ASTROSAT CZTI

Data Quality Report

Orbit 34006

Creation date: 2024-06-27T20:55:17.838719
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/AS1A11_106T03_9000004864_34006cztM0_level2.evt modeM0/AS1A11_106T03_9000004864_34006cztM0_level2_quad_clean.evt
Size (bytes)498,804,48065,044,800
Size475.7 MB 62.0 MB
Events in quadrant A2,620,855408,590
Events in quadrant B2,996,147406,528
Events in quadrant C4,076,479379,796
Events in quadrant D5,029,827379,135

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114193
B0124662
C0154352
D0187872

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5648110.194759%
B5648380.672805%
C56483265.771955%
D56482835.010623%

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 7230 5649 3 3 0.04% 0.05%
B 7230 5649 28 28 0.39% 0.50%
C 7230 5649 314 314 4.34% 5.56%
D 7230 5649 236 236 3.26% 4.18%

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 13 6 20555 149.37 663 648 133.3
A 10 83 18050 130.57 663 648 133.3
A 0 31 17881 129.31 663 648 133.3
B 5 172 138241 1107.75 659 644 124.2
B 0 190 127843 1024.04 659 644 124.2
B 0 189 58584 466.46 659 644 124.2
C 4 254 969230 6707.76 625 628 144.4
C 15 214 242808 1677.14 625 628 144.4
C 0 10 185082 1277.38 625 628 144.4
D 8 195 1390925 8308.67 630 616 167.3
D 13 249 324836 1937.58 630 616 167.3
D 12 6 164270 978.02 630 616 167.3

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