ASTROSAT CZTI

Data Quality Report

Orbit 24602

Creation date: 2024-06-27T19:07:47.327786
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/AS1T03_189T01_9000003614_24602cztM0_level2.evt modeM0/AS1T03_189T01_9000003614_24602cztM0_level2_quad_clean.evt
Size (bytes)569,439,36072,357,120
Size543.1 MB 69.0 MB
Events in quadrant A3,295,445441,403
Events in quadrant B3,427,318447,393
Events in quadrant C5,938,438417,710
Events in quadrant D4,131,319417,961

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138412
B0142682
C0222482
D0170122

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6689941.405292%
B66891251.868740%
C66893385.053072%
D6689841.255793%

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 7644 6689 0 0 0.00% 0.00%
B 7644 6689 12 12 0.16% 0.18%
C 7644 6689 50 50 0.65% 0.75%
D 7644 6689 2 2 0.03% 0.03%

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 96 9681 52.08 850 832 169.9
A 13 254 8953 47.8 850 832 169.9
A 6 16 8155 43.1 850 832 169.9
B 3 64 131059 806.44 839 815 161.5
B 12 111 20339 120.89 839 815 161.5
B 11 111 18396 108.86 839 815 161.5
C 7 247 2678926 14394.87 797 804 186.0
C 14 238 126265 674.35 797 804 186.0
C 0 239 17830 91.51 797 804 186.0
D 13 104 899640 4529.99 818 791 198.4
D 1 52 77736 387.78 818 791 198.4
D 8 195 46750 231.62 818 791 198.4

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