ASTROSAT CZTI

Data Quality Report

Orbit 46328

Creation date: 2024-06-27T23:21:46.649193
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_200T01_9000006196_46328cztM0_level2.fits modeM0/AS1T05_200T01_9000006196_46328cztM0_level2_quad_clean.evt
Size (bytes)728,277,12093,156,480
Size694.5 MB 88.8 MB
Events in quadrant A14,843,997174,034
Events in quadrant B3,764,375782,215
Events in quadrant C3,251,135747,322
Events in quadrant D4,594,294663,863

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0485232
B0152702
C0140782
D0179922

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6489538282.940361%
B64902043.143297%
C64901181.818182%
D64904026.194145%

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 8719 6491 4162 4162 47.73% 64.12%
B 8720 6492 19 19 0.22% 0.29%
C 8720 6492 15 15 0.17% 0.23%
D 8720 6492 256 256 2.94% 3.94%

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 15 223 11297099 127111.96 431 423 88.9
A 10 83 1829551 20581.63 431 423 88.9
A 2 79 28281 313.46 431 423 88.9
B 3 112 566110 3752.24 774 751 150.7
B 5 172 35809 232.68 774 751 150.7
B 5 32 31758 205.79 774 751 150.7
C 12 249 203258 1128.99 768 773 179.4
C 12 2 50060 274.81 768 773 179.4
C 13 61 5008 23.61 768 773 179.4
D 1 52 966542 5130.32 754 732 188.3
D 13 171 447708 2374.31 754 732 188.3
D 13 249 174440 922.73 754 732 188.3

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