ASTROSAT CZTI

Data Quality Report

Orbit 32238

Creation date: 2024-06-27T20:37:57.474133
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/AS1T04_054T01_9000004694_32238cztM0_level2.evt modeM0/AS1T04_054T01_9000004694_32238cztM0_level2_quad_clean.evt
Size (bytes)552,404,16086,613,120
Size526.8 MB 82.6 MB
Events in quadrant A3,121,140563,293
Events in quadrant B5,042,142565,082
Events in quadrant C3,600,138541,012
Events in quadrant D4,543,589517,468

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130512
B0194851
C0145171
D0177431

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6248290.464149%
B62481792.864917%
C62481672.672855%
D6248891.424456%

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 7403 6249 3 3 0.04% 0.05%
B 7403 6249 62 62 0.84% 0.99%
C 7403 6249 28 28 0.38% 0.45%
D 7403 6249 25 25 0.34% 0.40%

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 12 96 49618 310.18 793 781 157.4
A 13 6 11363 67.21 793 781 157.4
A 13 254 10989 64.83 793 781 157.4
B 6 159 1699981 11399.3 789 769 149.1
B 4 80 143499 957.52 789 769 149.1
B 0 229 46002 303.45 789 769 149.1
C 3 233 286221 1616.79 761 770 176.6
C 0 10 173882 980.5 761 770 176.6
C 14 238 133906 754.08 761 770 176.6
D 8 195 1470751 8156.52 757 738 180.2
D 12 233 66759 366.32 757 738 180.2
D 12 218 63034 345.66 757 738 180.2

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