ASTROSAT CZTI

Data Quality Report

Orbit 48346

Creation date: 2024-09-05T20:10:43.706587
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_037T05_9000006424_48346cztM0_level2.fits modeM0/AS1A13_037T05_9000006424_48346cztM0_level2_quad_clean.evt
Size (bytes)424,978,560100,512,000
Size405.3 MB 95.9 MB
Events in quadrant A6,420,801662,075
Events in quadrant B2,974,922697,745
Events in quadrant C2,630,452673,995
Events in quadrant D3,254,076604,536

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0235901
B0127741
C0120001
D0138881

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58063385.821564%
B58071101.894266%
C5807500.861030%
D58072013.461340%

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 6951 5806 81 81 1.17% 1.40%
B 6952 5807 15 15 0.22% 0.26%
C 6952 5808 5 5 0.07% 0.09%
D 6952 5808 113 113 1.63% 1.95%

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 3576754 25807.67 665 651 138.6
A 13 248 213837 1538.5 665 651 138.6
A 7 3 31133 219.98 665 651 138.6
B 5 255 119538 916.3 666 647 129.8
B 0 200 81361 622.07 666 647 129.8
B 4 21 69345 529.46 666 647 129.8
C 12 2 47800 308.0 654 658 153.1
C 12 249 16857 105.83 654 658 153.1
C 1 16 7467 44.49 654 658 153.1
D 2 165 561405 3390.78 655 636 165.4
D 2 249 109645 659.14 655 636 165.4
D 2 234 28658 169.44 655 636 165.4

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