ASTROSAT CZTI

Data Quality Report

Orbit 44086

Creation date: 2024-06-27T22:59:13.515508
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/AS1A13_012T01_9000005942_44086cztM0_level2.fits modeM0/AS1A13_012T01_9000005942_44086cztM0_level2_quad_clean.evt
Size (bytes)485,305,920121,452,480
Size462.8 MB 115.8 MB
Events in quadrant A5,077,673811,852
Events in quadrant B3,535,413843,341
Events in quadrant C3,580,193793,677
Events in quadrant D5,180,589699,589

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0203183
B0158703
C0161043
D0206943

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75962803.686151%
B75962703.554502%
C75962283.001580%
D75965747.556609%

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 8626 7599 20 20 0.23% 0.26%
B 8626 7599 1 1 0.01% 0.01%
C 8626 7599 3 3 0.03% 0.04%
D 8626 7599 268 268 3.11% 3.53%

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 83 1269151 6954.06 885 866 182.4
A 7 3 237618 1298.12 885 866 182.4
A 15 222 143604 782.64 885 866 182.4
B 12 111 23533 127.41 889 861 177.9
B 11 111 21675 116.97 889 861 177.9
B 14 111 21412 115.49 889 861 177.9
C 14 254 61891 292.54 882 883 208.5
C 14 96 44111 207.29 882 883 208.5
C 3 233 11585 51.32 882 883 208.5
D 13 249 981799 4583.57 858 831 214.0
D 1 47 465864 2172.86 858 831 214.0
D 1 52 220561 1026.69 858 831 214.0

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