ASTROSAT CZTI

Data Quality Report

Orbit 36584

Creation date: 2024-06-27T21:28:46.312944
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/AS1A11_097T17_9000005222_36584cztM0_level2.evt modeM0/AS1A11_097T17_9000005222_36584cztM0_level2_quad_clean.evt
Size (bytes)189,907,20039,084,480
Size181.1 MB 37.3 MB
Events in quadrant A1,047,246265,700
Events in quadrant B1,139,108264,502
Events in quadrant C1,290,871256,351
Events in quadrant D2,127,606242,608

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A045511
B047821
C051831
D077711

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A212180.377181%
B2121241.131542%
C2121914.290429%
D21211878.816596%

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 2121 2121 5 5 0.24% 0.24%
B 2121 2121 17 17 0.80% 0.80%
C 2121 2121 67 67 3.16% 3.16%
D 2121 2121 192 192 9.05% 9.05%

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 94855 1946.62 233 227 48.6
A 15 223 44091 902.34 233 227 48.6
A 13 254 3769 72.86 233 227 48.6
B 5 255 105623 2323.67 230 224 45.4
B 0 221 33156 726.03 230 224 45.4
B 5 172 32389 709.12 230 224 45.4
C 0 10 201883 3700.24 226 228 54.5
C 14 254 106683 1953.38 226 228 54.5
C 15 214 90458 1655.66 226 228 54.5
D 10 246 581001 10363.38 225 219 56.0
D 13 171 125350 2232.82 225 219 56.0
D 12 235 121154 2157.94 225 219 56.0

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