ASTROSAT CZTI

Data Quality Report

Orbit 14311

Creation date: 2024-06-27T16:53:21.611138
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_14311cztM0_level2.evt modeM0/AS1G08_078T01_9000002110_14311cztM0_level2_quad_clean.evt
Size (bytes)466,076,16091,771,200
Size444.5 MB 87.5 MB
Events in quadrant A3,304,434588,533
Events in quadrant B3,466,348595,523
Events in quadrant C3,561,707579,917
Events in quadrant D3,344,905565,635

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137833
B0144942
C0143482
D0142652

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6448380.589330%
B64481011.566377%
C6448360.558313%
D6448420.651365%

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 7589 6450 0 0 0.00% 0.00%
B 7589 6449 27 27 0.36% 0.42%
C 7589 6450 8 8 0.11% 0.12%
D 7589 6450 13 13 0.17% 0.20%

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 136899 840.75 796 779 161.9
A 8 15 54692 332.99 796 779 161.9
A 9 143 52649 320.37 796 779 161.9
B 0 229 242951 1613.93 794 777 150.1
B 0 189 46353 303.73 794 777 150.1
B 4 48 37106 242.11 794 777 150.1
C 3 233 409327 2265.98 773 778 180.3
C 14 220 140664 775.86 773 778 180.3
C 13 61 5520 26.3 773 778 180.3
D 5 222 357444 1944.09 769 753 183.5
D 12 110 27876 147.83 769 753 183.5
D 2 234 21139 111.11 769 753 183.5

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