ASTROSAT CZTI

Data Quality Report

Orbit 46012

Creation date: 2024-06-27T23:18:45.736266
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/AS1A13_033T01_9000006152_46012cztM0_level2.fits modeM0/AS1A13_033T01_9000006152_46012cztM0_level2_quad_clean.evt
Size (bytes)650,030,400115,367,040
Size619.9 MB 110.0 MB
Events in quadrant A6,303,878775,442
Events in quadrant B9,082,989724,234
Events in quadrant C4,158,156784,824
Events in quadrant D3,973,686720,053

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0234843
B0319602
C0172012
D0168572

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70242453.488041%
B7024130718.607631%
C70242042.904328%
D70241101.566059%

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 8064 7024 23 23 0.29% 0.33%
B 8063 7023 986 986 12.23% 14.04%
C 8063 7023 166 166 2.06% 2.36%
D 8064 7025 70 70 0.87% 1.00%

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 10 83 3122149 18646.47 804 788 167.4
A 13 248 72810 430.25 804 788 167.4
A 13 254 11910 66.44 804 788 167.4
B 3 112 5935160 39029.28 773 751 152.1
B 4 171 75549 491.93 773 751 152.1
B 12 111 19100 120.67 773 751 152.1
C 14 254 797844 4253.37 795 800 187.4
C 12 250 116021 614.87 795 800 187.4
C 9 54 105498 558.71 795 800 187.4
D 0 240 318713 1579.41 795 769 201.3
D 1 52 238780 1182.34 795 769 201.3
D 2 249 113352 559.26 795 769 201.3

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