ASTROSAT CZTI

Data Quality Report

Orbit 38967

Creation date: 2024-06-27T21:58:44.731106
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/AS1T05_064T01_9000005416_38967cztM0_level2.fits modeM0/AS1T05_064T01_9000005416_38967cztM0_level2_quad_clean.evt
Size (bytes)336,646,08093,971,520
Size321.1 MB 89.6 MB
Events in quadrant A2,880,579647,174
Events in quadrant B2,623,889651,147
Events in quadrant C3,119,831619,684
Events in quadrant D3,438,525568,995

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117433
B0110612
C0123412
D0136402

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5119310.605587%
B5119490.957218%
C5119771.504200%
D51191993.887478%

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 7063 5120 24 24 0.34% 0.47%
B 7063 5120 35 35 0.50% 0.68%
C 7063 5120 76 76 1.08% 1.48%
D 7063 5120 183 183 2.59% 3.57%

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 422859 3495.27 597 585 120.8
A 15 174 111279 916.24 597 585 120.8
A 13 248 17059 136.36 597 585 120.8
B 5 172 199593 1777.87 589 573 111.9
B 0 230 50107 442.49 589 573 111.9
B 0 199 17993 155.61 589 573 111.9
C 14 254 574646 4323.96 579 584 132.8
C 15 214 224903 1689.62 579 584 132.8
C 12 249 19574 143.04 579 584 132.8
D 2 249 672116 4806.53 581 565 139.7
D 12 233 208120 1485.54 581 565 139.7
D 12 227 117705 838.41 581 565 139.7

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