254 1420442 8308.87 721 726 170.9
C 4 254 46808 269.69 721 726 170.9
C 3 233 28875 164.74 721 726 170.9
D 13 249 1000688 5054.74 769 742 197.8
D 1 52 345631 1743.42 769 742 197.8
D 14 210 115029 577.72 769 742 197.8

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