ASTROSAT CZTI

Data Quality Report

Orbit 29808

Creation date: 2024-06-27T20:07:57.393637
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/AS1T03_291T01_9000004278_29808cztM0_level2.evt modeM0/AS1T03_291T01_9000004278_29808cztM0_level2_quad_clean.evt
Size (bytes)771,180,480111,234,240
Size735.5 MB 106.1 MB
Events in quadrant A3,676,842758,879
Events in quadrant B6,963,831742,392
Events in quadrant C3,784,288717,497
Events in quadrant D8,411,950615,479

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159262
B0261142
C0160102
D0300562

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7674610.794892%
B76735887.663235%
C76731702.215561%
D7673153520.005213%

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 7774 7675 0 0 0.00% 0.00%
B 7773 7674 228 228 2.93% 2.97%
C 7773 7674 0 0 0.00% 0.00%
D 7773 7674 1430 1430 18.40% 18.63%

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 14939 73.12 952 930 191.6
A 3 137 9654 45.53 952 930 191.6
A 0 226 7982 36.81 952 930 191.6
B 6 159 2233697 12461.26 936 912 179.2
B 0 189 810495 4518.31 936 912 179.2
B 0 229 141744 785.99 936 912 179.2
C 14 238 160358 746.46 912 914 213.6
C 14 254 23830 107.28 912 914 213.6
C 2 114 18778 83.63 912 914 213.6
D 7 238 4343283 21989.25 826 801 197.5
D 8 195 524695 2652.87 826 801 197.5
D 2 250 134265 675.83 826 801 197.5

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