ASTROSAT CZTI

Data Quality Report

Orbit 30183

Creation date: 2024-06-27T20:11:56.968264
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_102T01_9000004340_30183cztM0_level2.evt modeM0/AS1A10_102T01_9000004340_30183cztM0_level2_quad_clean.evt
Size (bytes)918,426,24068,855,040
Size875.9 MB 65.7 MB
Events in quadrant A3,433,086443,488
Events in quadrant B5,323,150444,630
Events in quadrant C14,586,108300,379
Events in quadrant D4,007,479415,470

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143122
B0209092
C0480522
D0162862

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68801101.598837%
B68802012.921512%
C6881537578.113646%
D68811872.717628%

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 7660 6880 0 0 0.00% 0.00%
B 7660 6880 3 3 0.04% 0.04%
C 7661 6881 4328 4328 56.49% 62.90%
D 7661 6882 87 87 1.14% 1.26%

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 11238 57.99 888 869 178.8
A 8 192 10911 56.16 888 869 178.8
A 3 137 8841 44.58 888 869 178.8
B 6 159 1852386 10801.06 878 858 171.4
B 12 111 21630 121.18 878 858 171.4
B 11 111 19718 110.02 878 858 171.4
C 3 233 11958848 79469.99 641 644 150.5
C 14 238 100523 663.76 641 644 150.5
C 2 114 12444 78.42 641 644 150.5
D 1 52 365946 1809.9 843 825 201.7
D 8 195 193623 955.7 843 825 201.7
D 13 104 138011 680.03 843 825 201.7

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