ASTROSAT CZTI

Data Quality Report

Orbit 32949

Creation date: 2024-06-27T20:43:47.583913
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/AS1C07_005T01_9000004748_32949cztM0_level2.evt modeM0/AS1C07_005T01_9000004748_32949cztM0_level2_quad_clean.evt
Size (bytes)491,708,16083,134,080
Size468.9 MB 79.3 MB
Events in quadrant A2,077,485587,930
Events in quadrant B3,398,253577,046
Events in quadrant C2,154,558596,868
Events in quadrant D6,946,726429,700

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0920
B0920
C0920
D0920

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A092951
B0131511
C095421
D0237331

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A462820.043215%
B46283878.362143%
C4628170.367329%
D4628190041.054451%

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 4628 4628 0 0 0.00% 0.00%
B 4628 4628 272 272 5.88% 5.88%
C 4628 4628 13 13 0.28% 0.28%
D 4628 4628 1759 1759 38.01% 38.01%

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 13 254 8883 77.26 533 520 108.2
A 3 137 4855 40.05 533 520 108.2
A 0 226 4617 37.85 533 520 108.2
B 5 172 1205080 12346.69 516 503 97.6
B 5 200 39997 404.81 516 503 97.6
B 0 229 23204 232.68 516 503 97.6
C 0 10 54224 445.71 520 524 120.5
C 1 241 39098 320.16 520 524 120.5
C 14 67 11783 93.45 520 524 120.5
D 12 227 2860996 26656.88 416 406 107.3
D 12 218 1042459 9710.54 416 406 107.3
D 8 195 600226 5589.52 416 406 107.3

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