ASTROSAT CZTI

Data Quality Report

Orbit 47002

Creation date: 2024-06-27T23:30:36.172244
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_006T01_9000006294_47002cztM0_level2.fits modeM0/AS1C09_006T01_9000006294_47002cztM0_level2_quad_clean.evt
Size (bytes)888,125,76095,192,640
Size847.0 MB 90.8 MB
Events in quadrant A6,695,826770,647
Events in quadrant B16,546,489168,244
Events in quadrant C3,259,730765,625
Events in quadrant D5,807,448668,516

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0245050
B0541710
C0152990
D0224860

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73051381.889117%
B7305609583.436003%
C7305230.314853%
D73065277.213249%

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 7305 7305 1 1 0.01% 0.01%
B 7305 7305 5733 5733 78.48% 78.48%
C 7305 7305 16 16 0.22% 0.22%
D 7306 7306 477 477 6.53% 6.53%

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 3491539 20766.88 804 784 168.1
A 9 191 55676 326.56 804 784 168.1
A 13 248 12529 69.87 804 784 168.1
B 3 112 14399435 143170.72 503 488 100.6
B 4 171 117462 1163.09 503 488 100.6
B 0 200 22036 214.25 503 488 100.6
C 14 254 110916 583.59 799 803 188.7
C 1 3 16455 82.95 799 803 188.7
C 12 249 6307 29.17 799 803 188.7
D 1 52 1312832 6648.71 774 750 197.3
D 13 249 1185254 6002.24 774 750 197.3
D 12 218 115934 583.67 774 750 197.3

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