ASTROSAT CZTI

Data Quality Report

Orbit 13693

Creation date: 2024-06-27T16:44:38.074518
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/AS1G08_070T01_9000002028_13693cztM0_level2.evt modeM0/AS1G08_070T01_9000002028_13693cztM0_level2_quad_clean.evt
Size (bytes)557,412,480102,188,160
Size531.6 MB 97.5 MB
Events in quadrant A3,373,637681,940
Events in quadrant B4,616,612687,835
Events in quadrant C3,424,710656,851
Events in quadrant D5,029,328617,904

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137173
B0174692
C0139402
D0193392

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6453791.224237%
B64536179.561444%
C6453580.898807%
D64542253.486210%

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 7724 6455 0 0 0.00% 0.00%
B 7724 6455 430 430 5.57% 6.66%
C 7724 6455 0 0 0.00% 0.00%
D 7725 6456 130 130 1.68% 2.01%

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 69 11942 63.15 871 856 175.5
A 1 162 8542 43.79 871 856 175.5
A 0 226 7753 39.29 871 856 175.5
B 3 64 892597 5636.82 849 833 158.2
B 8 250 267892 1688.07 849 833 158.2
B 0 219 93333 584.69 849 833 158.2
C 3 233 147508 758.31 840 846 193.4
C 13 61 5944 26.36 840 846 193.4
C 14 234 3179 12.06 840 846 193.4
D 5 222 1251834 5769.79 825 813 216.8
D 13 122 315375 1450.78 825 813 216.8
D 8 195 186117 854.63 825 813 216.8

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