ASTROSAT CZTI

Data Quality Report

Orbit 13396

Creation date: 2024-06-27T16:40:10.761004
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/AS1A04_103T01_9000001988_13396cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13396cztM0_level2_quad_clean.evt
Size (bytes)862,211,520156,329,280
Size822.3 MB 149.1 MB
Events in quadrant A5,559,682984,055
Events in quadrant B6,650,814995,086
Events in quadrant C6,486,182976,423
Events in quadrant D6,587,028932,623

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0248604
B0278483
C0271303
D0277943

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02500
B02500
C02500
D02500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A122321261.030085%
B122324413.605298%
C122322181.782211%
D122331321.079048%

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 13278 12233 0 0 0.00% 0.00%
B 13278 12233 171 171 1.29% 1.40%
C 13278 12233 74 74 0.56% 0.60%
D 13279 12234 28 28 0.21% 0.23%

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 1 162 23144 74.18 1436 1404 293.1
A 0 226 12621 38.27 1436 1404 293.1
A 12 194 10875 32.32 1436 1404 293.1
B 3 64 617754 2232.87 1431 1391 276.0
B 10 245 201682 725.58 1431 1391 276.0
B 4 142 139059 498.72 1431 1391 276.0
C 14 220 772201 2371.07 1407 1412 325.1
C 3 233 204824 625.73 1407 1412 325.1
C 14 234 22848 65.94 1407 1412 325.1
D 8 195 711939 2124.34 1393 1352 334.5
D 1 52 343012 1021.41 1393 1352 334.5
D 5 222 229343 681.59 1393 1352 334.5

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