ASTROSAT CZTI

Data Quality Report

Orbit 44476

Creation date: 2024-06-27T23:03:44.919116
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_072T03_9000006000_44476cztM0_level2.fits modeM0/AS1A13_072T03_9000006000_44476cztM0_level2_quad_clean.evt
Size (bytes)218,088,00052,246,080
Size208.0 MB 49.8 MB
Events in quadrant A2,264,002337,029
Events in quadrant B1,704,306366,670
Events in quadrant C1,592,237345,438
Events in quadrant D2,254,327298,875

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010741
B010945
C011136
D011040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A093
B0103
C092
D093

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161506488
B0117984428
C0112644182
D0150266147

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3211722.242292%
B3350551.641791%
C3338260.778910%
D32371364.201421%

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 6710 3517 0 0 0.00% 0.00%
B 6696 3659 23 23 0.34% 0.63%
C 6710 3663 12 12 0.18% 0.33%
D 6709 3573 113 113 1.68% 3.16%

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 833999 10648.04 368 359 78.3
A 0 243 8846 108.4 368 359 78.3
A 3 137 4172 48.7 368 359 78.3
B 5 172 162780 2114.31 379 367 76.8
B 0 229 24218 310.49 379 367 76.8
B 12 111 9520 119.15 379 367 76.8
C 14 254 57297 631.6 373 374 90.1
C 15 208 48761 536.89 373 374 90.1
C 3 233 23033 251.42 373 374 90.1
D 1 52 380319 4130.65 360 348 92.0
D 13 249 194662 2112.38 360 348 92.0
D 5 235 96233 1042.36 360 348 92.0

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