ASTROSAT CZTI

Data Quality Report

Orbit 10213

Creation date: 2024-06-27T15:56:26.957138
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/AS1A03_099T01_9000001472_10213cztM0_level2.evt modeM0/AS1A03_099T01_9000001472_10213cztM0_level2_quad_clean.evt
Size (bytes)496,900,80082,180,800
Size473.9 MB 78.4 MB
Events in quadrant A3,675,333494,624
Events in quadrant B3,677,029500,462
Events in quadrant C3,328,126500,227
Events in quadrant D3,865,969478,749

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157793
B0156902
C0150862
D0164162

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73911351.826546%
B7391961.298877%
C7391610.825328%
D73911131.528886%

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 9106 7392 42 42 0.46% 0.57%
B 9106 7392 7 7 0.08% 0.09%
C 9106 7392 0 0 0.00% 0.00%
D 9106 7393 37 37 0.41% 0.50%

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 15 223 84552 478.32 870 852 175.0
A 8 5 81088 458.53 870 852 175.0
A 8 15 53251 299.45 870 852 175.0
B 0 214 92088 534.44 882 860 170.7
B 4 239 72093 417.3 882 860 170.7
B 11 51 42738 245.33 882 860 170.7
C 13 61 6520 28.38 853 856 199.5
C 4 175 2734 9.41 853 856 199.5
C 3 202 2118 6.32 853 856 199.5
D 8 195 280878 1383.53 842 818 202.4
D 1 52 146344 718.92 842 818 202.4
D 12 233 88818 434.73 842 818 202.4

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