ASTROSAT CZTI

Data Quality Report

Orbit 10653

Creation date: 2024-06-27T16:02:02.358270
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/AS1T01_191T01_9000001536_10653cztM0_level2.evt modeM0/AS1T01_191T01_9000001536_10653cztM0_level2_quad_clean.evt
Size (bytes)485,432,64081,383,040
Size462.9 MB 77.6 MB
Events in quadrant A3,657,354497,868
Events in quadrant B3,856,174541,004
Events in quadrant C2,702,644543,965
Events in quadrant D4,112,923497,311

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01446110
B0150781
C0115371
D0158981

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A54864327.874590%
B54882945.357143%
C5488220.400875%
D54881142.077259%

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 6818 5489 370 370 5.43% 6.74%
B 6818 5489 176 176 2.58% 3.21%
C 6818 5489 6 6 0.09% 0.11%
D 6818 5489 94 94 1.38% 1.71%

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 15 239 1031852 7674.19 654 642 134.4
A 15 223 89413 660.63 654 642 134.4
A 1 162 6573 44.14 654 642 134.4
B 4 239 1136236 8818.86 682 670 128.8
B 0 214 36618 279.17 682 670 128.8
B 0 219 17332 129.4 682 670 128.8
C 4 254 62284 400.24 662 670 153.9
C 14 234 40948 261.64 662 670 153.9
C 4 175 16616 103.58 662 670 153.9
D 1 20 1094074 6944.54 648 633 157.5
D 1 52 216250 1369.4 648 633 157.5
D 12 233 104234 657.98 648 633 157.5

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