ASTROSAT CZTI

Data Quality Report

Orbit 47334

Creation date: 2024-06-29T13:24:46.001794
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_037T01_9000006318_47334cztM0_level2.fits modeM0/AS1A13_037T01_9000006318_47334cztM0_level2_quad_clean.evt
Size (bytes)618,376,320112,023,360
Size589.7 MB 106.8 MB
Events in quadrant A8,560,656731,700
Events in quadrant B3,478,042782,865
Events in quadrant C3,038,858736,787
Events in quadrant D7,260,153643,021

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0306000
B0153200
C0146181
D0264450

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71483825.344152%
B7148741.035255%
C714870.097929%
D71485417.568551%

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 7148 7148 16 16 0.22% 0.22%
B 7148 7148 4 4 0.06% 0.06%
C 7148 7148 2 2 0.03% 0.03%
D 7148 7148 387 387 5.41% 5.41%

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 3320472 20191.74 784 767 164.4
A 15 235 1905664 11586.33 784 767 164.4
A 9 191 266169 1614.28 784 767 164.4
B 5 255 145163 917.46 791 766 157.4
B 4 171 108363 683.64 791 766 157.4
B 5 32 26757 165.14 791 766 157.4
C 1 3 11564 58.7 773 776 183.8
C 6 247 7575 36.99 773 776 183.8
C 3 233 6130 29.13 773 776 183.8
D 6 112 2838279 14971.67 752 726 189.5
D 10 204 674737 3556.26 752 726 189.5
D 2 249 530635 2795.94 752 726 189.5

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