ASTROSAT CZTI

Data Quality Report

Orbit 45769

Creation date: 2024-06-27T23:15:59.188378
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/AS1T05_183T01_9000006124_45769cztM0_level2.fits modeM0/AS1T05_183T01_9000006124_45769cztM0_level2_quad_clean.evt
Size (bytes)721,293,120122,898,240
Size687.9 MB 117.2 MB
Events in quadrant A7,244,480833,702
Events in quadrant B8,691,062774,142
Events in quadrant C4,396,142836,623
Events in quadrant D5,767,441735,177

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270222
B0313670
C0184310
D0223690

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77791692.172516%
B7780105613.573265%
C7780971.246787%
D77804555.848329%

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 7779 7779 65 65 0.84% 0.84%
B 7780 7780 604 604 7.76% 7.76%
C 7780 7780 88 88 1.13% 1.13%
D 7780 7780 416 416 5.35% 5.35%

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 3512886 18971.72 883 865 185.1
A 13 248 210287 1131.28 883 865 185.1
A 13 6 23284 121.11 883 865 185.1
B 3 112 2709082 16237.16 843 819 166.8
B 0 171 1042638 6246.14 843 819 166.8
B 12 18 698251 4181.39 843 819 166.8
C 2 14 311457 1512.57 867 876 205.3
C 14 220 200251 970.98 867 876 205.3
C 14 254 179709 870.94 867 876 205.3
D 2 249 610168 2824.83 851 824 215.7
D 8 48 420089 1943.65 851 824 215.7
D 11 176 403153 1865.14 851 824 215.7

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