ASTROSAT CZTI

Data Quality Report

Orbit 44367

Creation date: 2024-06-27T23:02:44.109674
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_008T06_9000005994_44367cztM0_level2.fits modeM0/AS1A13_008T06_9000005994_44367cztM0_level2_quad_clean.evt
Size (bytes)613,768,320112,328,640
Size585.3 MB 107.1 MB
Events in quadrant A9,729,244647,034
Events in quadrant B3,719,708794,604
Events in quadrant C3,654,803764,946
Events in quadrant D5,046,652683,505

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0341722
B0159582
C0159832
D0199592

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7340166022.615804%
B73401902.588556%
C73411351.838987%
D73413735.081052%

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 8760 7340 1274 1274 14.54% 17.36%
B 8760 7340 17 17 0.19% 0.23%
C 8761 7341 20 20 0.23% 0.27%
D 8761 7341 266 266 3.04% 3.62%

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 4057335 24470.51 791 772 165.8
A 10 83 1701613 10260.03 791 772 165.8
A 13 248 748071 4507.95 791 772 165.8
B 0 190 118658 701.09 848 820 168.1
B 0 219 76680 451.34 848 820 168.1
B 5 172 66705 391.99 848 820 168.1
C 14 254 236536 1182.15 838 844 199.4
C 14 96 96401 479.28 838 844 199.4
C 3 233 31231 152.41 838 844 199.4
D 13 249 535280 2557.0 825 800 209.0
D 1 52 292774 1396.83 825 800 209.0
D 2 249 287291 1370.6 825 800 209.0

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