ASTROSAT CZTI

Data Quality Report

Orbit 17384

Creation date: 2024-06-27T17:35:48.616224
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_074T02_9000002572_17384cztM0_level2.evt modeM0/AS1A05_074T02_9000002572_17384cztM0_level2_quad_clean.evt
Size (bytes)508,259,520105,765,120
Size484.7 MB 100.9 MB
Events in quadrant A3,198,298720,562
Events in quadrant B3,390,139726,853
Events in quadrant C3,179,357680,576
Events in quadrant D5,197,845635,869

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135171
B0141361
C0133391
D0195791

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62921091.732359%
B62921181.875397%
C62921021.621106%
D62935478.692198%

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 7592 6293 0 0 0.00% 0.00%
B 7592 6293 5 5 0.07% 0.08%
C 7592 6293 0 0 0.00% 0.00%
D 7593 6294 386 386 5.08% 6.13%

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 0 226 7546 40.93 829 815 164.4
A 12 194 6109 32.19 829 815 164.4
A 13 210 5810 30.38 829 815 164.4
B 7 220 78247 506.45 820 803 152.9
B 15 35 59557 384.23 820 803 152.9
B 0 189 32117 204.78 820 803 152.9
C 14 238 122020 680.27 773 779 178.2
C 5 218 27966 152.54 773 779 178.2
C 3 233 17025 91.15 773 779 178.2
D 13 232 927895 4989.66 768 748 185.8
D 11 176 803028 4317.66 768 748 185.8
D 10 70 347092 1863.93 768 748 185.8

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