ASTROSAT CZTI

Data Quality Report

Orbit 10405

Creation date: 2024-06-27T15:58:57.372548
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/AS1G07_057T02_9000001504_10405cztM0_level2.evt modeM0/AS1G07_057T02_9000001504_10405cztM0_level2_quad_clean.evt
Size (bytes)477,429,12098,616,960
Size455.3 MB 94.0 MB
Events in quadrant A3,252,623630,743
Events in quadrant B3,837,744644,051
Events in quadrant C3,186,216645,943
Events in quadrant D3,734,169605,644

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138743
B0156402
C0136852
D0151672

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6601290.439327%
B66011492.257234%
C6601250.378730%
D6601280.424178%

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 7831 6602 6 6 0.08% 0.09%
B 7831 6601 65 65 0.83% 0.98%
C 7831 6602 0 0 0.00% 0.00%
D 7831 6602 9 9 0.11% 0.14%

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 4 2 96288 580.01 816 798 164.6
A 0 226 7408 40.15 816 798 164.6
A 3 1 7309 39.55 816 798 164.6
B 4 239 439246 2871.67 817 798 152.7
B 0 219 73342 475.14 817 798 152.7
B 11 51 58203 375.98 817 798 152.7
C 14 234 7886 37.82 814 821 186.8
C 13 61 6157 28.56 814 821 186.8
C 14 67 3556 14.64 814 821 186.8
D 8 195 443397 2319.09 801 781 190.9
D 1 52 112843 587.15 801 781 190.9
D 1 20 111302 579.07 801 781 190.9

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