ASTROSAT CZTI

Data Quality Report

Orbit 15106

Creation date: 2024-06-27T17:03:55.807665
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_148T03_9000002222_15106cztM0_level2.evt modeM0/AS1A04_148T03_9000002222_15106cztM0_level2_quad_clean.evt
Size (bytes)373,017,60078,082,560
Size355.7 MB 74.5 MB
Events in quadrant A2,389,377502,904
Events in quadrant B3,091,333506,664
Events in quadrant C3,079,957500,249
Events in quadrant D2,380,076488,327

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0108482
B0126051
C0125281
D0109671

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5231380.726439%
B52311342.561652%
C52311352.580768%
D5231400.764672%

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 6277 5232 0 0 0.00% 0.00%
B 6277 5232 67 67 1.07% 1.28%
C 6277 5232 72 72 1.15% 1.38%
D 6277 5232 10 10 0.16% 0.19%

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 12 189 23875 187.2 614 601 124.3
A 0 226 5419 38.75 614 601 124.3
A 12 194 4590 32.08 614 601 124.3
B 3 64 418214 3583.59 610 594 116.5
B 10 245 240701 2060.36 610 594 116.5
B 3 209 19714 164.07 610 594 116.5
C 4 254 446625 3221.36 597 599 138.5
C 3 233 305004 2198.52 597 599 138.5
C 13 61 4335 26.98 597 599 138.5
D 13 170 49073 327.65 600 582 148.0
D 10 70 25176 166.18 600 582 148.0
D 2 234 19947 130.85 600 582 148.0

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