ASTROSAT CZTI

Data Quality Report

Orbit 47098

Creation date: 2024-06-27T23:31:41.905821
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/AS1C09_003T01_9000006298_47098cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47098cztM0_level2_quad_clean.evt
Size (bytes)428,564,16099,809,280
Size408.7 MB 95.2 MB
Events in quadrant A6,345,322654,881
Events in quadrant B3,389,032689,183
Events in quadrant C2,736,851654,738
Events in quadrant D2,931,042607,933

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230651
B0140461
C0125341
D0129861

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59433866.495036%
B59441672.809556%
C5944360.605653%
D5944490.824361%

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 7133 5944 234 234 3.28% 3.94%
B 7134 5945 84 84 1.18% 1.41%
C 7134 5945 20 20 0.28% 0.34%
D 7134 5945 21 21 0.29% 0.35%

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 3159588 23081.2 664 650 136.9
A 9 191 478158 3488.98 664 650 136.9
A 14 248 98575 715.5 664 650 136.9
B 5 32 560684 4348.49 664 644 128.8
B 0 200 122987 949.94 664 644 128.8
B 12 111 16188 120.69 664 644 128.8
C 14 254 191041 1256.65 646 650 151.5
C 12 249 17719 112.66 646 650 151.5
C 3 233 5717 33.44 646 650 151.5
D 2 249 113070 698.76 652 631 160.9
D 12 3 74732 460.51 652 631 160.9
D 12 233 68330 420.72 652 631 160.9

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