ASTROSAT CZTI

Data Quality Report

Orbit 46361

Creation date: 2024-06-27T23:22:13.524845
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_070T05_9000006198_46361cztM0_level2.fits modeM0/AS1A13_070T05_9000006198_46361cztM0_level2_quad_clean.evt
Size (bytes)520,793,280102,591,360
Size496.7 MB 97.8 MB
Events in quadrant A7,683,023632,334
Events in quadrant B3,769,937706,556
Events in quadrant C3,059,922689,387
Events in quadrant D4,263,621626,752

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270841
B0156191
C0139071
D0172631

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A646587013.457077%
B64662483.835447%
C6466801.237241%
D64661852.861120%

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 7195 6466 500 500 6.95% 7.73%
B 7196 6467 91 91 1.26% 1.41%
C 7196 6467 25 25 0.35% 0.39%
D 7196 6467 73 73 1.01% 1.13%

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 3065343 21170.92 698 684 144.8
A 15 223 1593704 11004.71 698 684 144.8
A 13 248 237989 1639.32 698 684 144.8
B 5 172 338341 2383.14 714 694 141.7
B 5 255 164907 1159.03 714 694 141.7
B 3 112 120555 845.99 714 694 141.7
C 12 2 135477 791.44 717 721 170.3
C 14 254 95119 554.41 717 721 170.3
C 11 16 16665 93.64 717 721 170.3
D 1 52 993374 5516.25 715 693 180.0
D 5 235 87202 480.72 715 693 180.0
D 5 171 79963 440.5 715 693 180.0

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