ASTROSAT CZTI

Data Quality Report

Orbit 45565

Creation date: 2024-06-27T23:13:43.049078
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_071T04_9000006110_45565cztM0_level2.fits modeM0/AS1A13_071T04_9000006110_45565cztM0_level2_quad_clean.evt
Size (bytes)538,830,720124,107,840
Size513.9 MB 118.4 MB
Events in quadrant A6,330,459830,170
Events in quadrant B4,188,452847,675
Events in quadrant C3,407,463814,921
Events in quadrant D5,423,550730,381

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0242550
B0178130
C0159420
D0215720

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76851812.355237%
B76841952.537741%
C7684210.273295%
D76842723.539823%

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 7685 7685 3 3 0.04% 0.04%
B 7684 7684 59 59 0.77% 0.77%
C 7684 7684 8 8 0.10% 0.10%
D 7684 7684 206 206 2.68% 2.68%

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 2957178 16547.12 861 840 178.7
A 10 248 19100 102.2 861 840 178.7
A 2 79 11387 59.03 861 840 178.7
B 15 201 360817 2141.86 859 832 168.1
B 5 172 116500 688.21 859 832 168.1
B 4 171 67748 398.14 859 832 168.1
C 14 254 65069 326.63 842 845 196.6
C 12 2 26411 130.02 842 845 196.6
C 1 3 23734 116.41 842 845 196.6
D 1 52 707234 3362.45 836 808 210.1
D 5 171 530036 2519.02 836 808 210.1
D 11 241 356717 1694.06 836 808 210.1

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