ASTROSAT CZTI

Data Quality Report

Orbit 30949

Creation date: 2024-06-27T20:21:31.795451
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_058T10_9000004472_30949cztM0_level2.evt modeM0/AS1A10_058T10_9000004472_30949cztM0_level2_quad_clean.evt
Size (bytes)541,944,000103,181,760
Size516.8 MB 98.4 MB
Events in quadrant A3,242,699682,015
Events in quadrant B5,115,980687,164
Events in quadrant C3,637,560663,826
Events in quadrant D3,989,506651,881

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134762
B0194902
C0146562
D0158472

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6306470.745322%
B63061712.711703%
C63062123.361878%
D63061151.823660%

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 7526 6307 0 0 0.00% 0.00%
B 7526 6307 1 1 0.01% 0.02%
C 7526 6307 10 10 0.13% 0.16%
D 7526 6307 71 71 0.94% 1.13%

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 11178 61.99 838 825 167.0
A 3 243 7941 42.61 838 825 167.0
A 3 137 7879 42.24 838 825 167.0
B 6 159 1749385 11072.37 835 817 157.9
B 0 190 46761 290.93 835 817 157.9
B 0 183 24170 147.88 835 817 157.9
C 3 233 148310 773.53 815 824 190.7
C 14 238 145007 756.21 815 824 190.7
C 0 10 118645 617.95 815 824 190.7
D 8 195 349134 1794.93 820 802 194.1
D 15 47 277093 1423.71 820 802 194.1
D 2 250 117742 602.58 820 802 194.1

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