ASTROSAT CZTI

Data Quality Report

Orbit 14129

Creation date: 2024-06-27T16:50:57.937089
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_033T01_9000002084_14129cztM0_level2.evt modeM0/AS1G08_033T01_9000002084_14129cztM0_level2_quad_clean.evt
Size (bytes)519,546,240102,985,920
Size495.5 MB 98.2 MB
Events in quadrant A3,265,124692,778
Events in quadrant B3,871,165675,421
Events in quadrant C3,276,328658,407
Events in quadrant D4,872,376630,348

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139123
B0158442
C0138802
D0188982

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6633711.070406%
B66333014.537916%
C6633320.482436%
D66332473.723805%

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 7594 6635 4 4 0.05% 0.06%
B 7594 6635 97 97 1.28% 1.46%
C 7594 6635 0 0 0.00% 0.00%
D 7594 6635 131 131 1.73% 1.97%

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 76989 462.05 821 806 164.9
A 12 96 24035 140.88 821 806 164.9
A 0 226 7303 39.4 821 806 164.9
B 0 85 466999 3075.84 806 785 151.6
B 10 252 58152 378.48 806 785 151.6
B 0 189 47773 310.0 806 785 151.6
C 3 233 189796 1044.01 786 788 181.0
C 14 220 12750 66.07 786 788 181.0
C 13 61 5773 27.54 786 788 181.0
D 1 52 1086313 5517.5 768 751 196.7
D 8 195 539495 2738.23 768 751 196.7
D 7 80 112175 566.33 768 751 196.7

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