ASTROSAT CZTI

Data Quality Report

Orbit 32339

Creation date: 2024-06-27T20:39:03.351694
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_005T01_9000004700_32339cztM0_level2.evt modeM0/AS1A10_005T01_9000004700_32339cztM0_level2_quad_clean.evt
Size (bytes)627,592,32080,994,240
Size598.5 MB 77.2 MB
Events in quadrant A3,102,711531,437
Events in quadrant B5,515,740508,583
Events in quadrant C3,617,782501,049
Events in quadrant D6,345,407472,105

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130612
B0209341
C0146301
D0235591

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6293180.286032%
B62933315.259812%
C62931241.970443%
D62933545.625298%

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 7488 6294 0 0 0.00% 0.00%
B 7488 6294 139 139 1.86% 2.21%
C 7488 6294 16 16 0.21% 0.25%
D 7488 6294 236 236 3.15% 3.75%

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 44663 280.71 787 772 156.4
A 13 6 14707 89.12 787 772 156.4
A 13 254 12389 74.3 787 772 156.4
B 6 159 1789150 12317.76 771 751 145.2
B 5 172 517079 3556.26 771 751 145.2
B 0 190 96974 662.74 771 751 145.2
C 3 233 359110 2012.15 757 762 178.1
C 14 238 120995 675.12 757 762 178.1
C 14 67 69015 383.25 757 762 178.1
D 8 195 1946250 10915.78 748 728 178.2
D 11 164 453051 2537.86 748 728 178.2
D 12 3 445422 2495.05 748 728 178.2

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