ASTROSAT CZTI

Data Quality Report

Orbit 17692

Creation date: 2024-06-27T17:39:41.572634
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_186T02_9000002624_17692cztM0_level2.evt modeM0/AS1A05_186T02_9000002624_17692cztM0_level2_quad_clean.evt
Size (bytes)568,278,72087,552,000
Size542.0 MB 83.5 MB
Events in quadrant A3,806,532537,268
Events in quadrant B4,536,064540,193
Events in quadrant C4,015,160516,704
Events in quadrant D4,320,703511,932

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163322
B0184172
C0164892
D0180382

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78312162.758268%
B78314045.158984%
C78312853.639382%
D78312633.358447%

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 8036 7831 0 0 0.00% 0.00%
B 8036 7831 148 148 1.84% 1.89%
C 8036 7831 0 0 0.00% 0.00%
D 8036 7831 41 41 0.51% 0.52%

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 14 237 76521 380.54 971 949 198.6
A 0 226 8389 37.46 971 949 198.6
A 3 137 7376 32.36 971 949 198.6
B 10 245 548603 2982.71 952 930 183.6
B 7 220 80562 433.69 952 930 183.6
B 0 189 75636 406.86 952 930 183.6
C 3 233 223334 1028.28 922 925 216.3
C 14 238 140855 646.95 922 925 216.3
C 5 218 40377 182.4 922 925 216.3
D 1 52 621996 2687.29 942 913 231.1
D 2 234 36567 154.27 942 913 231.1
D 15 0 23357 97.11 942 913 231.1

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