ASTROSAT CZTI

Data Quality Report

Orbit 06235

Creation date: 2024-06-27T15:04:32.216095
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/AS1A02_151T01_9000000818_06235cztM0_level2.evt modeM0/AS1A02_151T01_9000000818_06235cztM0_level2_quad_clean.evt
Size (bytes)451,589,76065,643,840
Size430.7 MB 62.6 MB
Events in quadrant A3,253,808383,802
Events in quadrant B3,589,416383,191
Events in quadrant C2,995,221387,378
Events in quadrant D3,390,837374,468

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139513
B0149482
C0134862
D0142902

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6576981.490268%
B65761642.493917%
C6576430.653893%
D6576620.942822%

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 7656 6576 28 28 0.37% 0.43%
B 7656 6576 69 69 0.90% 1.05%
C 7656 6576 0 0 0.00% 0.00%
D 7656 6576 6 6 0.08% 0.09%

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 15 239 83415 520.39 779 762 158.8
A 15 236 72136 449.37 779 762 158.8
A 8 15 71709 446.69 779 762 158.8
B 3 64 437037 2914.88 782 764 149.7
B 0 219 48707 320.32 782 764 149.7
B 4 81 30949 201.68 782 764 149.7
C 13 61 5974 29.26 767 772 177.8
C 8 222 1971 6.74 767 772 177.8
C 3 202 1940 6.57 767 772 177.8
D 11 241 258317 1391.33 764 740 185.1
D 2 63 153549 825.42 764 740 185.1
D 14 173 29160 153.51 764 740 185.1

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