ASTROSAT CZTI

Data Quality Report

Orbit 09593

Creation date: 2024-06-27T15:48:07.817502
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/AS1G05_238T01_9000001364_09593cztM0_level2.evt modeM0/AS1G05_238T01_9000001364_09593cztM0_level2_quad_clean.evt
Size (bytes)2,002,642,560346,406,400
Size1.9 GB 330.4 MB
Events in quadrant A15,932,3162,172,588
Events in quadrant B13,573,9752,192,868
Events in quadrant C12,653,9332,134,817
Events in quadrant D16,581,3262,049,125

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0681542031
B0608811704
C0590331606
D0698301882

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A059022
B059018
C059014
D059020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0401
D0400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A282214751.683144%
B282702740.969225%
C28290970.342877%
D282589593.393729%

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 32990 28794 20 20 0.06% 0.07%
B 32990 28792 42 42 0.13% 0.15%
C 32990 28823 1 1 0.00% 0.00%
D 32990 28777 663 663 2.01% 2.30%

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 1203272 1786.63 3341 3275 671.7
A 1 178 621881 921.02 3341 3275 671.7
A 1 161 588520 871.35 3341 3275 671.7
B 4 80 287497 445.82 3352 3267 637.5
B 0 214 99300 150.63 3352 3267 637.5
B 12 111 73502 110.16 3352 3267 637.5
C 13 61 24178 27.77 3239 3250 753.7
C 8 128 11908 11.49 3239 3250 753.7
C 14 67 9705 8.56 3239 3250 753.7
D 1 52 2819932 3503.25 3190 3108 804.1
D 8 195 747038 925.22 3190 3108 804.1
D 13 104 240526 295.27 3190 3108 804.1

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