ASTROSAT CZTI

Data Quality Report

Orbit 44313

Creation date: 2024-06-27T23:01:58.881297
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_004T13_9000005988_44313cztM0_level2.fits modeM0/AS1A13_004T13_9000005988_44313cztM0_level2_quad_clean.evt
Size (bytes)459,760,320113,676,480
Size438.5 MB 108.4 MB
Events in quadrant A5,411,145763,488
Events in quadrant B3,591,533789,861
Events in quadrant C3,092,396754,962
Events in quadrant D4,415,018676,892

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0214722
B0150162
C0136992
D0174092

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65483054.657911%
B65492003.053901%
C6549911.389525%
D65493755.726065%

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 8733 6549 70 70 0.80% 1.07%
B 8734 6550 46 46 0.53% 0.70%
C 8734 6550 7 7 0.08% 0.11%
D 8734 6549 240 240 2.75% 3.66%

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 1646068 10070.75 787 771 163.4
A 15 223 650949 3979.69 787 771 163.4
A 7 3 38516 231.03 787 771 163.4
B 5 172 149833 969.05 780 755 153.8
B 0 190 147155 951.64 780 755 153.8
B 5 255 55830 358.0 780 755 153.8
C 14 254 87906 484.15 766 768 180.0
C 1 3 10784 55.65 766 768 180.0
C 9 54 5772 27.8 766 768 180.0
D 13 249 612484 3255.64 760 738 187.9
D 5 235 166802 883.77 760 738 187.9
D 2 153 114038 602.97 760 738 187.9

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