ASTROSAT CZTI

Data Quality Report

Orbit 29283

Creation date: 2024-06-27T20:02:19.844893
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/AS1A10_021T10_9000004210_29283cztM0_level2.evt modeM0/AS1A10_021T10_9000004210_29283cztM0_level2_quad_clean.evt
Size (bytes)574,833,60099,826,560
Size548.2 MB 95.2 MB
Events in quadrant A3,084,322684,083
Events in quadrant B3,872,509684,783
Events in quadrant C3,579,539637,831
Events in quadrant D6,475,774606,473

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125681
B0152081
C0146501
D0235041

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5860520.887372%
B58611442.456919%
C58612053.497697%
D586179213.513052%

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 7155 5861 0 0 0.00% 0.00%
B 7156 5862 53 53 0.74% 0.90%
C 7156 5862 0 0 0.00% 0.00%
D 7156 5862 661 661 9.24% 11.28%

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 13 254 12077 71.8 799 786 157.3
A 0 226 6963 39.28 799 786 157.3
A 3 137 6770 38.05 799 786 157.3
B 0 229 342641 2426.07 772 757 140.9
B 0 183 261348 1849.2 772 757 140.9
B 10 246 126776 894.25 772 757 140.9
C 3 233 439210 2593.89 741 746 169.0
C 14 238 168379 991.69 741 746 169.0
C 14 254 70688 413.77 741 746 169.0
D 1 52 1575641 9075.82 740 722 173.5
D 8 195 1529932 8812.41 740 722 173.5
D 12 233 215840 1239.67 740 722 173.5

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