ASTROSAT CZTI

Data Quality Report

Orbit 45697

Creation date: 2024-06-27T23:15:11.059627
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_028T01_9000006122_45697cztM0_level2.fits modeM0/AS1A13_028T01_9000006122_45697cztM0_level2_quad_clean.evt
Size (bytes)545,106,240121,259,520
Size519.9 MB 115.6 MB
Events in quadrant A6,485,786813,773
Events in quadrant B3,890,478829,045
Events in quadrant C3,644,687797,906
Events in quadrant D5,573,207706,138

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0243080
B0167740
C0162350
D0217050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75321051.394052%
B7533961.274393%
C7533470.623921%
D75333875.137395%

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 7532 7532 4 4 0.05% 0.05%
B 7533 7533 51 51 0.68% 0.68%
C 7533 7533 45 45 0.60% 0.60%
D 7533 7533 365 365 4.85% 4.85%

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 3149370 17902.28 842 824 175.9
A 13 248 68833 386.69 842 824 175.9
A 13 254 13198 70.36 842 824 175.9
B 5 172 206737 1258.31 840 814 163.7
B 12 18 126467 767.81 840 814 163.7
B 3 112 110018 667.3 840 814 163.7
C 14 254 263244 1350.66 822 828 194.3
C 3 233 107369 548.37 822 828 194.3
C 12 2 30537 152.91 822 828 194.3
D 1 52 1612946 7936.49 806 782 203.1
D 13 249 175179 858.54 806 782 203.1
D 2 249 169565 830.9 806 782 203.1

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