ASTROSAT CZTI

Data Quality Report

Orbit 19192

Creation date: 2024-06-27T17:59:55.548282
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/AS1A05_046T01_9000002838_19192cztM0_level2.evt modeM0/AS1A05_046T01_9000002838_19192cztM0_level2_quad_clean.evt
Size (bytes)496,632,96092,589,120
Size473.6 MB 88.3 MB
Events in quadrant A3,205,036598,153
Events in quadrant B3,427,175618,120
Events in quadrant C3,626,042589,640
Events in quadrant D4,369,671573,359

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134341
B0141111
C0148011
D0169561

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6082600.986518%
B60831121.841197%
C60821111.825058%
D60823986.543900%

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 7387 6083 0 0 0.00% 0.00%
B 7388 6084 17 17 0.23% 0.28%
C 7387 6083 0 0 0.00% 0.00%
D 7387 6083 250 250 3.38% 4.11%

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 8 144 28015 165.35 822 806 164.6
A 11 29 11102 62.57 822 806 164.6
A 13 254 8984 49.7 822 806 164.6
B 0 197 142676 923.03 826 808 153.7
B 0 190 25947 163.56 826 808 153.7
B 0 189 18874 117.54 826 808 153.7
C 3 233 385189 2089.7 797 804 183.9
C 14 238 126143 681.4 797 804 183.9
C 0 207 7749 37.76 797 804 183.9
D 10 66 1145038 6038.35 789 769 189.5
D 11 176 147293 773.21 789 769 189.5
D 1 52 101561 531.88 789 769 189.5

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