ASTROSAT CZTI

Data Quality Report

Orbit 44897

Creation date: 2024-06-27T23:07:46.572270
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_017T02_9000006032_44897cztM0_level2.fits modeM0/AS1A13_017T02_9000006032_44897cztM0_level2_quad_clean.evt
Size (bytes)613,854,720108,676,800
Size585.4 MB 103.6 MB
Events in quadrant A5,568,331745,097
Events in quadrant B3,966,520749,624
Events in quadrant C3,986,406745,261
Events in quadrant D8,675,209576,920

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0217081
B0163651
C0164341
D0305341

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67942603.826906%
B67943645.357669%
C67951792.634290%
D6795141620.838852%

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 7474 6795 15 15 0.20% 0.22%
B 7474 6795 74 74 0.99% 1.09%
C 7475 6796 27 27 0.36% 0.40%
D 7475 6796 1083 1083 14.49% 15.94%

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 2372905 14261.12 794 777 166.3
A 10 248 63995 380.06 794 777 166.3
A 13 248 35007 205.79 794 777 166.3
B 5 255 172068 1093.22 789 764 156.7
B 0 190 126716 803.8 789 764 156.7
B 15 36 120643 765.04 789 764 156.7
C 9 54 744905 4001.6 787 792 186.0
C 1 3 69013 366.87 787 792 186.0
C 14 254 44464 234.85 787 792 186.0
D 13 187 2154444 11575.82 734 713 186.1
D 1 52 1365637 7336.16 734 713 186.1
D 5 235 609426 3271.69 734 713 186.1

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