ASTROSAT CZTI

Data Quality Report

Orbit 04563

Creation date: 2024-06-27T14:43:50.290546
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/AS1G05_233T10_9000000570_04563cztM0_level2.evt modeM0/AS1G05_233T10_9000000570_04563cztM0_level2_quad_clean.evt
Size (bytes)767,629,44089,611,200
Size732.1 MB 85.5 MB
Events in quadrant A3,479,588572,347
Events in quadrant B3,987,319570,029
Events in quadrant C6,507,437551,020
Events in quadrant D8,758,187490,207

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158082
B01693113
C0247771
D0312803

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76132683.520294%
B76082643.470032%
C7613129016.944700%
D7612174722.950604%

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 7628 7614 1 1 0.01% 0.01%
B 7628 7614 21 21 0.28% 0.28%
C 7628 7612 867 867 11.37% 11.39%
D 7628 7614 1315 1315 17.24% 17.27%

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 13 248 13210 66.9 893 870 184.5
A 12 194 9235 45.35 893 870 184.5
A 0 226 9011 44.14 893 870 184.5
B 14 167 353224 2031.4 896 870 173.5
B 5 70 66408 377.84 896 870 173.5
B 10 246 32255 180.94 896 870 173.5
C 14 48 3377711 18203.0 790 792 185.5
C 9 247 33754 177.68 790 792 185.5
C 13 61 6612 31.37 790 792 185.5
D 9 35 3360610 17297.18 798 773 194.2
D 14 35 774642 3984.05 798 773 194.2
D 13 235 424728 2182.61 798 773 194.2

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