ASTROSAT CZTI

Data Quality Report

Orbit 06967

Creation date: 2024-06-27T15:13:52.093583
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/AS1A02_090T02_9000000956_06967cztM0_level2.evt modeM0/AS1A02_090T02_9000000956_06967cztM0_level2_quad_clean.evt
Size (bytes)528,454,08086,132,160
Size504.0 MB 82.1 MB
Events in quadrant A3,653,045520,345
Events in quadrant B3,908,348525,930
Events in quadrant C3,504,903524,685
Events in quadrant D4,418,234504,752

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160283
B0169302
C0158702
D0179862

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7658941.227475%
B76581922.507182%
C7658690.901019%
D76581702.219901%

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 8168 7661 0 0 0.00% 0.00%
B 8168 7661 22 22 0.27% 0.29%
C 8168 7661 0 0 0.00% 0.00%
D 8168 7661 24 24 0.29% 0.31%

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 14 99751 519.95 915 892 190.1
A 6 254 17665 88.22 915 892 190.1
A 13 248 9738 46.53 915 892 190.1
B 0 228 188292 1055.61 918 895 177.5
B 0 189 67241 373.73 918 895 177.5
B 0 197 29750 162.54 918 895 177.5
C 1 16 12445 54.96 892 894 210.2
C 13 61 6973 28.92 892 894 210.2
C 12 4 4945 19.28 892 894 210.2
D 8 195 644860 2943.5 889 861 218.8
D 14 34 97840 443.26 889 861 218.8
D 2 136 89829 406.64 889 861 218.8

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