ASTROSAT CZTI

Data Quality Report

Orbit 03228

Creation date: 2024-06-27T14:26:05.289815
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/AS1G05_221T01_9000000438_03228cztM0_level2.evt modeM0/AS1G05_221T01_9000000438_03228cztM0_level2_quad_clean.evt
Size (bytes)563,284,80077,454,720
Size537.2 MB 73.9 MB
Events in quadrant A6,856,964447,569
Events in quadrant B3,489,131494,431
Events in quadrant C3,181,494492,544
Events in quadrant D3,099,179465,669

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0245623
B0144212
C0135522
D0136662

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6375132420.768627%
B6375450.705882%
C6375510.800000%
D6375360.564706%

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 7645 6376 1224 1224 16.01% 19.20%
B 7645 6376 2 2 0.03% 0.03%
C 7645 6375 24 24 0.31% 0.38%
D 7645 6376 16 16 0.21% 0.25%

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 0 50 1872890 13137.84 698 685 142.5
A 0 199 1446806 10147.87 698 685 142.5
A 0 118 616314 4320.06 698 685 142.5
B 15 204 373956 2540.28 782 766 146.9
B 3 0 24430 161.08 782 766 146.9
B 7 252 21134 138.64 782 766 146.9
C 14 223 123206 704.15 754 760 173.9
C 6 80 63903 363.12 754 760 173.9
C 14 48 34999 196.9 754 760 173.9
D 13 223 107469 601.47 741 721 177.5
D 2 107 39346 217.63 741 721 177.5
D 5 233 38228 211.33 741 721 177.5

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