ASTROSAT CZTI

Data Quality Report

Orbit 03184

Creation date: 2024-06-27T14:25:38.971267
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/AS1G05_127T01_9000000436_03184cztM0_level2.evt modeM0/AS1G05_127T01_9000000436_03184cztM0_level2_quad_clean.evt
Size (bytes)550,635,84064,535,040
Size525.1 MB 61.5 MB
Events in quadrant A2,572,659425,553
Events in quadrant B2,755,293432,067
Events in quadrant C8,386,809309,007
Events in quadrant D2,587,722401,562

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113122
B0117681
C0287371
D0116881

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5510210.381125%
B5510380.689655%
C5510228841.524501%
D5510420.762250%

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 6825 5511 0 0 0.00% 0.00%
B 6825 5511 3 3 0.04% 0.05%
C 6825 5510 1950 1950 28.57% 35.39%
D 6825 5511 23 23 0.34% 0.42%

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 12 247 9001 62.04 663 650 134.6
A 0 226 7066 47.67 663 650 134.6
A 12 194 7052 47.56 663 650 134.6
B 4 81 112368 867.54 672 658 128.8
B 15 85 14961 111.08 672 658 128.8
B 4 200 13756 101.72 672 658 128.8
C 12 206 5755497 52319.81 470 474 110.0
C 1 192 704936 6404.37 470 474 110.0
C 6 80 54176 488.21 470 474 110.0
D 13 120 79667 515.33 631 613 153.4
D 2 248 58509 377.4 631 613 153.4
D 13 223 26845 171.0 631 613 153.4

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