ASTROSAT CZTI

Data Quality Report

Orbit 09873

Creation date: 2024-06-27T15:51:42.140790
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_117T06_9000001404_09873cztM0_level2.evt modeM0/AS1A03_117T06_9000001404_09873cztM0_level2_quad_clean.evt
Size (bytes)432,325,44082,186,560
Size412.3 MB 78.4 MB
Events in quadrant A3,019,532512,014
Events in quadrant B3,102,074529,960
Events in quadrant C3,172,031508,858
Events in quadrant D3,355,850483,079

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133326
B0134392
C0138996
D0145642

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6516270.414365%
B6517560.859291%
C6515370.567920%
D6517741.135492%

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 7572 6518 0 0 0.00% 0.00%
B 7572 6518 2 2 0.03% 0.03%
C 7572 6518 9 9 0.12% 0.14%
D 7572 6518 51 51 0.67% 0.78%

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 0 226 7157 40.39 782 766 158.2
A 12 194 6039 33.32 782 766 158.2
A 13 253 4127 21.24 782 766 158.2
B 4 81 40689 266.0 787 771 150.1
B 12 111 17916 114.25 787 771 150.1
B 11 111 14856 93.86 787 771 150.1
C 4 254 143965 813.96 756 759 175.9
C 1 3 50545 282.97 756 759 175.9
C 14 234 17807 96.9 756 759 175.9
D 10 253 196561 1013.29 744 731 193.3
D 10 172 185480 955.95 744 731 193.3
D 1 52 108931 559.86 744 731 193.3

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