ASTROSAT CZTI

Data Quality Report

Orbit 40060

Creation date: 2024-06-27T22:11:50.985803
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/AS1A12_054T03_9000005516_40060cztM0_level2.fits modeM0/AS1A12_054T03_9000005516_40060cztM0_level2_quad_clean.evt
Size (bytes)385,053,12093,738,240
Size367.2 MB 89.4 MB
Events in quadrant A3,036,713629,073
Events in quadrant B3,121,556642,539
Events in quadrant C4,388,960594,697
Events in quadrant D3,250,764562,767

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125193
B0133742
C0167682
D0138892

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5851120.205093%
B58511392.375662%
C58513205.469151%
D58511292.204751%

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 7165 5852 7 7 0.10% 0.12%
B 7165 5852 74 74 1.03% 1.26%
C 7165 5852 284 284 3.96% 4.85%
D 7165 5852 122 122 1.70% 2.08%

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 492463 3825.73 636 625 128.6
A 13 248 33023 252.01 636 625 128.6
A 9 143 23492 177.87 636 625 128.6
B 4 171 581080 4723.93 628 612 122.9
B 0 230 50081 402.58 628 612 122.9
B 12 111 15342 119.87 628 612 122.9
C 9 187 1591874 11135.72 610 614 142.9
C 15 214 238348 1663.67 610 614 142.9
C 14 254 156726 1092.48 610 614 142.9
D 12 227 207690 1364.92 617 598 151.7
D 12 233 165037 1083.8 617 598 151.7
D 13 249 140313 920.85 617 598 151.7

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