ASTROSAT CZTI

Data Quality Report

Orbit 38597

Creation date: 2024-06-27T21:53:54.915954
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/AS1A12_052T04_9000005388_38597cztM0_level2.fits modeM0/AS1A12_052T04_9000005388_38597cztM0_level2_quad_clean.evt
Size (bytes)399,585,60095,397,120
Size381.1 MB 91.0 MB
Events in quadrant A3,015,837657,975
Events in quadrant B4,915,445606,452
Events in quadrant C2,848,217635,116
Events in quadrant D3,562,483585,191

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124722
B0183501
C0121291
D0144571

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5774170.294423%
B577468111.794250%
C5774130.225147%
D5774701.212331%

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 7115 5775 10 10 0.14% 0.17%
B 7115 5775 545 545 7.66% 9.44%
C 7115 5775 11 11 0.15% 0.19%
D 7115 5775 87 87 1.22% 1.51%

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 437880 3333.28 645 635 131.2
A 13 248 37710 282.64 645 635 131.2
A 9 143 20840 154.03 645 635 131.2
B 5 184 1725078 14358.36 617 600 120.1
B 5 200 218919 1817.77 617 600 120.1
B 4 251 160127 1328.25 617 600 120.1
C 15 214 236227 1619.46 622 625 145.5
C 14 254 78393 534.56 622 625 145.5
C 15 159 52162 354.25 622 625 145.5
D 12 235 441552 2900.67 622 604 152.0
D 1 47 215476 1413.48 622 604 152.0
D 12 227 103050 673.92 622 604 152.0

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