ASTROSAT CZTI

Data Quality Report

Orbit 29874

Creation date: 2024-06-27T20:08:32.708571
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_102T10_9000004282_29874cztM0_level2.evt modeM0/AS1A10_102T10_9000004282_29874cztM0_level2_quad_clean.evt
Size (bytes)552,337,92092,871,360
Size526.8 MB 88.6 MB
Events in quadrant A3,562,367612,919
Events in quadrant B5,418,528603,684
Events in quadrant C3,650,497571,266
Events in quadrant D3,646,390561,358

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147862
B0205062
C0149452
D0148392

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6647811.218595%
B66471462.196480%
C66471101.654882%
D6647650.977885%

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 7832 6648 2 2 0.03% 0.03%
B 7832 6648 0 0 0.00% 0.00%
C 7832 6648 0 0 0.00% 0.00%
D 7832 6648 7 7 0.09% 0.11%

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 23459 125.37 915 897 180.0
A 13 254 11848 60.85 915 897 180.0
A 5 168 8657 43.12 915 897 180.0
B 6 159 1872564 11174.95 891 871 167.5
B 0 190 37620 219.41 891 871 167.5
B 12 111 19694 112.38 891 871 167.5
C 3 233 157282 804.76 851 857 194.4
C 14 238 140261 717.19 851 857 194.4
C 10 22 23301 115.47 851 857 194.4
D 8 195 192825 945.35 869 848 203.1
D 2 250 84326 411.07 869 848 203.1
D 13 153 34897 167.67 869 848 203.1

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