ASTROSAT CZTI

Data Quality Report

Orbit 47212

Creation date: 2024-06-27T23:32:55.181816
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_019T01_9000006302_47212cztM0_level2.fits modeM0/AS1A13_019T01_9000006302_47212cztM0_level2_quad_clean.evt
Size (bytes)606,723,840102,700,800
Size578.6 MB 97.9 MB
Events in quadrant A7,837,349681,854
Events in quadrant B3,318,514751,569
Events in quadrant C2,947,494717,425
Events in quadrant D7,856,424509,271

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0277575
B0140142
C0133302
D0277002

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64465498.516910%
B6446560.868756%
C6446120.186162%
D6446151223.456407%

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 7611 6446 455 455 5.98% 7.06%
B 7611 6446 19 19 0.25% 0.29%
C 7611 6447 3 3 0.04% 0.05%
D 7611 6446 1577 1577 20.72% 24.46%

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 3628142 24205.27 723 709 149.9
A 9 191 1384598 9234.47 723 709 149.9
A 15 235 31578 205.98 723 709 149.9
B 0 190 94750 645.3 745 723 145.7
B 0 200 94509 643.65 745 723 145.7
B 5 32 41386 279.07 745 723 145.7
C 14 254 80004 457.98 729 732 173.1
C 15 208 17089 94.5 729 732 173.1
C 3 233 5127 25.39 729 732 173.1
D 6 112 4963030 29238.77 665 643 169.7
D 5 171 145613 854.17 665 643 169.7
D 12 233 101215 592.58 665 643 169.7

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