ASTROSAT CZTI

Data Quality Report

Orbit 20230530_T05_110T01_9000005672_level2

Creation date: 2023-05-30T22:25:51.266066
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/AS1T05_110T01_9000005672cztM0_level2.fits modeM0/AS1T05_110T01_9000005672cztM0_level2_quad_clean.evt
Size (bytes)161,121,600215,881,920
Size153.7 MB 205.9 MB
Events in quadrant A953,8221,382,844
Events in quadrant B919,3521,384,104
Events in quadrant C923,5581,303,208
Events in quadrant D805,9561,191,424

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03780
B03780
C03780
D03780

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0395980
B0389880
C0404560
D0454850

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A18530650.350783%
B18530530.286023%
C185304282.309768%
D185304822.601187%

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 23902 18531 0 0 0.00% 0.00%
B 23902 18530 0 0 0.00% 0.00%
C 23902 18506 0 0 0.00% 0.00%
D 23902 18525 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 9 19 816 8.86 248 232 65.9
A 7 110 771 8.18 248 232 65.9
A 15 236 748 7.83 248 232 65.9
B 2 9 784 11.19 243 232 49.3
B 3 80 653 8.53 243 232 49.3
B 2 8 651 8.49 243 232 49.3
C 1 81 786 8.68 244 228 64.3
C 1 80 733 7.85 244 228 64.3
C 1 65 656 6.66 244 228 64.3
D 10 189 637 6.71 230 209 63.8
D 4 160 607 6.24 230 209 63.8
D 6 38 594 6.03 230 209 63.8

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