ASTROSAT CZTI

Data Quality Report

Orbit 47247

Creation date: 2024-06-27T23:33:22.384110
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/AS1C09_005T01_9000006304_47247cztM0_level2.fits modeM0/AS1C09_005T01_9000006304_47247cztM0_level2_quad_clean.evt
Size (bytes)643,475,520123,698,880
Size613.7 MB 118.0 MB
Events in quadrant A9,420,864806,892
Events in quadrant B3,778,115853,321
Events in quadrant C3,794,044840,760
Events in quadrant D6,215,390695,970

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0336630
B0167970
C0172610
D0240165

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78885316.731744%
B78892042.585879%
C7889540.684497%
D788883510.585700%

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 7887 7887 136 136 1.72% 1.72%
B 7889 7889 31 31 0.39% 0.39%
C 7889 7889 14 14 0.18% 0.18%
D 7888 7888 748 748 9.48% 9.48%

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 10 83 3785699 21045.11 862 841 179.8
A 9 191 1485474 8255.07 862 841 179.8
A 15 235 796479 4424.02 862 841 179.8
B 0 200 149875 871.54 867 836 171.0
B 0 183 45161 259.2 867 836 171.0
B 0 190 33260 189.61 867 836 171.0
C 10 9 359625 1764.64 868 872 203.3
C 8 111 21162 99.8 868 872 203.3
C 14 254 18049 84.49 868 872 203.3
D 2 249 2540995 12305.16 829 802 206.4
D 12 1 212819 1027.05 829 802 206.4
D 1 47 83137 398.85 829 802 206.4

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