ASTROSAT CZTI

Data Quality Report

Orbit 43310

Creation date: 2024-06-27T22:50:28.631458
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/AS1A12_088T25_9000005866_43310cztM0_level2.fits modeM0/AS1A12_088T25_9000005866_43310cztM0_level2_quad_clean.evt
Size (bytes)343,408,32089,899,200
Size327.5 MB 85.7 MB
Events in quadrant A4,078,388576,337
Events in quadrant B2,714,828627,184
Events in quadrant C2,681,819596,141
Events in quadrant D2,811,770540,362

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156012
B0116732
C0112832
D0122742

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A54554067.442713%
B5455340.623281%
C545530.054995%
D5455831.521540%

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 7126 5456 296 296 4.15% 5.43%
B 7126 5456 24 24 0.34% 0.44%
C 7126 5456 2 2 0.03% 0.04%
D 7126 5456 82 82 1.15% 1.50%

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 15 237 1156153 9375.32 581 567 123.3
A 10 83 569724 4617.6 581 567 123.3
A 15 222 51666 414.57 581 567 123.3
B 0 189 94054 760.33 609 591 122.9
B 5 172 76340 616.23 609 591 122.9
B 15 35 55557 447.15 609 591 122.9
C 15 214 229808 1595.08 594 595 143.7
C 15 159 66088 455.76 594 595 143.7
C 14 254 42940 294.68 594 595 143.7
D 1 52 281125 1914.25 585 567 146.6
D 13 249 116644 792.0 585 567 146.6
D 12 6 46911 316.21 585 567 146.6

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