ASTROSAT CZTI

Data Quality Report

Orbit 11343

Creation date: 2024-06-27T16:11:35.155873
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_9000001660_11343cztM0_level2.evt modeM0/AS1G08_062T01_9000001660_11343cztM0_level2_quad_clean.evt
Size (bytes)622,906,56090,552,960
Size594.0 MB 86.4 MB
Events in quadrant A4,575,174592,883
Events in quadrant B4,790,945581,054
Events in quadrant C2,885,634598,655
Events in quadrant D6,177,340520,194

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0178772
B0185291
C0131001
D0227101

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64382644.100652%
B64385007.766387%
C6438430.667909%
D643886813.482448%

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 7503 6439 146 146 1.95% 2.27%
B 7503 6439 298 298 3.97% 4.63%
C 7503 6439 0 0 0.00% 0.00%
D 7503 6439 647 647 8.62% 10.05%

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 13 251 1451905 9505.45 753 738 152.7
A 8 5 133928 872.42 753 738 152.7
A 15 174 26603 169.42 753 738 152.7
B 4 239 1439148 10151.52 739 722 141.7
B 3 64 285296 2008.34 739 722 141.7
B 0 214 49247 342.46 739 722 141.7
C 13 250 12040 66.38 737 739 170.3
C 13 61 5255 26.52 737 739 170.3
C 3 202 1844 6.49 737 739 170.3
D 1 52 1593399 9721.02 681 663 163.8
D 13 152 634294 3867.27 681 663 163.8
D 10 253 486992 2968.23 681 663 163.8

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