ASTROSAT CZTI

Data Quality Report

Orbit 23279

Creation date: 2024-06-27T18:52:16.401340
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/AS1C05_005T01_9000003440_23279cztM0_level2.evt modeM0/AS1C05_005T01_9000003440_23279cztM0_level2_quad_clean.evt
Size (bytes)547,476,480109,382,400
Size522.1 MB 104.3 MB
Events in quadrant A3,431,162710,293
Events in quadrant B3,790,826723,079
Events in quadrant C3,899,550691,760
Events in quadrant D4,961,129676,838

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152232
B0157844
C0164524
D0198864

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7340270.367847%
B7340841.144414%
C73402052.792916%
D73401672.275204%

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 8600 7342 0 0 0.00% 0.00%
B 8601 7343 0 0 0.00% 0.00%
C 8601 7343 44 44 0.51% 0.60%
D 8601 7343 68 68 0.79% 0.93%

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 12000 62.19 889 868 179.0
A 3 137 8004 39.87 889 868 179.0
A 0 226 7526 37.2 889 868 179.0
B 4 206 284706 1670.03 891 867 170.0
B 12 111 20693 116.65 891 867 170.0
B 11 111 18272 102.41 891 867 170.0
C 10 9 380929 1893.79 859 865 200.7
C 14 238 136791 677.3 859 865 200.7
C 8 208 18585 88.3 859 865 200.7
D 7 238 1324895 6297.32 866 841 210.3
D 12 233 133427 630.59 866 841 210.3
D 1 239 99371 468.62 866 841 210.3

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