ASTROSAT CZTI

Data Quality Report

Orbit 13404

Creation date: 2024-06-27T16:40:18.549889
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/AS1A04_103T01_9000001988_13404cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13404cztM0_level2_quad_clean.evt
Size (bytes)468,290,88095,592,960
Size446.6 MB 91.2 MB
Events in quadrant A3,040,778627,493
Events in quadrant B3,369,271644,641
Events in quadrant C3,086,554617,356
Events in quadrant D4,270,514578,472

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129603
B0139382
C0129712
D0170052

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6117530.866438%
B61171832.991663%
C6117350.572176%
D6117891.454962%

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 7398 6118 0 0 0.00% 0.00%
B 7398 6118 31 31 0.42% 0.51%
C 7398 6119 2 2 0.03% 0.03%
D 7398 6118 76 76 1.03% 1.24%

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 8907 51.22 787 774 158.8
A 0 226 7035 39.43 787 774 158.8
A 12 194 5979 32.78 787 774 158.8
B 3 64 206614 1395.9 787 767 147.5
B 4 142 61961 414.97 787 767 147.5
B 12 111 16631 107.58 787 767 147.5
C 14 220 67221 380.6 758 764 174.6
C 3 233 66742 377.86 758 764 174.6
C 13 61 5553 27.42 758 764 174.6
D 8 195 797278 4478.99 743 722 177.8
D 1 52 576379 3236.88 743 722 177.8
D 2 136 33963 186.91 743 722 177.8

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