ASTROSAT CZTI

Data Quality Report

Orbit 43545

Creation date: 2024-06-27T22:53:00.222623
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/AS1A05_174T01_9000005880_43545cztM0_level2.fits modeM0/AS1A05_174T01_9000005880_43545cztM0_level2_quad_clean.evt
Size (bytes)1,083,772,80072,999,360
Size1.0 GB 69.6 MB
Events in quadrant A7,565,018729,243
Events in quadrant B4,613,627776,405
Events in quadrant C14,539,993110,358
Events in quadrant D12,912,136148,594

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0269831
B0180391
C0474925
D0426981

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A629695015.088945%
B62961913.033672%
C6295623298.999206%
D6295626399.491660%

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 7486 6296 421 421 5.62% 6.69%
B 7486 6297 98 98 1.31% 1.56%
C 7484 6294 4873 4873 65.11% 77.42%
D 7484 6294 3932 3932 52.54% 62.47%

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 0 228 3592104 24361.74 720 708 147.4
A 10 83 691823 4688.08 720 708 147.4
A 0 226 189390 1279.9 720 708 147.4
B 3 42 849195 5936.98 736 718 142.9
B 3 25 344505 2405.55 736 718 142.9
B 12 5 98672 685.41 736 718 142.9
C 15 126 6089618 212563.16 117 118 28.6
C 15 174 4474439 156182.9 117 118 28.6
C 15 142 2971740 103728.94 117 118 28.6
D 4 216 5382801 84813.8 184 175 63.5
D 4 212 2072915 32660.07 184 175 63.5
D 4 201 760021 11972.86 184 175 63.5

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