ASTROSAT CZTI

Data Quality Report

Orbit 23403

Creation date: 2024-06-27T18:53:54.110759
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/AS1A07_127T02_9000003460_23403cztM0_level2.evt modeM0/AS1A07_127T02_9000003460_23403cztM0_level2_quad_clean.evt
Size (bytes)477,397,44088,344,000
Size455.3 MB 84.3 MB
Events in quadrant A3,790,867569,424
Events in quadrant B3,509,773577,692
Events in quadrant C3,315,502546,374
Events in quadrant D3,411,508539,439

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154322
B0144922
C0139022
D0142972

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6342801.261432%
B6342911.434879%
C63421021.608325%
D6342550.867234%

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 7547 6342 6 6 0.08% 0.09%
B 7547 6342 7 7 0.09% 0.11%
C 7547 6342 0 0 0.00% 0.00%
D 7547 6342 1 1 0.01% 0.02%

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 6 16 453164 2619.07 866 849 172.7
A 13 254 10331 54.9 866 849 172.7
A 0 226 7598 39.08 866 849 172.7
B 0 190 65936 400.79 858 840 162.4
B 0 189 49416 299.08 858 840 162.4
B 4 216 25511 151.9 858 840 162.4
C 14 238 131604 695.79 814 822 188.0
C 10 9 9227 44.72 814 822 188.0
C 13 61 5656 25.72 814 822 188.0
D 1 52 123891 602.71 831 808 204.2
D 7 238 113489 551.78 831 808 204.2
D 2 234 23108 109.2 831 808 204.2

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