ASTROSAT CZTI

Data Quality Report

Orbit 30207

Creation date: 2024-06-27T20:12:14.279114
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_071T15_9000004346_30207cztM0_level2.evt modeM0/AS1A10_071T15_9000004346_30207cztM0_level2_quad_clean.evt
Size (bytes)528,001,92096,710,400
Size503.5 MB 92.2 MB
Events in quadrant A3,196,142632,850
Events in quadrant B5,008,155642,956
Events in quadrant C3,269,444615,491
Events in quadrant D4,084,721592,564

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135782
B0193072
C0137922
D0162332

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6375600.941176%
B6375941.474510%
C6374841.317854%
D63741672.620019%

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 7600 6375 3 3 0.04% 0.05%
B 7600 6376 0 0 0.00% 0.00%
C 7599 6375 0 0 0.00% 0.00%
D 7599 6375 117 117 1.54% 1.84%

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 8 192 27335 161.88 821 804 163.9
A 13 254 10925 61.76 821 804 163.9
A 3 137 8020 44.03 821 804 163.9
B 6 159 1794299 11595.9 818 798 154.7
B 12 111 18793 116.35 818 798 154.7
B 11 111 17302 106.71 818 798 154.7
C 14 238 130222 699.01 793 800 185.2
C 10 22 25342 132.55 793 800 185.2
C 2 114 14804 75.64 793 800 185.2
D 13 104 370450 1961.98 786 768 188.4
D 7 223 308758 1634.57 786 768 188.4
D 8 195 265359 1404.24 786 768 188.4

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