ASTROSAT CZTI

Data Quality Report

Orbit 20240213_A13_047T01_9000006068_level2

Creation date: 2024-02-16T16:37:15.744685
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/AS1A13_047T01_9000006068cztM0_level2.fits modeM0/AS1A13_047T01_9000006068cztM0_level2_quad_clean.evt
Size (bytes)245,113,920193,271,040
Size233.8 MB 184.3 MB
Events in quadrant A1,452,4861,033,465
Events in quadrant B1,421,9681,056,729
Events in quadrant C1,454,1421,002,624
Events in quadrant D1,237,738902,788

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05480
B05460
C05480
D05480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0879100
B0602560
C0663540
D0722870

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0550
B0550
C0550
D0550

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A270016062.244361%
B270033951.462800%
C269988463.133565%
D269998343.089003%

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 32371 27002 0 0 0.00% 0.00%
B 32371 26992 0 0 0.00% 0.00%
C 32370 26982 0 0 0.00% 0.00%
D 32370 26989 0 0 0.00% 0.00%

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 7 110 1197 8.74 378 354 96.5
A 0 29 1162 8.37 378 354 96.5
A 0 30 1099 7.72 378 354 96.5
B 2 9 1299 12.27 377 360 76.5
B 2 8 1019 8.61 377 360 76.5
B 3 17 998 8.34 377 360 76.5
C 1 81 1159 8.02 384 359 99.8
C 3 202 1083 7.26 384 359 99.8
C 3 203 1082 7.25 384 359 99.8
D 6 79 919 6.03 356 323 98.9
D 3 14 903 5.87 356 323 98.9
D 6 231 896 5.79 356 323 98.9

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