ASTROSAT CZTI

Data Quality Report

Orbit 18607

Creation date: 2024-06-27T17:52:15.460808
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_104T03_9000002770_18607cztM0_level2.evt modeM0/AS1A05_104T03_9000002770_18607cztM0_level2_quad_clean.evt
Size (bytes)150,128,64035,084,160
Size143.2 MB 33.5 MB
Events in quadrant A892,347232,604
Events in quadrant B917,741238,807
Events in quadrant C1,063,765231,030
Events in quadrant D1,540,125219,912

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040811
B041041
C045291
D059351

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A19141176.112853%
B19141306.792059%
C19141749.090909%
D191521111.018277%

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 2099 1915 1 1 0.05% 0.05%
B 2099 1915 0 0 0.00% 0.00%
C 2099 1915 49 49 2.33% 2.56%
D 2100 1916 115 115 5.48% 6.00%

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 9 143 5610 109.27 229 223 49.3
A 13 254 2952 55.35 229 223 49.3
A 3 137 1969 35.41 229 223 49.3
B 0 229 14626 308.2 230 223 46.7
B 12 111 5723 117.68 230 223 46.7
B 11 111 4991 102.02 230 223 46.7
C 3 233 163439 3033.8 219 220 53.8
C 14 238 33460 617.84 219 220 53.8
C 9 54 9703 176.26 219 220 53.8
D 7 238 438956 8004.72 218 211 54.8
D 1 52 216418 3944.61 218 211 54.8
D 7 96 48408 879.33 218 211 54.8

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