ASTROSAT CZTI

Data Quality Report

Orbit 44913

Creation date: 2024-06-27T23:07:56.974882
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_017T02_9000006032_44913cztM0_level2.fits modeM0/AS1A13_017T02_9000006032_44913cztM0_level2_quad_clean.evt
Size (bytes)668,047,680124,986,240
Size637.1 MB 119.2 MB
Events in quadrant A6,610,279851,203
Events in quadrant B4,549,778876,145
Events in quadrant C3,700,418855,280
Events in quadrant D9,261,578656,253

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0255730
B0188990
C0165730
D0330260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78362052.616131%
B78371652.105397%
C7837350.446599%
D7837158220.186296%

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 7836 7836 75 75 0.96% 0.96%
B 7837 7837 64 64 0.82% 0.82%
C 7837 7837 14 14 0.18% 0.18%
D 7837 7837 1002 1002 12.79% 12.79%

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 2678946 14111.08 902 880 189.8
A 13 248 333909 1754.77 902 880 189.8
A 0 247 83445 435.05 902 880 189.8
B 3 112 366927 2059.11 903 875 177.8
B 5 172 138137 772.12 903 875 177.8
B 0 155 107167 597.91 903 875 177.8
C 12 2 77658 362.86 894 899 211.5
C 14 254 27668 126.55 894 899 211.5
C 0 207 27251 124.57 894 899 211.5
D 1 52 3205620 15239.9 823 799 210.3
D 13 174 890185 4229.3 823 799 210.3
D 13 249 435545 2067.35 823 799 210.3

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