ASTROSAT CZTI

Data Quality Report

Orbit 13430

Creation date: 2024-06-27T16:40:40.650992
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/AS1A04_103T01_9000001988_13430cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13430cztM0_level2_quad_clean.evt
Size (bytes)561,960,00063,993,600
Size535.9 MB 61.0 MB
Events in quadrant A3,274,817385,720
Events in quadrant B3,442,604388,604
Events in quadrant C3,244,322383,877
Events in quadrant D6,623,078332,414

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139283
B0143432
C0138272
D0239782

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6403951.483680%
B64031372.139622%
C6403651.015149%
D6403120618.834921%

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 7584 6404 0 0 0.00% 0.00%
B 7584 6404 36 36 0.47% 0.56%
C 7584 6404 0 0 0.00% 0.00%
D 7584 6404 1043 1043 13.75% 16.29%

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 16149 91.21 841 824 168.0
A 15 69 15379 86.63 841 824 168.0
A 0 226 7593 40.29 841 824 168.0
B 4 142 121021 764.93 834 814 157.1
B 0 214 39418 245.66 834 814 157.1
B 3 64 19321 117.77 834 814 157.1
C 3 233 69489 370.65 812 818 185.3
C 14 234 6867 32.65 812 818 185.3
C 13 61 5842 27.12 812 818 185.3
D 13 249 2555070 14845.93 721 700 172.1
D 1 52 1068055 6203.44 721 700 172.1
D 8 195 175912 1018.33 721 700 172.1

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