ASTROSAT CZTI

Data Quality Report

Orbit 09262

Creation date: 2024-06-27T15:43:34.457359
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/AS1A03_091T05_9000001300_09262cztM0_level2.evt modeM0/AS1A03_091T05_9000001300_09262cztM0_level2_quad_clean.evt
Size (bytes)400,216,32059,996,160
Size381.7 MB 57.2 MB
Events in quadrant A4,293,416355,196
Events in quadrant B2,514,205386,066
Events in quadrant C2,413,973372,936
Events in quadrant D2,563,731356,430

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016282126
B01072166
C01042858
D01109070

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A49194408.944908%
B4923541.096892%
C4927180.365334%
D4927460.933631%

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 6244 4953 379 379 6.07% 7.65%
B 6244 4953 5 5 0.08% 0.10%
C 6244 4953 5 5 0.08% 0.10%
D 6244 4954 39 39 0.62% 0.79%

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 16 1406314 11935.87 579 569 117.8
A 8 5 445161 3774.93 579 569 117.8
A 4 2 160262 1355.92 579 569 117.8
B 0 214 40758 348.43 607 591 115.3
B 0 245 30614 260.44 607 591 115.3
B 0 219 30513 259.56 607 591 115.3
C 9 68 87108 638.12 584 588 135.6
C 14 234 42789 311.25 584 588 135.6
C 8 222 4902 31.82 584 588 135.6
D 2 136 194098 1322.44 574 558 146.4
D 1 52 109954 747.49 574 558 146.4
D 7 71 28383 190.13 574 558 146.4

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