ASTROSAT CZTI

Data Quality Report

Orbit 29170

Creation date: 2024-06-27T20:01:04.057333
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/AS1A10_099T01_9000004184_29170cztM0_level2.evt modeM0/AS1A10_099T01_9000004184_29170cztM0_level2_quad_clean.evt
Size (bytes)518,425,920101,880,000
Size494.4 MB 97.2 MB
Events in quadrant A3,408,989664,821
Events in quadrant B3,705,738677,011
Events in quadrant C3,452,288642,093
Events in quadrant D4,665,356621,113

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144782
B0153822
C0145102
D0186422

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6896841.218097%
B68971732.508337%
C68961382.001160%
D68963565.162413%

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 8736 6898 0 0 0.00% 0.00%
B 8737 6899 3 3 0.03% 0.04%
C 8736 6898 0 0 0.00% 0.00%
D 8736 6898 178 178 2.04% 2.58%

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 12719 66.49 882 866 178.3
A 3 137 8859 44.84 882 866 178.3
A 0 226 7455 36.96 882 866 178.3
B 0 190 112359 663.13 876 854 168.1
B 10 246 67673 397.38 876 854 168.1
B 0 183 55196 323.18 876 854 168.1
C 14 238 137595 693.79 842 848 197.1
C 2 114 16141 77.59 842 848 197.1
C 3 233 12820 60.74 842 848 197.1
D 1 52 1173622 5872.88 832 810 199.7
D 8 195 268255 1339.24 832 810 199.7
D 2 250 35380 173.11 832 810 199.7

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