ASTROSAT CZTI

Data Quality Report

Orbit 09692

Creation date: 2024-06-27T15:49:25.797146
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/AS1A03_068T01_9000001380_09692cztM0_level2.evt modeM0/AS1A03_068T01_9000001380_09692cztM0_level2_quad_clean.evt
Size (bytes)440,542,08091,468,800
Size420.1 MB 87.2 MB
Events in quadrant A3,162,527578,193
Events in quadrant B3,201,110587,210
Events in quadrant C3,245,821570,406
Events in quadrant D3,266,981557,346

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01422
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01412511
B01414818
C01447414
D01447814

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6843771.125237%
B68401051.535088%
C68411071.564099%
D6841711.037860%

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 8467 6849 0 0 0.00% 0.00%
B 8466 6845 0 0 0.00% 0.00%
C 8465 6847 15 15 0.18% 0.22%
D 8465 6847 5 5 0.06% 0.07%

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 7343 38.96 821 804 167.8
A 12 194 6720 35.25 821 804 167.8
A 3 137 3931 18.63 821 804 167.8
B 12 111 18703 111.88 823 802 160.0
B 11 111 15430 91.43 823 802 160.0
B 14 111 12142 70.88 823 802 160.0
C 14 234 123371 652.17 799 803 187.9
C 13 61 5881 27.02 799 803 187.9
C 14 67 3874 16.34 799 803 187.9
D 8 195 112713 554.31 794 773 201.9
D 1 52 58836 287.52 794 773 201.9
D 7 71 37241 180.58 794 773 201.9

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