ASTROSAT CZTI

Data Quality Report

Orbit 46272

Creation date: 2024-06-27T23:21:07.289337
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_072T01_9000006192_46272cztM0_level2.fits modeM0/AS1A13_072T01_9000006192_46272cztM0_level2_quad_clean.evt
Size (bytes)536,780,160115,202,880
Size511.9 MB 109.9 MB
Events in quadrant A6,182,940763,893
Events in quadrant B5,187,679789,811
Events in quadrant C3,125,104778,333
Events in quadrant D4,855,633690,215

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0227852
B0201742
C0138962
D0190472

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66893385.053072%
B66893545.292271%
C66891151.719241%
D66894176.234116%

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 7814 6690 7 7 0.09% 0.10%
B 7814 6690 119 119 1.52% 1.78%
C 7814 6690 6 6 0.08% 0.09%
D 7814 6690 250 250 3.20% 3.74%

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 3155792 19644.49 778 764 160.6
A 13 254 11542 67.11 778 764 160.6
A 3 137 8557 48.52 778 764 160.6
B 3 112 1572400 10521.48 773 749 149.4
B 5 172 385278 2574.24 773 749 149.4
B 0 190 95540 634.58 773 749 149.4
C 12 2 67320 365.25 783 787 182.2
C 1 3 5903 28.09 783 787 182.2
C 13 61 5325 24.91 783 787 182.2
D 1 52 974125 5187.82 766 744 187.6
D 8 129 379966 2021.13 766 744 187.6
D 13 249 340025 1808.26 766 744 187.6

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