ASTROSAT CZTI

Data Quality Report

Orbit 48118

Creation date: 2024-08-21T10:25:54.751371
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/AS1T05_223T01_9000006402_48118cztM0_level2.fits modeM0/AS1T05_223T01_9000006402_48118cztM0_level2_quad_clean.evt
Size (bytes)558,434,88093,464,640
Size532.6 MB 89.1 MB
Events in quadrant A7,597,666818,469
Events in quadrant B1,347,17799
Events in quadrant C3,305,745810,475
Events in quadrant D7,798,239650,163

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280940
B083580
C0158630
D0289200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7912640.808898%
B7913791299.987363%
C791220.025278%
D7912115014.534884%

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 7912 7912 16 16 0.20% 0.20%
B 7912 7912 0 0 0.00% 0.00%
C 7912 7912 0 0 0.00% 0.00%
D 7912 7912 1154 1154 14.59% 14.59%

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 4280543 24571.5 837 818 174.2
A 13 248 38002 213.49 837 818 174.2
A 0 31 25307 140.6 837 818 174.2
B 2 177 1092837 85873.2 53 52 12.7
B 4 21 19480 1526.69 53 52 12.7
B 5 255 7967 621.98 53 52 12.7
C 1 16 27027 132.41 833 834 197.8
C 14 254 10442 48.57 833 834 197.8
C 8 128 6760 29.96 833 834 197.8
D 7 67 2484451 12787.71 783 757 194.2
D 2 165 1171592 6028.24 783 757 194.2
D 11 224 529893 2724.34 783 757 194.2

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