ASTROSAT CZTI

Data Quality Report

Orbit 44211

Creation date: 2024-06-27T23:00:34.791446
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_047T01_9000005970_44211cztM0_level2.fits modeM0/AS1A13_047T01_9000005970_44211cztM0_level2_quad_clean.evt
Size (bytes)596,741,76099,060,480
Size569.1 MB 94.5 MB
Events in quadrant A8,485,810663,169
Events in quadrant B4,659,651635,760
Events in quadrant C3,049,500680,320
Events in quadrant D5,418,708591,672

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0295471
B0179731
C0135111
D0203131

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A614965510.652139%
B614976812.489836%
C6149771.252236%
D61494807.806147%

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 7259 6150 369 369 5.08% 6.00%
B 7259 6150 531 531 7.32% 8.63%
C 7259 6150 31 31 0.43% 0.50%
D 7259 6150 462 462 6.36% 7.51%

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 15 223 4466732 31068.71 695 682 143.7
A 10 83 1300415 9041.78 695 682 143.7
A 2 79 22903 154.58 695 682 143.7
B 5 172 1727673 13291.16 655 636 129.9
B 0 200 103510 791.71 655 636 129.9
B 4 171 85588 653.78 655 636 129.9
C 14 254 143727 882.96 687 691 162.0
C 3 233 142284 874.05 687 691 162.0
C 4 254 84854 519.54 687 691 162.0
D 1 52 1651179 9657.14 674 654 170.9
D 2 249 836252 4889.04 674 654 170.9
D 13 249 192032 1119.74 674 654 170.9

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