ASTROSAT CZTI

Data Quality Report

Orbit 46422

Creation date: 2024-06-27T23:23:01.979747
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_033T03_9000006206_46422cztM0_level2.fits modeM0/AS1A13_033T03_9000006206_46422cztM0_level2_quad_clean.evt
Size (bytes)651,479,040131,794,560
Size621.3 MB 125.7 MB
Events in quadrant A7,118,120887,422
Events in quadrant B3,942,368914,003
Events in quadrant C3,771,390877,498
Events in quadrant D8,648,683741,571

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0262550
B0174580
C0169910
D0313720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A82051011.230957%
B8204590.719161%
C8205190.231566%
D820589710.932358%

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 8205 8205 0 0 0.00% 0.00%
B 8204 8204 11 11 0.13% 0.13%
C 8205 8205 1 1 0.01% 0.01%
D 8205 8205 637 637 7.76% 7.76%

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 10 83 3260265 16428.95 946 924 198.4
A 0 247 182463 915.06 946 924 198.4
A 0 226 17477 83.44 946 924 198.4
B 0 190 91791 483.38 944 912 188.0
B 0 245 38820 201.63 944 912 188.0
B 0 189 33608 173.91 944 912 188.0
C 9 54 71324 318.2 937 942 221.2
C 3 233 32680 143.49 937 942 221.2
C 1 3 8799 35.52 937 942 221.2
D 8 129 3295792 14554.46 902 874 226.4
D 13 249 1319446 5824.46 902 874 226.4
D 13 138 182213 801.02 902 874 226.4

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