ASTROSAT CZTI

Data Quality Report

Orbit 09204

Creation date: 2024-06-27T15:42:39.898812
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/AS1C02_042T02_9000001284_09204cztM0_level2.evt modeM0/AS1C02_042T02_9000001284_09204cztM0_level2_quad_clean.evt
Size (bytes)450,080,64080,910,720
Size429.2 MB 77.2 MB
Events in quadrant A3,429,321511,307
Events in quadrant B3,578,310521,610
Events in quadrant C3,018,877505,757
Events in quadrant D3,186,438482,118

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140113
B0144779
C0127617
D0134944

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6148380.618087%
B61441822.962240%
C6146130.211520%
D6147310.504311%

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 7467 6147 8 8 0.11% 0.13%
B 7467 6145 91 91 1.22% 1.48%
C 7467 6148 2 2 0.03% 0.03%
D 7467 6147 38 38 0.51% 0.62%

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 8 5 260968 1647.52 773 760 157.9
A 1 162 106633 670.34 773 760 157.9
A 1 178 22805 139.58 773 760 157.9
B 10 252 434680 2939.98 775 758 147.6
B 4 48 66339 444.34 775 758 147.6
B 0 214 19887 129.61 775 758 147.6
C 3 233 114413 664.41 744 749 171.1
C 13 61 5618 28.46 744 749 171.1
C 12 4 2682 11.3 744 749 171.1
D 4 95 207762 1069.1 734 714 193.7
D 7 71 65250 333.23 734 714 193.7
D 2 14 39053 197.96 734 714 193.7

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