ASTROSAT CZTI

Data Quality Report

Orbit 31384

Creation date: 2024-06-27T20:27:34.072981
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/AS1A10_064T05_9000004548_31384cztM0_level2.evt modeM0/AS1A10_064T05_9000004548_31384cztM0_level2_quad_clean.evt
Size (bytes)535,397,76078,923,520
Size510.6 MB 75.3 MB
Events in quadrant A3,339,859500,589
Events in quadrant B5,251,261491,789
Events in quadrant C3,589,861468,685
Events in quadrant D3,589,287471,333

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135671
B0202371
C0143681
D0145721

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6553991.510758%
B65541862.837962%
C65541872.853219%
D6554841.281660%

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 7603 6554 0 0 0.00% 0.00%
B 7604 6554 15 15 0.20% 0.23%
C 7604 6555 24 24 0.32% 0.37%
D 7604 6554 5 5 0.07% 0.08%

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 13 254 11855 63.5 865 848 173.3
A 3 137 8535 44.35 865 848 173.3
A 0 226 7327 37.38 865 848 173.3
B 6 159 1725327 10681.82 841 819 161.4
B 0 190 124614 766.8 841 819 161.4
B 4 80 83158 510.02 841 819 161.4
C 3 233 212348 1132.76 803 810 186.7
C 14 238 133732 711.78 803 810 186.7
C 0 10 89846 476.78 803 810 186.7
D 8 195 338904 1720.53 830 810 196.5
D 10 203 48480 242.59 830 810 196.5
D 2 250 47664 238.44 830 810 196.5

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