ASTROSAT CZTI

Data Quality Report

Orbit 30023

Creation date: 2024-06-27T20:10:00.448198
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/AS1A10_071T03_9000004314_30023cztM0_level2.evt modeM0/AS1A10_071T03_9000004314_30023cztM0_level2_quad_clean.evt
Size (bytes)559,584,00093,113,280
Size533.7 MB 88.8 MB
Events in quadrant A3,668,089605,129
Events in quadrant B5,457,061599,394
Events in quadrant C3,636,003569,675
Events in quadrant D3,722,324568,903

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147202
B0208992
C0146342
D0150282

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68371632.384087%
B68372563.744332%
C68372163.159280%
D68371442.106187%

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 7887 6838 0 0 0.00% 0.00%
B 7887 6837 0 0 0.00% 0.00%
C 7887 6837 2 2 0.03% 0.03%
D 7887 6838 33 33 0.42% 0.48%

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 5 203 23658 120.95 940 925 188.0
A 8 192 20957 106.58 940 925 188.0
A 13 254 11434 55.91 940 925 188.0
B 6 159 1853561 10581.13 914 894 175.1
B 12 111 21904 119.99 914 894 175.1
B 11 111 20106 109.73 914 894 175.1
C 14 238 145065 697.18 884 892 206.8
C 0 10 16899 77.41 884 892 206.8
C 2 114 16092 73.5 884 892 206.8
D 7 80 184934 865.11 901 880 212.8
D 8 195 94913 441.99 901 880 212.8
D 2 234 25517 115.8 901 880 212.8

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