ASTROSAT CZTI

Data Quality Report

Orbit 22323

Creation date: 2024-06-27T18:39:28.625179
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_149T01_9000003304_22323cztM0_level2.evt modeM0/AS1A07_149T01_9000003304_22323cztM0_level2_quad_clean.evt
Size (bytes)467,622,72096,739,200
Size446.0 MB 92.3 MB
Events in quadrant A3,258,638617,395
Events in quadrant B3,435,292632,117
Events in quadrant C3,367,118603,707
Events in quadrant D3,626,835590,523

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142601
B0146161
C0143611
D0154951

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69721031.477338%
B69721241.778543%
C69721371.965003%
D69721612.309237%

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 7527 6973 0 0 0.00% 0.00%
B 7527 6972 5 5 0.07% 0.07%
C 7527 6973 0 0 0.00% 0.00%
D 7527 6973 72 72 0.96% 1.03%

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 9780 52.62 845 826 170.2
A 0 226 7183 37.36 845 826 170.2
A 3 137 7123 37.0 845 826 170.2
B 0 245 75093 463.96 844 822 160.1
B 12 111 19349 115.74 844 822 160.1
B 3 64 17942 106.95 844 822 160.1
C 14 238 131549 681.48 822 828 191.8
C 10 91 12925 63.06 822 828 191.8
C 3 9 8777 41.44 822 828 191.8
D 1 52 445130 2224.64 826 801 199.7
D 13 172 30060 146.49 826 801 199.7
D 2 234 26472 128.53 826 801 199.7

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