ASTROSAT CZTI

Data Quality Report

Orbit 23367

Creation date: 2024-06-27T18:53:24.111015
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/AS1A07_138T06_9000003456_23367cztM0_level2.evt modeM0/AS1A07_138T06_9000003456_23367cztM0_level2_quad_clean.evt
Size (bytes)550,324,80097,240,320
Size524.8 MB 92.7 MB
Events in quadrant A3,309,209623,802
Events in quadrant B3,470,669628,867
Events in quadrant C5,497,763598,884
Events in quadrant D3,906,411597,781

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145231
B0149421
C0215091
D0164641

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7109290.407934%
B7110741.040788%
C71103104.360056%
D71101321.856540%

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 7464 7111 0 0 0.00% 0.00%
B 7465 7111 7 7 0.09% 0.10%
C 7465 7111 54 54 0.72% 0.76%
D 7465 7112 91 91 1.22% 1.28%

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 13 254 11428 60.72 858 837 174.4
A 3 137 7631 38.95 858 837 174.4
A 0 226 7346 37.32 858 837 174.4
B 0 189 87652 539.2 849 831 161.0
B 12 111 19430 115.51 849 831 161.0
B 11 111 17134 101.25 849 831 161.0
C 0 239 2091719 11077.07 817 821 188.8
C 14 238 131600 692.83 817 821 188.8
C 7 247 45262 235.44 817 821 188.8
D 1 52 208696 1032.12 834 811 201.4
D 7 38 126195 622.52 834 811 201.4
D 2 152 124166 612.44 834 811 201.4

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