ASTROSAT CZTI

Data Quality Report

Orbit 05312

Creation date: 2024-06-27T14:53:47.517765
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/AS1G05_240T01_9000000674_05312cztM0_level2.evt modeM0/AS1G05_240T01_9000000674_05312cztM0_level2_quad_clean.evt
Size (bytes)463,680,00090,469,440
Size442.2 MB 86.3 MB
Events in quadrant A3,110,278573,058
Events in quadrant B3,733,359592,005
Events in quadrant C3,305,067572,735
Events in quadrant D3,440,599536,821

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138093
B0156172
C0140462
D0148352

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6668420.629874%
B66681522.279544%
C6668250.374925%
D66681051.574685%

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 7978 6670 6 6 0.08% 0.09%
B 7978 6670 44 44 0.55% 0.66%
C 7978 6670 1 1 0.01% 0.01%
D 7978 6670 63 63 0.79% 0.94%

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 50 22366 134.14 795 780 160.9
A 13 251 10861 62.65 795 780 160.9
A 0 247 9887 56.59 795 780 160.9
B 10 16 433059 2846.47 812 793 151.9
B 4 48 92107 601.3 812 793 151.9
B 4 80 30468 195.41 812 793 151.9
C 1 16 209796 1143.73 791 796 182.7
C 1 3 8028 39.58 791 796 182.7
C 13 61 6473 31.07 791 796 182.7
D 8 195 150939 791.57 772 748 189.7
D 12 233 145617 763.52 772 748 189.7
D 2 14 128359 672.57 772 748 189.7

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