ASTROSAT CZTI

Data Quality Report

Orbit 32429

Creation date: 2024-06-27T20:40:06.074583
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/AS1A09_108T02_9000004706_32429cztM0_level2.evt modeM0/AS1A09_108T02_9000004706_32429cztM0_level2_quad_clean.evt
Size (bytes)766,431,360116,107,200
Size730.9 MB 110.7 MB
Events in quadrant A3,801,433759,712
Events in quadrant B6,231,165780,599
Events in quadrant C7,922,779693,959
Events in quadrant D4,714,508724,085

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0167912
B0246881
C0290811
D0195401

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80171311.634028%
B80173784.714981%
C8017130716.302856%
D80171591.983286%

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 8337 8019 0 0 0.00% 0.00%
B 8337 8019 11 11 0.13% 0.14%
C 8337 8019 503 503 6.03% 6.27%
D 8337 8019 82 82 0.98% 1.02%

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 13423 62.75 983 961 198.6
A 3 137 10409 47.57 983 961 198.6
A 0 226 8170 36.3 983 961 198.6
B 6 159 2230056 11697.67 979 951 190.6
B 4 80 84618 439.06 979 951 190.6
B 0 190 32107 163.49 979 951 190.6
C 3 233 3895105 18051.73 914 920 215.7
C 14 238 150159 691.81 914 920 215.7
C 0 10 148911 686.02 914 920 215.7
D 8 195 660575 2917.21 950 925 226.1
D 1 47 187742 826.17 950 925 226.1
D 2 250 101547 444.99 950 925 226.1

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