ASTROSAT CZTI

Data Quality Report

Orbit 13579

Creation date: 2024-06-27T16:42:58.431209
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_047T01_9000002002_13579cztM0_level2.evt modeM0/AS1G08_047T01_9000002002_13579cztM0_level2_quad_clean.evt
Size (bytes)486,403,20098,887,680
Size463.9 MB 94.3 MB
Events in quadrant A3,228,044640,843
Events in quadrant B3,677,547642,010
Events in quadrant C3,397,249639,659
Events in quadrant D3,977,302609,688

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137803
B0151032
C0141382
D0160552

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6630951.432881%
B66302053.092006%
C6630550.829563%
D66301652.488688%

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 7496 6631 0 0 0.00% 0.00%
B 7496 6631 79 79 1.05% 1.19%
C 7496 6631 0 0 0.00% 0.00%
D 7496 6631 120 120 1.60% 1.81%

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 1 162 18932 107.61 830 812 168.4
A 15 69 8953 48.35 830 812 168.4
A 0 226 7418 39.23 830 812 168.4
B 4 142 250202 1593.84 819 800 156.5
B 3 64 81678 516.86 819 800 156.5
B 0 182 59296 373.83 819 800 156.5
C 3 233 289798 1574.05 797 801 183.6
C 13 61 5789 27.17 797 801 183.6
C 8 222 1850 5.71 797 801 183.6
D 1 20 492165 2607.83 797 776 188.4
D 8 195 242866 1284.79 797 776 188.4
D 13 249 84566 444.68 797 776 188.4

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