ASTROSAT CZTI

Data Quality Report

Orbit 33368

Creation date: 2024-06-27T20:47:57.625957
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_058T15_9000004786_33368cztM0_level2.evt modeM0/AS1A10_058T15_9000004786_33368cztM0_level2_quad_clean.evt
Size (bytes)496,961,28089,625,600
Size473.9 MB 85.5 MB
Events in quadrant A2,413,931606,060
Events in quadrant B3,764,321596,827
Events in quadrant C3,080,813595,975
Events in quadrant D5,447,349559,019

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0102723
B0144872
C0121722
D0198202

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A508830.058962%
B50882084.088050%
C50881001.965409%
D50884088.018868%

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 7030 5089 0 0 0.00% 0.00%
B 7030 5089 116 116 1.65% 2.28%
C 7030 5089 82 82 1.17% 1.61%
D 7030 5088 342 342 4.86% 6.72%

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 13 254 7872 58.89 623 612 123.3
A 3 137 5636 40.75 623 612 123.3
A 0 226 5404 38.87 623 612 123.3
B 0 219 458116 3956.7 611 598 115.6
B 5 200 221683 1911.99 611 598 115.6
B 0 189 192256 1657.49 611 598 115.6
C 15 208 324163 2385.05 590 597 135.7
C 15 214 223002 1639.38 590 597 135.7
C 0 10 163369 1199.82 590 597 135.7
D 8 195 1156546 7464.86 584 570 154.9
D 1 52 914125 5899.39 584 570 154.9
D 2 250 353030 2276.05 584 570 154.9

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