ASTROSAT CZTI

Data Quality Report

Orbit 32037

Creation date: 2024-06-27T20:35:42.788707
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/AS1T04_046T01_9000004680_32037cztM0_level2.evt modeM0/AS1T04_046T01_9000004680_32037cztM0_level2_quad_clean.evt
Size (bytes)660,205,440110,119,680
Size629.6 MB 105.0 MB
Events in quadrant A3,558,579728,845
Events in quadrant B6,041,948712,201
Events in quadrant C4,794,629694,125
Events in quadrant D5,105,317691,271

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151421
B0231851
C0188831
D0199351

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73001261.726027%
B73013374.615806%
C73013925.369128%
D73013735.108889%

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 7600 7300 0 0 0.00% 0.00%
B 7601 7301 82 82 1.08% 1.12%
C 7601 7301 155 155 2.04% 2.12%
D 7601 7301 240 240 3.16% 3.29%

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 6 14723 75.34 916 895 183.5
A 13 254 13846 70.56 916 895 183.5
A 3 137 9053 44.44 916 895 183.5
B 6 159 2001119 11841.92 889 868 168.9
B 5 172 187859 1107.03 889 868 168.9
B 0 190 166520 980.69 889 868 168.9
C 3 233 977689 4890.75 855 858 199.7
C 0 10 276680 1380.97 855 858 199.7
C 14 238 138856 690.92 855 858 199.7
D 8 195 690007 3313.65 875 852 208.0
D 10 199 424729 2038.12 875 852 208.0
D 2 250 355100 1703.32 875 852 208.0

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