ASTROSAT CZTI

Data Quality Report

Orbit 14049

Creation date: 2024-06-27T16:49:39.675890
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/AS1A04_162T01_9000002074_14049cztM0_level2.evt modeM0/AS1A04_162T01_9000002074_14049cztM0_level2_quad_clean.evt
Size (bytes)486,884,160125,441,280
Size464.3 MB 119.6 MB
Events in quadrant A3,241,578846,497
Events in quadrant B3,527,286859,300
Events in quadrant C3,149,495837,642
Events in quadrant D4,375,032791,811

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138423
B0146262
C0136242
D0172082

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6662660.990693%
B66621071.606124%
C6662590.885620%
D66621922.882017%

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 7583 6664 0 0 0.00% 0.00%
B 7583 6664 15 15 0.20% 0.23%
C 7583 6664 0 0 0.00% 0.00%
D 7583 6664 127 127 1.67% 1.91%

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 12 189 88472 546.31 797 779 160.5
A 15 69 28798 174.55 797 779 160.5
A 8 15 28469 172.5 797 779 160.5
B 0 189 151814 1007.13 793 773 150.0
B 0 219 96502 638.31 793 773 150.0
B 3 209 41917 274.34 793 773 150.0
C 3 233 117386 654.72 775 777 178.1
C 0 207 7108 35.55 775 777 178.1
C 13 61 5443 26.2 775 777 178.1
D 1 52 850212 4516.89 772 749 188.1
D 8 195 235182 1246.56 772 749 188.1
D 13 122 139896 739.89 772 749 188.1

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