ASTROSAT CZTI

Data Quality Report

Orbit 09075

Creation date: 2024-06-27T15:41:14.954294
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_057T04_9000001264_09075cztM0_level2.evt modeM0/AS1G07_057T04_9000001264_09075cztM0_level2_quad_clean.evt
Size (bytes)469,238,40063,717,120
Size447.5 MB 60.8 MB
Events in quadrant A3,795,439373,810
Events in quadrant B3,339,001383,366
Events in quadrant C3,142,383371,030
Events in quadrant D3,503,887358,662

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152783
B0136142
C0131942
D0142842

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6339721.135826%
B6339841.325130%
C6339630.993848%
D63391041.640637%

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 7664 6340 1 1 0.01% 0.02%
B 7664 6340 9 9 0.12% 0.14%
C 7664 6340 0 0 0.00% 0.00%
D 7664 6340 35 35 0.46% 0.55%

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 5 545696 3234.94 827 812 168.4
A 1 162 31066 179.62 827 812 168.4
A 5 16 26270 151.14 827 812 168.4
B 10 252 24477 152.73 833 815 154.9
B 0 214 19774 122.37 833 815 154.9
B 0 229 16765 102.95 833 815 154.9
C 13 61 6213 29.23 804 810 184.8
C 14 234 2951 11.58 804 810 184.8
C 8 222 2108 7.02 804 810 184.8
D 1 52 157627 769.26 794 774 203.9
D 7 71 104642 509.4 794 774 203.9
D 2 14 98401 478.79 794 774 203.9

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