ASTROSAT CZTI

Data Quality Report

Orbit 27114

Creation date: 2024-06-27T19:36:40.076118
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/AS1T03_244T01_9000003912_27114cztM0_level2.evt modeM0/AS1T03_244T01_9000003912_27114cztM0_level2_quad_clean.evt
Size (bytes)552,352,32095,895,360
Size526.8 MB 91.5 MB
Events in quadrant A3,498,766625,434
Events in quadrant B3,393,881641,995
Events in quadrant C3,315,067612,714
Events in quadrant D6,054,107544,757

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148380
B0144100
C0141630
D0227230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6869540.786141%
B6869550.800699%
C6869911.324793%
D6869100114.572718%

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 7684 6870 6 6 0.08% 0.09%
B 7684 6870 0 0 0.00% 0.00%
C 7684 6870 0 0 0.00% 0.00%
D 7684 6870 994 994 12.94% 14.47%

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 14 235 228697 1347.39 838 820 169.1
A 12 189 17902 101.0 838 820 169.1
A 8 192 16054 90.08 838 820 169.1
B 3 112 31902 193.35 840 818 160.8
B 0 189 24027 144.37 840 818 160.8
B 12 111 19381 115.47 840 818 160.8
C 14 238 130839 683.62 814 818 190.2
C 15 208 10967 53.36 814 818 190.2
C 13 61 5693 25.63 814 818 190.2
D 1 52 2350987 11620.44 769 753 202.3
D 7 38 361477 1783.55 769 753 202.3
D 2 250 262016 1291.78 769 753 202.3

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