ASTROSAT CZTI

Data Quality Report

Orbit 24352

Creation date: 2024-06-27T19:05:05.881200
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_145T01_9000003594_24352cztM0_level2.evt modeM0/AS1A07_145T01_9000003594_24352cztM0_level2_quad_clean.evt
Size (bytes)556,384,32086,146,560
Size530.6 MB 82.2 MB
Events in quadrant A3,284,460532,591
Events in quadrant B3,382,419549,391
Events in quadrant C4,754,933522,097
Events in quadrant D4,948,849511,942

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144141
B0146041
C0187693
D0193191

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70751181.667845%
B70761261.780667%
C70753414.819788%
D70752633.717314%

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 7380 7077 0 0 0.00% 0.00%
B 7381 7078 6 6 0.08% 0.08%
C 7380 7077 144 144 1.95% 2.03%
D 7380 7077 134 134 1.82% 1.89%

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 3 1 13638 74.54 848 829 171.8
A 13 254 10117 54.05 848 829 171.8
A 3 137 8025 41.88 848 829 171.8
B 12 17 38445 230.27 844 822 163.4
B 0 190 21870 128.82 844 822 163.4
B 12 111 20013 117.46 844 822 163.4
C 2 16 815199 4303.71 805 808 189.2
C 7 247 670382 3538.41 805 808 189.2
C 14 238 128078 672.57 805 808 189.2
D 8 195 967851 4815.58 817 789 200.8
D 1 52 474727 2360.02 817 789 200.8
D 7 238 182016 902.44 817 789 200.8

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