ASTROSAT CZTI

Data Quality Report

Orbit 09909

Creation date: 2024-06-27T15:52:22.076826
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/AS1A03_053T01_9000001410_09909cztM0_level2.evt modeM0/AS1A03_053T01_9000001410_09909cztM0_level2_quad_clean.evt
Size (bytes)673,738,560106,084,800
Size642.5 MB 101.2 MB
Events in quadrant A4,906,174661,339
Events in quadrant B4,499,333676,664
Events in quadrant C3,865,935669,530
Events in quadrant D6,561,568619,130

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01720
B01720
C01720
D01720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02006622
B0188939
C01725712
D02556629

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A84402142.535545%
B84421862.203269%
C8440921.090047%
D84364495.322428%

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 10050 8447 72 72 0.72% 0.85%
B 10050 8447 29 29 0.29% 0.34%
C 10050 8447 0 0 0.00% 0.00%
D 10050 8447 328 328 3.26% 3.88%

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 15 239 976520 4723.6 1013 992 206.5
A 13 251 14703 66.39 1013 992 206.5
A 0 226 9490 41.15 1013 992 206.5
B 4 81 241086 1224.51 1020 995 196.1
B 0 214 117579 594.6 1020 995 196.1
B 4 239 60806 305.05 1020 995 196.1
C 13 61 7519 28.36 988 990 230.2
C 14 67 5902 21.34 988 990 230.2
C 12 4 5781 20.81 988 990 230.2
D 1 52 1071249 4406.57 970 944 242.9
D 8 195 931079 3829.48 970 944 242.9
D 2 152 262333 1076.17 970 944 242.9

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