ASTROSAT CZTI

Data Quality Report

Orbit 20220524_T05_009T06_9000005154_level2

Creation date: 2022-05-26T17:19:54.731210
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_009T06_9000005154cztM0_level2_bc.evt modeM0/AS1T05_009T06_9000005154cztM0_level2_quad_clean.evt
Size (bytes)305,449,92064,722,240
Size291.3 MB 61.7 MB
Events in quadrant A960,413533,805
Events in quadrant B4,723,601172,969
Events in quadrant C1,605,366502,978
Events in quadrant D1,695,692481,680

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A078250
B0320070
C0105920
D0108580

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A377050.132626%
B3770376299.787798%
C37701744.615385%
D37701844.880637%

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 3770 3770 0 0 0.00% 0.00%
B 3768 3767 590 590 15.66% 15.66%
C 3769 3769 22 22 0.58% 0.58%
D 3769 3769 48 48 1.27% 1.27%

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 102992 2098.46 214 211 49.0
A 8 144 10446 208.97 214 211 49.0
A 15 174 8320 165.56 214 211 49.0
B 5 31 2562093 152861.22 69 68 16.8
B 5 15 1783509 106407.62 69 68 16.8
B 0 190 50729 3022.65 69 68 16.8
C 9 187 427009 9079.58 199 197 47.0
C 0 207 188395 4003.54 199 197 47.0
C 15 214 149862 3183.83 199 197 47.0
D 2 250 203483 4142.15 202 196 49.1
D 12 17 183249 3729.86 202 196 49.1
D 1 52 124466 2532.11 202 196 49.1

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