ASTROSAT CZTI

Data Quality Report

Orbit 07039

Creation date: 2024-06-27T15:14:48.564584
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/AS1G06_029T01_9000000964_07039cztM0_level2.evt modeM0/AS1G06_029T01_9000000964_07039cztM0_level2_quad_clean.evt
Size (bytes)560,033,280107,602,560
Size534.1 MB 102.6 MB
Events in quadrant A3,574,232699,324
Events in quadrant B4,060,339695,771
Events in quadrant C3,511,204700,985
Events in quadrant D5,314,352648,933

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155312
B0166661
C0154871
D0204771

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73802212.994580%
B73803394.593496%
C73801141.544715%
D73804496.084011%

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 7475 7382 0 0 0.00% 0.00%
B 7475 7382 88 88 1.18% 1.19%
C 7475 7382 0 0 0.00% 0.00%
D 7475 7382 271 271 3.63% 3.67%

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 15 234 17802 88.85 919 900 190.2
A 13 248 14455 71.25 919 900 190.2
A 0 226 8924 42.18 919 900 190.2
B 4 80 180722 1013.9 915 895 177.4
B 0 214 145748 816.71 915 895 177.4
B 0 228 82571 460.5 915 895 177.4
C 1 16 10339 44.89 894 903 210.2
C 13 61 7003 29.02 894 903 210.2
C 12 4 5412 21.45 894 903 210.2
D 12 233 878182 3997.35 884 858 219.5
D 2 216 642167 2922.0 884 858 219.5
D 8 195 313598 1424.94 884 858 219.5

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