ASTROSAT CZTI

Data Quality Report

Orbit 12433

Creation date: 2024-06-27T16:27:16.557757
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_141T01_9000001848_12433cztM0_level2.evt modeM0/AS1A04_141T01_9000001848_12433cztM0_level2_quad_clean.evt
Size (bytes)463,115,52084,744,000
Size441.7 MB 80.8 MB
Events in quadrant A3,535,606527,293
Events in quadrant B3,764,161540,247
Events in quadrant C3,170,295543,821
Events in quadrant D3,124,644512,463

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143573
B0150102
C0131292
D0132612

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6337280.441849%
B63371582.493293%
C633780.126243%
D6337150.236705%

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 7688 6338 6 6 0.08% 0.09%
B 7688 6338 94 94 1.22% 1.48%
C 7688 6339 0 0 0.00% 0.00%
D 7688 6339 6 6 0.08% 0.09%

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 13 251 140933 863.49 807 792 162.3
A 1 162 95159 581.45 807 792 162.3
A 1 178 47721 289.16 807 792 162.3
B 4 239 503317 3320.35 815 796 151.3
B 11 51 22948 146.37 815 796 151.3
B 3 64 18512 117.06 815 796 151.3
C 13 61 6063 28.38 812 814 184.9
C 15 208 4033 17.41 812 814 184.9
C 3 202 1998 6.4 812 814 184.9
D 1 52 27472 142.56 793 772 187.3
D 2 234 18815 96.34 793 772 187.3
D 8 195 18662 95.52 793 772 187.3

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