ASTROSAT CZTI

Data Quality Report

Orbit 10180

Creation date: 2024-06-27T15:56:02.457306
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_133T01_9000001464_10180cztM0_level2.evt modeM0/AS1A03_133T01_9000001464_10180cztM0_level2_quad_clean.evt
Size (bytes)560,854,080113,872,320
Size534.9 MB 108.6 MB
Events in quadrant A3,770,822733,392
Events in quadrant B4,244,384737,020
Events in quadrant C3,505,486732,633
Events in quadrant D4,926,815694,347

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0167753
B0179302
C0162462
D0197742

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7939630.793551%
B79391351.700466%
C7939240.302305%
D79391021.284797%

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 8524 7941 10 10 0.12% 0.13%
B 8524 7941 22 22 0.26% 0.28%
C 8524 7941 0 0 0.00% 0.00%
D 8524 7941 64 64 0.75% 0.81%

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 15 174 74027 386.51 928 909 189.2
A 13 251 42991 222.45 928 909 189.2
A 3 1 33393 171.71 928 909 189.2
B 11 51 216923 1210.65 931 908 178.4
B 4 239 110596 614.74 931 908 178.4
B 5 255 78991 437.61 931 908 178.4
C 14 67 12312 54.86 895 899 208.0
C 13 61 6726 28.01 895 899 208.0
C 15 127 2568 8.02 895 899 208.0
D 8 195 671510 3135.06 887 862 213.9
D 1 52 222636 1036.72 887 862 213.9
D 7 71 175771 817.64 887 862 213.9

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