ASTROSAT CZTI

Data Quality Report

Orbit 13059

Creation date: 2024-06-27T16:35:53.759376
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/AS1G08_045T01_9000001920_13059cztM0_level2.evt modeM0/AS1G08_045T01_9000001920_13059cztM0_level2_quad_clean.evt
Size (bytes)631,252,80086,319,360
Size602.0 MB 82.3 MB
Events in quadrant A3,562,641570,309
Events in quadrant B7,789,501423,077
Events in quadrant C3,210,052582,485
Events in quadrant D4,077,498546,650

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151022
B0277911
C0144001
D0167571

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70381712.429668%
B7038219631.202046%
C70381261.790281%
D70382423.438477%

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 7445 7041 6 6 0.08% 0.09%
B 7445 7041 1454 1454 19.53% 20.65%
C 7445 7041 0 0 0.00% 0.00%
D 7445 7041 91 91 1.22% 1.29%

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 12 189 182080 1056.12 832 812 171.6
A 8 192 48400 277.26 832 812 171.6
A 15 223 44839 256.51 832 812 171.6
B 4 239 4709750 37033.58 664 647 127.2
B 0 85 182374 1429.15 664 647 127.2
B 3 64 140279 1098.1 664 647 127.2
C 3 248 7752 36.51 820 823 189.8
C 13 61 5850 26.49 820 823 189.8
C 12 4 3715 15.24 820 823 189.8
D 1 52 792220 4045.71 810 786 195.6
D 8 195 193795 986.64 810 786 195.6
D 2 234 22770 112.38 810 786 195.6

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