ASTROSAT CZTI

Data Quality Report

Orbit 07643

Creation date: 2024-06-27T15:22:12.479999
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/AS1G06_124T01_9000001054_07643cztM0_level2.evt modeM0/AS1G06_124T01_9000001054_07643cztM0_level2_quad_clean.evt
Size (bytes)464,186,88063,296,640
Size442.7 MB 60.4 MB
Events in quadrant A3,307,906371,608
Events in quadrant B3,301,131375,704
Events in quadrant C3,489,536371,810
Events in quadrant D3,530,900357,136

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135403
B0136072
C0146252
D0145142

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63051492.363204%
B63051402.220460%
C63051101.744647%
D63051732.743854%

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 7550 6305 6 6 0.08% 0.10%
B 7550 6306 0 0 0.00% 0.00%
C 7550 6306 0 0 0.00% 0.00%
D 7550 6306 42 42 0.56% 0.67%

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 0 128 89206 529.01 832 815 167.1
A 0 226 8002 43.01 832 815 167.1
A 12 194 7029 37.19 832 815 167.1
B 0 214 42127 262.52 829 812 157.4
B 0 219 26490 163.16 829 812 157.4
B 12 111 15901 95.88 829 812 157.4
C 1 16 310215 1664.68 806 811 185.9
C 9 68 34083 179.01 806 811 185.9
C 13 61 6242 29.22 806 811 185.9
D 2 152 154186 774.76 809 785 198.0
D 14 34 146189 734.37 809 785 198.0
D 2 14 51909 258.21 809 785 198.0

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