ASTROSAT CZTI

Data Quality Report

Orbit 30019

Creation date: 2024-06-27T20:09:57.366415
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_071T03_9000004314_30019cztM0_level2.evt modeM0/AS1A10_071T03_9000004314_30019cztM0_level2_quad_clean.evt
Size (bytes)525,640,32078,131,520
Size501.3 MB 74.5 MB
Events in quadrant A3,260,473495,533
Events in quadrant B4,953,438501,236
Events in quadrant C3,239,992471,879
Events in quadrant D4,040,433459,628

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133242
B0190933
C0133012
D0160012

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6269370.590206%
B6268841.340140%
C6268681.084876%
D62681352.153797%

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 7449 6270 3 3 0.04% 0.05%
B 7448 6269 1 1 0.01% 0.02%
C 7448 6269 0 0 0.00% 0.00%
D 7448 6269 102 102 1.37% 1.63%

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 8 192 21752 126.12 835 821 166.0
A 5 203 16908 96.93 835 821 166.0
A 13 254 11696 65.53 835 821 166.0
B 6 159 1681060 10692.48 826 807 157.1
B 12 111 19554 119.3 826 807 157.1
B 10 247 18270 111.13 826 807 157.1
C 14 238 134241 724.24 789 795 184.3
C 2 114 14548 74.64 789 795 184.3
C 14 254 8782 43.35 789 795 184.3
D 7 80 807575 4353.96 782 765 185.3
D 8 195 136939 734.86 782 765 185.3
D 7 223 120585 646.61 782 765 185.3

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