ASTROSAT CZTI

Data Quality Report

Orbit 47057

Creation date: 2024-06-27T23:31:13.615003
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/AS1C09_005T01_9000006296_47057cztM0_level2.fits modeM0/AS1C09_005T01_9000006296_47057cztM0_level2_quad_clean.evt
Size (bytes)571,464,00094,196,160
Size545.0 MB 89.8 MB
Events in quadrant A5,960,851650,243
Events in quadrant B8,360,405506,271
Events in quadrant C2,684,761658,857
Events in quadrant D3,666,237602,558

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220762
B0291791
C0127791
D0153341

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62102473.977456%
B6211193931.218805%
C6211771.239736%
D62111782.865883%

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 6945 6211 1 1 0.01% 0.02%
B 6946 6212 1305 1305 18.79% 21.01%
C 6946 6212 0 0 0.00% 0.00%
D 6946 6212 76 76 1.09% 1.22%

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 3248517 23185.9 676 660 140.1
A 9 191 41893 294.36 676 660 140.1
A 13 248 30897 215.86 676 660 140.1
B 3 112 5542069 46318.37 615 595 119.6
B 5 172 229218 1910.94 615 595 119.6
B 5 255 71132 589.58 615 595 119.6
C 14 254 48916 307.96 670 670 156.7
C 7 220 10393 62.06 670 670 156.7
C 12 250 9324 55.24 670 670 156.7
D 1 52 595282 3519.75 670 647 168.9
D 1 47 134899 794.66 670 647 168.9
D 12 233 94809 557.36 670 647 168.9

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