ASTROSAT CZTI

Data Quality Report

Orbit 45798

Creation date: 2024-06-27T23:16:19.246522
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/AS1T05_088T01_9000006126_45798cztM0_level2.fits modeM0/AS1T05_088T01_9000006126_45798cztM0_level2_quad_clean.evt
Size (bytes)697,432,320122,068,800
Size665.1 MB 116.4 MB
Events in quadrant A6,665,190838,050
Events in quadrant B8,894,388743,858
Events in quadrant C3,379,230834,528
Events in quadrant D6,279,134740,968

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0244620
B0319600
C0158640
D0240780

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77421321.704986%
B7741141118.227619%
C7742140.180832%
D77423144.055800%

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 7742 7742 4 4 0.05% 0.05%
B 7741 7741 654 654 8.45% 8.45%
C 7742 7742 0 0 0.00% 0.00%
D 7742 7742 298 298 3.85% 3.85%

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 3202449 17524.65 876 855 182.7
A 14 235 20863 109.52 876 855 182.7
A 13 254 15239 78.73 876 855 182.7
B 3 112 4508333 27773.74 832 807 162.3
B 4 171 246443 1513.52 832 807 162.3
B 0 189 176026 1079.64 832 807 162.3
C 3 233 12525 57.5 861 863 202.8
C 13 61 5905 24.86 861 863 202.8
C 12 2 4771 19.27 861 863 202.8
D 11 241 1251514 5891.41 850 825 212.3
D 8 48 495876 2331.95 850 825 212.3
D 12 2 340187 1598.58 850 825 212.3

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