ASTROSAT CZTI

Data Quality Report

Orbit 43736

Creation date: 2024-06-27T22:55:10.056510
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_003T01_9000005902_43736cztM0_level2.fits modeM0/AS1A13_003T01_9000005902_43736cztM0_level2_quad_clean.evt
Size (bytes)546,808,320112,536,000
Size521.5 MB 107.3 MB
Events in quadrant A4,375,689781,911
Events in quadrant B4,206,515792,993
Events in quadrant C3,814,026770,850
Events in quadrant D7,334,282603,315

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0173321
B0167521
C0154821
D0262847

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65802173.297872%
B65803585.440729%
C65801402.127660%
D6580120518.313070%

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 7675 6581 62 62 0.81% 0.94%
B 7675 6581 148 148 1.93% 2.25%
C 7675 6581 79 79 1.03% 1.20%
D 7675 6581 894 894 11.65% 13.58%

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 880926 5321.09 800 784 165.4
A 15 223 192763 1160.65 800 784 165.4
A 15 174 107304 643.99 800 784 165.4
B 5 235 475510 3108.77 780 757 152.7
B 0 200 267238 1744.97 780 757 152.7
B 5 172 116285 756.5 780 757 152.7
C 15 158 552477 3016.17 778 782 182.9
C 3 233 79609 430.95 778 782 182.9
C 15 173 45455 244.23 778 782 182.9
D 7 80 1995849 10603.62 731 708 188.2
D 5 235 689173 3659.0 731 708 188.2
D 1 52 554308 2942.23 731 708 188.2

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