ASTROSAT CZTI

Data Quality Report

Orbit 10293

Creation date: 2024-06-27T15:57:32.499549
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_072T01_9000001484_10293cztM0_level2.evt modeM0/AS1A03_072T01_9000001484_10293cztM0_level2_quad_clean.evt
Size (bytes)508,204,80096,465,600
Size484.7 MB 92.0 MB
Events in quadrant A3,610,421626,891
Events in quadrant B3,891,873633,069
Events in quadrant C3,207,051617,997
Events in quadrant D4,235,240584,898

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500638
B01566332
C01395723
D01672249

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65742503.802860%
B65752303.498099%
C65781362.067498%
D65741762.677213%

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 7519 6589 92 92 1.22% 1.40%
B 7519 6590 70 70 0.93% 1.06%
C 7519 6590 20 20 0.27% 0.30%
D 7519 6590 83 83 1.10% 1.26%

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 5 16 405552 2434.74 820 804 166.2
A 15 174 19808 114.32 820 804 166.2
A 3 1 11402 63.75 820 804 166.2
B 4 239 511473 3257.59 816 797 156.8
B 11 51 106726 675.72 816 797 156.8
B 0 214 43317 271.23 816 797 156.8
C 4 254 141295 777.08 785 791 180.8
C 13 61 5874 28.11 785 791 180.8
C 14 234 3157 13.09 785 791 180.8
D 2 16 404487 2137.01 791 770 188.9
D 8 195 342705 1809.97 791 770 188.9
D 1 20 151925 800.11 791 770 188.9

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