ASTROSAT CZTI

Data Quality Report

Orbit 45566

Creation date: 2024-06-27T23:13:43.984971
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/AS1A13_071T04_9000006110_45566cztM0_level2.fits modeM0/AS1A13_071T04_9000006110_45566cztM0_level2_quad_clean.evt
Size (bytes)621,161,280133,168,320
Size592.4 MB 127.0 MB
Events in quadrant A6,926,317903,009
Events in quadrant B5,145,167884,997
Events in quadrant C4,003,423880,173
Events in quadrant D6,270,521783,261

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0264580
B0211690
C0179950
D0244550

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A83602142.559809%
B83615666.769525%
C8361480.574094%
D83613974.748236%

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 8360 8360 7 7 0.08% 0.08%
B 8361 8361 230 230 2.75% 2.75%
C 8361 8361 29 29 0.35% 0.35%
D 8361 8361 280 280 3.35% 3.35%

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 3158942 16063.66 946 923 196.6
A 10 248 35932 178.08 946 923 196.6
A 13 248 31510 155.58 946 923 196.6
B 12 18 482394 2607.89 932 903 184.6
B 15 201 354081 1912.91 932 903 184.6
B 5 172 296868 1603.03 932 903 184.6
C 14 254 202598 921.07 929 930 218.9
C 12 2 111594 505.43 929 930 218.9
C 1 3 24374 107.07 929 930 218.9
D 1 52 1086151 4644.31 918 887 233.7
D 5 171 630661 2695.07 918 887 233.7
D 11 241 260588 1111.37 918 887 233.7

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