ASTROSAT CZTI

Data Quality Report

Orbit 45448

Creation date: 2024-06-27T23:12:25.305556
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_041T15_9000006086_45448cztM0_level2.fits modeM0/AS1A13_041T15_9000006086_45448cztM0_level2_quad_clean.evt
Size (bytes)500,676,480116,349,120
Size477.5 MB 111.0 MB
Events in quadrant A6,281,188759,761
Events in quadrant B3,762,043794,652
Events in quadrant C3,501,328769,189
Events in quadrant D4,421,701690,209

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0238902
B0161692
C0158092
D0182742

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73072653.626659%
B73071712.340222%
C7307931.272752%
D73071662.271794%

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 9047 7310 46 46 0.51% 0.63%
B 9047 7310 49 49 0.54% 0.67%
C 9047 7310 37 37 0.41% 0.51%
D 9047 7310 101 101 1.12% 1.38%

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 3031047 17977.97 808 792 168.6
A 13 248 49077 286.47 808 792 168.6
A 0 243 46686 272.28 808 792 168.6
B 0 171 161712 986.46 819 794 163.1
B 5 172 133537 813.74 819 794 163.1
B 0 186 108505 660.29 819 794 163.1
C 14 96 158378 829.18 806 809 190.0
C 12 2 85660 446.51 806 809 190.0
C 14 254 59568 309.21 806 809 190.0
D 11 241 484695 2418.14 799 775 200.1
D 1 52 301865 1504.54 799 775 200.1
D 4 222 200655 998.8 799 775 200.1

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