ASTROSAT CZTI

Data Quality Report

Orbit 14323

Creation date: 2024-06-27T16:53:30.444526
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_078T01_9000002110_14323cztM0_level2.evt modeM0/AS1G08_078T01_9000002110_14323cztM0_level2_quad_clean.evt
Size (bytes)1,285,536,960242,233,920
Size1.2 GB 231.0 MB
Events in quadrant A8,666,3841,542,947
Events in quadrant B9,380,8351,535,712
Events in quadrant C9,427,7911,517,797
Events in quadrant D10,222,0021,480,661

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03720
B03720
C03720
D03720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0376104
B0398273
C0384233
D0424693

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A18282840.459468%
B182822021.104912%
C18282990.541516%
D182822491.361995%

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 20198 18286 1 1 0.00% 0.01%
B 20198 18286 31 31 0.15% 0.17%
C 20198 18286 5 5 0.02% 0.03%
D 20198 18286 132 132 0.65% 0.72%

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 174150 392.52 2173 2127 438.3
A 8 15 103658 231.67 2173 2127 438.3
A 0 226 19058 38.63 2173 2127 438.3
B 0 219 228541 543.74 2167 2113 416.4
B 0 229 186431 442.62 2167 2113 416.4
B 10 245 94639 222.19 2167 2113 416.4
C 3 233 1170861 2379.21 2109 2122 491.2
C 10 22 24222 44.99 2109 2122 491.2
C 13 61 14886 25.98 2109 2122 491.2
D 5 222 488951 977.71 2099 2051 498.0
D 12 110 456117 911.78 2099 2051 498.0
D 1 52 376210 751.32 2099 2051 498.0

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