ASTROSAT CZTI

Data Quality Report

Orbit 46463

Creation date: 2024-06-27T23:23:25.853397
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/AS1A13_037T01_9000006212_46463cztM0_level2.fits modeM0/AS1A13_037T01_9000006212_46463cztM0_level2_quad_clean.evt
Size (bytes)482,541,120109,192,320
Size460.2 MB 104.1 MB
Events in quadrant A6,275,665722,350
Events in quadrant B3,394,786748,901
Events in quadrant C3,273,979710,353
Events in quadrant D4,380,435642,794

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0228542
B0148892
C0148472
D0178722

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69163174.583574%
B69172373.426341%
C69172042.949255%
D69173314.785312%

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 7336 6918 1 1 0.01% 0.01%
B 7337 6920 26 26 0.35% 0.38%
C 7337 6920 48 48 0.65% 0.69%
D 7337 6919 148 148 2.02% 2.14%

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 3135180 19331.97 784 766 162.1
A 0 247 69184 421.98 784 766 162.1
A 13 254 12891 74.78 784 766 162.1
B 5 32 108556 695.82 781 756 154.9
B 5 172 80672 515.84 781 756 154.9
B 10 128 41814 265.02 781 756 154.9
C 12 2 208092 1141.26 769 769 181.7
C 3 233 31184 167.43 769 769 181.7
C 14 254 23331 124.2 769 769 181.7
D 1 52 453185 2323.22 768 740 194.7
D 12 233 386599 1981.32 768 740 194.7
D 2 249 203982 1043.61 768 740 194.7

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