ASTROSAT CZTI

Data Quality Report

Orbit 46970

Creation date: 2024-06-27T23:30:06.850330
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_071T07_9000006290_46970cztM0_level2.fits modeM0/AS1A13_071T07_9000006290_46970cztM0_level2_quad_clean.evt
Size (bytes)615,706,56095,978,880
Size587.2 MB 91.5 MB
Events in quadrant A6,344,913663,084
Events in quadrant B8,430,425531,989
Events in quadrant C2,880,418667,244
Events in quadrant D4,646,921603,172

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0232504
B0295171
C0134381
D0183761

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63113355.308192%
B6311177028.046268%
C6312290.459442%
D63123205.069708%

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 7101 6313 66 66 0.93% 1.05%
B 7101 6313 1287 1287 18.12% 20.39%
C 7102 6314 0 0 0.00% 0.00%
D 7102 6314 258 258 3.63% 4.09%

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 3445210 24817.09 675 662 138.8
A 14 248 246037 1767.86 675 662 138.8
A 0 243 26776 188.14 675 662 138.8
B 3 112 5668868 46335.18 624 604 122.3
B 5 172 72963 591.5 624 604 122.3
B 4 171 70735 573.29 624 604 122.3
C 15 208 221234 1425.87 664 667 154.7
C 14 254 30174 190.75 664 667 154.7
C 12 250 15305 94.63 664 667 154.7
D 1 52 1238564 7543.32 655 636 164.1
D 13 249 345267 2100.01 655 636 164.1
D 1 47 226770 1377.95 655 636 164.1

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