ASTROSAT CZTI

Data Quality Report

Orbit 30334

Creation date: 2024-06-27T20:13:52.088004
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/AS1A10_053T13_9000004360_30334cztM0_level2.evt modeM0/AS1A10_053T13_9000004360_30334cztM0_level2_quad_clean.evt
Size (bytes)516,761,28087,451,200
Size492.8 MB 83.4 MB
Events in quadrant A3,280,048552,737
Events in quadrant B5,067,841554,732
Events in quadrant C3,361,923539,460
Events in quadrant D3,482,340530,447

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139811
B0203021
C0141431
D0145051

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6751590.873945%
B67521111.643957%
C6752901.332938%
D6752670.992299%

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 7591 6751 0 0 0.00% 0.00%
B 7592 6752 1 1 0.01% 0.01%
C 7592 6752 1 1 0.01% 0.01%
D 7592 6752 21 21 0.28% 0.31%

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 5 203 58842 349.88 825 806 165.9
A 14 239 22707 132.03 825 806 165.9
A 13 254 12684 71.61 825 806 165.9
B 6 159 1808456 11593.93 809 787 155.9
B 0 190 33009 206.66 809 787 155.9
B 6 36 25603 159.16 809 787 155.9
C 3 233 153388 828.45 785 791 184.2
C 14 238 126723 683.69 785 791 184.2
C 2 114 15448 79.57 785 791 184.2
D 2 250 155191 818.07 800 779 188.8
D 8 195 143870 758.09 800 779 188.8
D 13 168 96663 507.99 800 779 188.8

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