ASTROSAT CZTI

Data Quality Report

Orbit 34432

Creation date: 2022-02-09T15:46:54.138320
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/AS1A10_058T05_9000004918_34432cztM0_level2.evt modeM0/AS1A10_058T05_9000004918_34432cztM0_level2_quad_clean.evt
Size (bytes)433,468,80057,591,360
Size413.4 MB 54.9 MB
Events in quadrant A2,484,001349,692
Events in quadrant B3,390,223352,378
Events in quadrant C2,734,599347,319
Events in quadrant D4,162,879326,924

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106342
B0132841
C0110191
D0161561

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A523950.095438%
B52393055.821722%
C5239180.343577%
D52391092.080550%

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 6943 5240 0 0 0.00% 0.00%
B 6943 5240 228 228 3.28% 4.35%
C 6943 5240 12 12 0.17% 0.23%
D 6943 5240 98 98 1.41% 1.87%

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 24304 186.52 632 621 127.0
A 13 6 18020 137.03 632 621 127.0
A 13 254 8068 58.65 632 621 127.0
B 5 172 813628 6908.62 610 593 117.7
B 0 190 92362 779.79 610 593 117.7
B 4 232 30388 253.18 610 593 117.7
C 15 214 219578 1534.86 615 622 142.7
C 0 10 50027 346.32 615 622 142.7
C 14 67 44817 309.8 615 622 142.7
D 8 195 753493 4973.95 614 597 151.4
D 7 223 332701 2194.02 614 597 151.4
D 2 250 195326 1286.46 614 597 151.4

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