ASTROSAT CZTI

Data Quality Report

Orbit 33569

Creation date: 2024-06-27T20:50:15.421946
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/AS1A11_060T01_9000004808_33569cztM0_level2.evt modeM0/AS1A11_060T01_9000004808_33569cztM0_level2_quad_clean.evt
Size (bytes)539,127,36063,673,920
Size514.2 MB 60.7 MB
Events in quadrant A2,703,882403,056
Events in quadrant B3,757,383406,020
Events in quadrant C4,874,920382,545
Events in quadrant D4,641,003373,122

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0111083
B0142832
C0184372
D0172652

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0350
B0350
C0350
D0360

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5178390.753187%
B51783837.396678%
C51784238.169177%
D51781883.630745%

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 7302 5179 26 26 0.36% 0.50%
B 7302 5179 287 287 3.93% 5.54%
C 7302 5179 377 377 5.16% 7.28%
D 7302 5179 164 164 2.25% 3.17%

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 15 169 202570 1580.42 645 634 127.8
A 13 254 9600 70.17 645 634 127.8
A 3 137 6074 42.58 645 634 127.8
B 5 172 1141965 9462.67 632 616 120.6
B 4 251 45065 368.52 632 616 120.6
B 4 171 31972 259.97 632 616 120.6
C 3 233 1077672 7556.94 622 629 142.5
C 14 254 878413 6158.86 622 629 142.5
C 15 214 217007 1518.19 622 629 142.5
D 8 195 1454776 9585.44 623 608 151.7
D 13 249 405973 2672.04 623 608 151.7
D 2 250 220234 1447.71 623 608 151.7

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