ASTROSAT CZTI

Data Quality Report

Orbit 29576

Creation date: 2024-06-27T20:05:38.260537
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/AS1C05_019T01_9000004264_29576cztM0_level2.evt modeM0/AS1C05_019T01_9000004264_29576cztM0_level2_quad_clean.evt
Size (bytes)469,062,72086,690,880
Size447.3 MB 82.7 MB
Events in quadrant A2,542,418570,354
Events in quadrant B3,361,691583,194
Events in quadrant C2,966,725546,292
Events in quadrant D4,957,614536,861

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112661
B0136171
C0124191
D0187041

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5546140.252434%
B55471432.577970%
C554764011.537768%
D55474437.986299%

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 6446 5547 0 0 0.00% 0.00%
B 6447 5548 81 81 1.26% 1.46%
C 6447 5548 0 0 0.00% 0.00%
D 6447 5548 338 338 5.24% 6.09%

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 13 254 9790 69.66 655 642 131.3
A 0 13 9633 68.47 655 642 131.3
A 3 137 6291 43.02 655 642 131.3
B 0 189 755082 6152.86 652 635 122.6
B 0 230 18155 142.88 652 635 122.6
B 0 190 16428 128.8 652 635 122.6
C 14 238 292740 2120.04 598 602 137.8
C 14 254 267213 1934.79 598 602 137.8
C 3 233 31874 226.94 598 602 137.8
D 12 33 1484588 10019.74 620 602 148.1
D 13 104 739506 4989.01 620 602 148.1
D 8 195 282893 1906.0 620 602 148.1

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