ASTROSAT CZTI

Data Quality Report

Orbit 44378

Creation date: 2024-06-27T23:02:52.293136
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_008T05_9000005996_44378cztM0_level2.fits modeM0/AS1A13_008T05_9000005996_44378cztM0_level2_quad_clean.evt
Size (bytes)676,546,560119,050,560
Size645.2 MB 113.5 MB
Events in quadrant A5,901,328831,444
Events in quadrant B3,904,871853,359
Events in quadrant C4,921,397752,588
Events in quadrant D9,706,360619,780

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0241091
B0170472
C0203121
D0343166

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78671732.199059%
B78671141.449091%
C78676137.792043%
D7865166821.207883%

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 7892 7868 69 69 0.87% 0.88%
B 7892 7868 30 30 0.38% 0.38%
C 7892 7867 524 524 6.64% 6.66%
D 7892 7866 1678 1678 21.26% 21.33%

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 1774074 9507.53 886 867 186.5
A 15 223 592706 3173.3 886 867 186.5
A 13 248 44470 233.79 886 867 186.5
B 5 172 106661 598.82 889 864 176.7
B 0 190 68338 381.91 889 864 176.7
B 0 183 41708 231.18 889 864 176.7
C 15 158 1182844 5960.47 831 835 198.3
C 14 254 315426 1586.38 831 835 198.3
C 2 14 127191 637.17 831 835 198.3
D 1 52 2826228 13670.42 808 782 206.7
D 13 249 1014832 4906.3 808 782 206.7
D 12 2 882490 4265.99 808 782 206.7

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