ASTROSAT CZTI

Data Quality Report

Orbit 19068

Creation date: 2024-06-27T17:58:43.225714
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/AS1A05_046T01_9000002834_19068cztM0_level2.evt modeM0/AS1A05_046T01_9000002834_19068cztM0_level2_quad_clean.evt
Size (bytes)512,688,96053,902,080
Size488.9 MB 51.4 MB
Events in quadrant A2,321,058351,162
Events in quadrant B2,776,282356,338
Events in quadrant C2,388,377348,443
Events in quadrant D7,710,850234,561

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014640
B014442
C014438
D014543

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149774790
B0162224882
C0149554712
D04069114691

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C031
D021

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A49481342.708165%
B49252144.345178%
C49691462.938217%
D4464223049.955197%

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 6887 5414 0 0 0.00% 0.00%
B 6934 5386 46 46 0.66% 0.85%
C 6902 5452 0 0 0.00% 0.00%
D 6916 4972 1566 1566 22.64% 31.50%

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 6435 47.01 601 586 124.4
A 0 226 5196 37.05 601 586 124.4
A 3 137 4884 34.54 601 586 124.4
B 0 189 123267 1043.49 593 576 117.6
B 7 220 122023 1032.91 593 576 117.6
B 4 216 104223 881.52 593 576 117.6
C 14 238 89754 643.67 581 584 138.5
C 3 233 15928 110.76 581 584 138.5
C 8 128 10124 68.86 581 584 138.5
D 7 238 4500582 41380.49 435 421 108.8
D 1 20 1053455 9683.0 435 421 108.8
D 1 52 255616 2346.6 435 421 108.8

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