ASTROSAT CZTI

Data Quality Report

Orbit 32250

Creation date: 2024-06-27T20:38:04.765891
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/AS1T04_054T01_9000004694_32250cztM0_level2.evt modeM0/AS1T04_054T01_9000004694_32250cztM0_level2_quad_clean.evt
Size (bytes)564,071,040104,382,720
Size537.9 MB 99.5 MB
Events in quadrant A3,236,130701,965
Events in quadrant B5,211,350715,128
Events in quadrant C4,059,156665,463
Events in quadrant D4,154,209643,192

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134793
B0195912
C0160422
D0166082

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6243240.384431%
B62431071.713920%
C62433215.141759%
D6243991.585776%

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 7578 6244 0 0 0.00% 0.00%
B 7578 6244 19 19 0.25% 0.30%
C 7578 6244 64 64 0.84% 1.02%
D 7578 6244 60 60 0.79% 0.96%

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 6 18770 108.37 833 822 165.6
A 13 254 11265 63.05 833 822 165.6
A 3 137 7756 41.87 833 822 165.6
B 6 159 1741998 11288.8 833 814 154.2
B 4 80 61485 393.35 833 814 154.2
B 0 245 46741 297.76 833 814 154.2
C 0 10 348645 1886.63 795 804 184.4
C 3 233 343510 1858.78 795 804 184.4
C 14 238 160291 865.03 795 804 184.4
D 8 195 780897 4077.14 800 780 191.3
D 13 249 191370 996.08 800 780 191.3
D 12 233 103530 537.0 800 780 191.3

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