ASTROSAT CZTI

Data Quality Report

Orbit 14543

Creation date: 2024-06-27T16:56:40.077987
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/AS1G08_081T01_9000002144_14543cztM0_level2.evt modeM0/AS1G08_081T01_9000002144_14543cztM0_level2_quad_clean.evt
Size (bytes)541,414,08088,790,400
Size516.3 MB 84.7 MB
Events in quadrant A3,478,648584,036
Events in quadrant B3,359,147570,510
Events in quadrant C3,418,107563,684
Events in quadrant D5,726,385542,927

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144092
B0140951
C0141751
D0210721

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6126500.816193%
B6126891.452824%
C6126580.946784%
D61263565.811296%

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 7312 6128 1 1 0.01% 0.02%
B 7312 6128 32 32 0.44% 0.52%
C 7312 6128 10 10 0.14% 0.16%
D 7312 6128 486 486 6.65% 7.93%

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 15 405032 2580.38 785 770 156.7
A 12 189 44673 280.23 785 770 156.7
A 13 248 7438 42.56 785 770 156.7
B 0 229 106415 722.41 780 762 146.3
B 3 209 41916 281.39 780 762 146.3
B 0 189 41144 276.11 780 762 146.3
C 3 233 428385 2425.18 766 773 176.3
C 13 61 5511 26.87 766 773 176.3
C 14 234 3337 14.54 766 773 176.3
D 12 110 2648951 14262.84 768 748 185.7
D 13 122 77177 411.64 768 748 185.7
D 2 152 46736 247.68 768 748 185.7

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