ASTROSAT CZTI

Data Quality Report

Orbit 22467

Creation date: 2024-06-27T18:41:30.440430
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/AS1A07_065T01_9000003338_22467cztM0_level2.evt modeM0/AS1A07_065T01_9000003338_22467cztM0_level2_quad_clean.evt
Size (bytes)466,191,360105,972,480
Size444.6 MB 101.1 MB
Events in quadrant A3,258,416690,467
Events in quadrant B3,486,611702,211
Events in quadrant C3,359,359673,691
Events in quadrant D3,543,618660,556

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142533
B0146612
C0144472
D0153182

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6928210.303118%
B6928320.461894%
C6928761.096998%
D6928440.635104%

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 7908 6929 0 0 0.00% 0.00%
B 7908 6929 0 0 0.00% 0.00%
C 7908 6929 9 9 0.11% 0.13%
D 7908 6929 21 21 0.27% 0.30%

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 9779 52.59 845 829 170.2
A 3 137 7422 38.74 845 829 170.2
A 0 226 7211 37.5 845 829 170.2
B 0 244 146109 903.2 847 827 160.9
B 12 111 19748 117.63 847 827 160.9
B 11 111 17593 104.23 847 827 160.9
C 14 238 130475 680.9 816 821 190.4
C 10 22 41383 213.02 816 821 190.4
C 0 10 6291 28.73 816 821 190.4
D 1 52 378857 1899.32 820 798 199.0
D 2 234 30430 148.87 820 798 199.0
D 13 172 18866 90.77 820 798 199.0

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