ASTROSAT CZTI

Data Quality Report

Orbit 44943

Creation date: 2024-06-27T23:08:15.272116
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_017T02_9000006032_44943cztM0_level2.fits modeM0/AS1A13_017T02_9000006032_44943cztM0_level2_quad_clean.evt
Size (bytes)470,733,12092,733,120
Size448.9 MB 88.4 MB
Events in quadrant A4,591,209630,264
Events in quadrant B3,490,760641,337
Events in quadrant C2,661,562633,214
Events in quadrant D6,228,139495,084

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0182290
B0144900
C0122110
D0226420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58381161.986982%
B58392083.562254%
C5839140.239767%
D583999717.074842%

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 5838 5838 13 13 0.22% 0.22%
B 5839 5839 108 108 1.85% 1.85%
C 5839 5839 5 5 0.09% 0.09%
D 5839 5839 826 826 14.15% 14.15%

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 1937012 13830.94 665 651 140.0
A 7 191 40872 287.29 665 651 140.0
A 7 3 21453 148.58 665 651 140.0
B 4 171 454184 3466.54 660 638 130.8
B 5 172 117067 889.89 660 638 130.8
B 5 255 86555 656.68 660 638 130.8
C 14 254 34538 215.57 658 662 157.1
C 1 3 27808 172.74 658 662 157.1
C 3 233 13913 84.32 658 662 157.1
D 5 171 1302718 8557.44 605 588 152.2
D 13 187 1025482 6735.48 605 588 152.2
D 1 52 633138 4157.04 605 588 152.2

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