ASTROSAT CZTI

Data Quality Report

Orbit 47371

Creation date: 2024-07-02T01:33:52.315092
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_093T25_9000006324_47371cztM0_level2.fits modeM0/AS1A13_093T25_9000006324_47371cztM0_level2_quad_clean.evt
Size (bytes)538,914,240105,932,160
Size513.9 MB 101.0 MB
Events in quadrant A7,330,690702,775
Events in quadrant B3,671,125739,927
Events in quadrant C2,956,167706,290
Events in quadrant D5,485,505603,578

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0263732
B0153082
C0134782
D0208378

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65224026.163753%
B65221352.069917%
C6522310.475314%
D65216429.845116%

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 7597 6522 123 123 1.62% 1.89%
B 7597 6522 46 46 0.61% 0.71%
C 7597 6523 2 2 0.03% 0.03%
D 7596 6521 497 497 6.54% 7.62%

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 3829766 24749.6 741 726 154.7
A 9 191 501899 3239.41 741 726 154.7
A 9 240 113034 725.92 741 726 154.7
B 4 171 241966 1621.18 746 723 148.8
B 0 200 186969 1251.6 746 723 148.8
B 0 190 172767 1156.16 746 723 148.8
C 3 233 70728 403.61 731 736 173.4
C 0 207 14073 76.91 731 736 173.4
C 1 3 7831 40.91 731 736 173.4
D 12 2 1239706 7078.07 702 679 175.1
D 2 165 1171896 6690.7 702 679 175.1
D 2 249 158551 901.86 702 679 175.1

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