ASTROSAT CZTI

Data Quality Report

Orbit 13806

Creation date: 2024-06-27T16:46:20.787070
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/AS1A04_199T01_9000002040_13806cztM0_level2.evt modeM0/AS1A04_199T01_9000002040_13806cztM0_level2_quad_clean.evt
Size (bytes)444,738,24088,053,120
Size424.1 MB 84.0 MB
Events in quadrant A3,044,978568,743
Events in quadrant B3,409,988552,556
Events in quadrant C3,022,607567,495
Events in quadrant D3,563,888538,744

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131403
B0140932
C0129512
D0148942

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6287240.381740%
B62872183.467473%
C628790.143153%
D6287190.302211%

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 7493 6289 0 0 0.00% 0.00%
B 7493 6289 91 91 1.21% 1.45%
C 7493 6289 0 0 0.00% 0.00%
D 7493 6289 3 3 0.04% 0.05%

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 15 60619 385.81 768 753 155.2
A 1 162 15314 93.84 768 753 155.2
A 0 226 6925 39.78 768 753 155.2
B 3 64 315699 2203.48 750 733 142.9
B 0 219 49745 342.88 750 733 142.9
B 4 173 35735 244.87 750 733 142.9
C 3 233 84070 475.83 752 757 175.1
C 4 175 6027 30.1 752 757 175.1
C 13 61 5479 26.97 752 757 175.1
D 1 52 393689 2003.06 738 722 196.2
D 8 195 127246 644.93 738 722 196.2
D 10 157 123344 625.04 738 722 196.2

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