ASTROSAT CZTI

Data Quality Report

Orbit 07455

Creation date: 2024-06-27T15:19:58.971203
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/AS1A02_108T01_9000001024_07455cztM0_level2.evt modeM0/AS1A02_108T01_9000001024_07455cztM0_level2_quad_clean.evt
Size (bytes)433,825,92091,365,120
Size413.7 MB 87.1 MB
Events in quadrant A3,063,521590,588
Events in quadrant B3,119,728601,219
Events in quadrant C2,975,264582,327
Events in quadrant D3,546,109547,569

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133323
B0134022
C0131702
D0146902

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6378490.768266%
B6378590.925055%
C6378210.329257%
D63781201.881468%

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 7643 6379 0 0 0.00% 0.00%
B 7643 6379 0 0 0.00% 0.00%
C 7643 6379 0 0 0.00% 0.00%
D 7643 6379 93 93 1.22% 1.46%

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 0 128 25712 157.11 786 771 158.7
A 13 14 8134 46.38 786 771 158.7
A 0 226 7487 42.31 786 771 158.7
B 0 214 15843 99.83 794 774 151.0
B 12 111 15227 95.74 794 774 151.0
B 11 111 12273 76.18 794 774 151.0
C 9 68 11952 63.59 758 764 175.9
C 13 61 5939 29.41 758 764 175.9
C 1 16 4853 23.24 758 764 175.9
D 2 14 353656 1929.5 748 727 182.9
D 12 221 174973 952.62 748 727 182.9
D 1 52 64613 349.27 748 727 182.9

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