ASTROSAT CZTI

Data Quality Report

Orbit 42711

Creation date: 2024-06-27T22:43:20.529188
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/AS1A05_013T01_9000005822_42711cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42711cztM0_level2_quad_clean.evt
Size (bytes)363,412,80096,952,320
Size346.6 MB 92.5 MB
Events in quadrant A3,252,642651,321
Events in quadrant B2,717,717657,751
Events in quadrant C3,108,177635,119
Events in quadrant D3,915,296579,668

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130472
B0121202
C0129342
D0156052

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5891200.339501%
B5891130.220676%
C5891410.695977%
D58911412.393482%

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 7204 5892 11 11 0.15% 0.19%
B 7204 5892 11 11 0.15% 0.19%
C 7204 5892 37 37 0.51% 0.63%
D 7204 5892 130 130 1.80% 2.21%

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 641073 4749.88 651 635 134.8
A 13 248 64210 471.51 651 635 134.8
A 15 237 23752 171.45 651 635 134.8
B 15 32 41605 325.88 642 624 125.8
B 0 229 37076 289.87 642 624 125.8
B 5 255 32397 252.66 642 624 125.8
C 4 254 367168 2500.28 629 634 146.6
C 15 214 246171 1674.91 629 634 146.6
C 3 233 25482 169.5 629 634 146.6
D 2 249 762223 4892.04 631 611 155.7
D 1 47 174027 1113.9 631 611 155.7
D 1 52 140602 899.2 631 611 155.7

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