ASTROSAT CZTI

Data Quality Report

Orbit 44034

Creation date: 2024-06-27T22:58:32.993874
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_025T01_9000005936_44034cztM0_level2.fits modeM0/AS1A13_025T01_9000005936_44034cztM0_level2_quad_clean.evt
Size (bytes)475,608,960104,567,040
Size453.6 MB 99.7 MB
Events in quadrant A6,104,953652,669
Events in quadrant B3,150,505725,965
Events in quadrant C3,411,089695,111
Events in quadrant D4,430,378635,719

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0228341
B0138291
C0143561
D0176101

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A655069010.534351%
B6550410.625954%
C6550711.083969%
D65511902.900321%

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 7445 6551 299 299 4.02% 4.56%
B 7445 6551 1 1 0.01% 0.02%
C 7445 6551 22 22 0.30% 0.34%
D 7446 6552 139 139 1.87% 2.12%

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 1169797 7935.77 707 691 147.3
A 15 223 1131872 7678.34 707 691 147.3
A 14 238 791404 5367.28 707 691 147.3
B 0 200 78894 539.52 732 710 144.9
B 0 213 71924 491.42 732 710 144.9
B 0 245 26346 176.9 732 710 144.9
C 3 233 277484 1629.26 722 727 169.9
C 14 254 182950 1072.74 722 727 169.9
C 5 250 73026 425.62 722 727 169.9
D 1 52 554966 3060.92 719 699 181.1
D 5 235 273129 1504.48 719 699 181.1
D 2 249 174238 958.36 719 699 181.1

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