ASTROSAT CZTI

Data Quality Report

Orbit 13763

Creation date: 2024-06-27T16:45:45.298205
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/AS1G08_062T01_9000002038_13763cztM0_level2.evt modeM0/AS1G08_062T01_9000002038_13763cztM0_level2_quad_clean.evt
Size (bytes)482,230,080109,851,840
Size459.9 MB 104.8 MB
Events in quadrant A3,449,895714,244
Events in quadrant B3,500,803713,428
Events in quadrant C3,288,846750,055
Events in quadrant D3,933,195705,646

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143843
B0147552
C0138512
D0158592

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6355961.510622%
B6355771.211644%
C6355250.393391%
D63551892.974036%

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 7581 6357 45 45 0.59% 0.71%
B 7581 6357 7 7 0.09% 0.11%
C 7581 6357 0 0 0.00% 0.00%
D 7581 6357 114 114 1.50% 1.79%

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 9 143 259989 1576.9 816 800 164.4
A 1 162 18307 106.51 816 800 164.4
A 0 23 13329 76.23 816 800 164.4
B 0 219 152653 985.41 821 804 154.1
B 4 142 30682 193.89 821 804 154.1
B 0 189 27685 174.44 821 804 154.1
C 3 233 98770 515.21 816 824 190.1
C 12 4 10097 48.78 816 824 190.1
C 13 61 5750 25.91 816 824 190.1
D 5 222 487653 2495.17 801 778 195.1
D 13 249 148390 756.49 801 778 195.1
D 10 157 124716 635.17 801 778 195.1

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