ASTROSAT CZTI

Data Quality Report

Orbit 32219

Creation date: 2024-06-27T20:37:43.384996
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/AS1A10_057T01_9000004692_32219cztM0_level2.evt modeM0/AS1A10_057T01_9000004692_32219cztM0_level2_quad_clean.evt
Size (bytes)606,942,72076,792,320
Size578.8 MB 73.2 MB
Events in quadrant A3,060,962488,734
Events in quadrant B5,364,353483,287
Events in quadrant C3,687,605460,796
Events in quadrant D5,858,798469,798

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130242
B0205071
C0149321
D0216721

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6046440.727754%
B60462824.664241%
C6046130421.567979%
D60463676.070129%

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 7211 6047 0 0 0.00% 0.00%
B 7211 6047 90 90 1.25% 1.49%
C 7211 6047 3 3 0.04% 0.05%
D 7211 6047 159 159 2.20% 2.63%

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 14468 87.56 786 771 156.4
A 13 6 10413 61.64 786 771 156.4
A 15 174 7932 45.78 786 771 156.4
B 6 159 1821648 12407.4 773 755 146.8
B 5 172 306378 2082.49 773 755 146.8
B 0 190 92878 627.72 773 755 146.8
C 14 254 461563 2847.08 691 696 161.9
C 14 238 441861 2725.37 691 696 161.9
C 0 10 28919 174.35 691 696 161.9
D 8 195 2449365 13580.35 760 741 180.3
D 7 38 192275 1062.27 760 741 180.3
D 12 218 117555 647.86 760 741 180.3

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