ASTROSAT CZTI

Data Quality Report

Orbit 45013

Creation date: 2024-06-27T23:09:01.614122
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_020T01_9000006040_45013cztM0_level2.fits modeM0/AS1A13_020T01_9000006040_45013cztM0_level2_quad_clean.evt
Size (bytes)662,256,000104,567,040
Size631.6 MB 99.7 MB
Events in quadrant A6,174,384716,575
Events in quadrant B4,191,811754,715
Events in quadrant C3,400,382741,980
Events in quadrant D10,217,820476,715

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0232342
B0171081
C0149911
D0351301

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68414646.782634%
B68412603.800614%
C68411452.119573%
D6842232133.922830%

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 7571 6843 191 191 2.52% 2.79%
B 7571 6843 59 59 0.78% 0.86%
C 7571 6843 57 57 0.75% 0.83%
D 7572 6844 2020 2020 26.68% 29.51%

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 10 83 2543710 15551.07 788 770 163.5
A 13 248 505490 3086.56 788 770 163.5
A 0 243 32850 196.18 788 770 163.5
B 0 189 315971 2019.03 789 766 156.1
B 0 183 171263 1092.11 789 766 156.1
B 0 155 137300 874.56 789 766 156.1
C 12 2 267676 1457.18 780 784 183.2
C 15 208 55691 299.78 780 784 183.2
C 1 3 18580 97.16 780 784 183.2
D 13 187 2655694 16081.17 645 624 165.1
D 12 33 1277908 7736.23 645 624 165.1
D 1 52 915428 5540.77 645 624 165.1

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