ASTROSAT CZTI

Data Quality Report

Orbit 19558

Creation date: 2024-06-27T18:04:03.834894
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/AS1A05_115T02_9000002906_19558cztM0_level2.evt modeM0/AS1A05_115T02_9000002906_19558cztM0_level2_quad_clean.evt
Size (bytes)522,066,24093,551,040
Size497.9 MB 89.2 MB
Events in quadrant A3,542,333596,048
Events in quadrant B3,669,279600,760
Events in quadrant C3,851,726567,289
Events in quadrant D4,247,006556,095

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151962
B0154062
C0157302
D0175872

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73671441.954663%
B73661782.416508%
C73661832.484388%
D73662363.203910%

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 7887 7367 0 0 0.00% 0.00%
B 7886 7366 1 1 0.01% 0.01%
C 7886 7366 0 0 0.00% 0.00%
D 7886 7366 97 97 1.23% 1.32%

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 15 191 11473 57.26 915 895 184.7
A 13 254 10848 53.88 915 895 184.7
A 0 226 7888 37.85 915 895 184.7
B 0 198 43573 246.81 904 880 173.0
B 7 220 42644 241.44 904 880 173.0
B 12 111 21369 118.45 904 880 173.0
C 3 233 277758 1372.37 868 875 201.8
C 14 238 135752 668.52 868 875 201.8
C 7 247 28940 139.1 868 875 201.8
D 12 233 520762 2439.17 878 853 213.2
D 7 238 208341 973.43 878 853 213.2
D 12 225 78990 366.58 878 853 213.2

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