ASTROSAT CZTI

Data Quality Report

Orbit 19719

Creation date: 2024-06-27T18:05:59.288040
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/AS1A05_013T01_9000002944_19719cztM0_level2.evt modeM0/AS1A05_013T01_9000002944_19719cztM0_level2_quad_clean.evt
Size (bytes)580,849,92084,628,800
Size553.9 MB 80.7 MB
Events in quadrant A3,879,178511,809
Events in quadrant B3,893,397519,520
Events in quadrant C5,478,842494,252
Events in quadrant D3,806,769491,143

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166042
B0164952
C0214692
D0166932

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78482473.147299%
B78482663.389399%
C78486718.549949%
D78482072.637615%

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 7993 7849 0 0 0.00% 0.00%
B 7993 7849 6 6 0.08% 0.08%
C 7993 7848 197 197 2.46% 2.51%
D 7993 7848 6 6 0.08% 0.08%

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 10 1 173558 885.94 961 940 194.8
A 0 226 8441 38.5 961 940 194.8
A 3 137 8085 36.67 961 940 194.8
B 15 201 24120 125.78 958 931 184.4
B 12 111 22841 118.84 958 931 184.4
B 4 171 22473 116.84 958 931 184.4
C 3 233 1763387 8330.07 899 904 211.6
C 14 238 140186 658.29 899 904 211.6
C 7 247 60563 281.97 899 904 211.6
D 1 52 159221 691.13 942 913 229.1
D 2 234 31389 133.05 942 913 229.1
D 12 218 29275 123.82 942 913 229.1

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