ASTROSAT CZTI

Data Quality Report

Orbit 46406

Creation date: 2024-06-27T23:22:48.628105
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_070T04_9000006204_46406cztM0_level2.fits modeM0/AS1A13_070T04_9000006204_46406cztM0_level2_quad_clean.evt
Size (bytes)483,975,360115,873,920
Size461.6 MB 110.5 MB
Events in quadrant A6,467,846776,967
Events in quadrant B3,696,224797,417
Events in quadrant C3,544,762743,831
Events in quadrant D3,648,683689,818

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0242540
B0160292
C0158850
D0161500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7184871.211024%
B7183811.127663%
C71851381.920668%
D71851061.475296%

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 7184 7184 9 9 0.13% 0.13%
B 7184 7184 43 43 0.60% 0.60%
C 7185 7185 92 92 1.28% 1.28%
D 7185 7185 69 69 0.96% 0.96%

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 3291207 19717.7 797 779 166.9
A 13 248 69251 410.31 797 779 166.9
A 13 254 12851 72.34 797 779 166.9
B 5 172 264994 1681.11 796 768 157.2
B 2 2 78918 497.22 796 768 157.2
B 0 155 52271 327.68 796 768 157.2
C 14 254 408795 2201.78 780 781 185.3
C 12 2 36450 192.48 780 781 185.3
C 3 233 27371 143.49 780 781 185.3
D 5 235 171079 868.16 784 760 196.2
D 2 37 94132 475.94 784 760 196.2
D 12 233 84204 425.34 784 760 196.2

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