ASTROSAT CZTI

Data Quality Report

Orbit 05809

Creation date: 2024-06-27T14:59:25.893246
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/AS1G06_089T01_9000000746_05809cztM0_level2.evt modeM0/AS1G06_089T01_9000000746_05809cztM0_level2_quad_clean.evt
Size (bytes)548,786,88097,032,960
Size523.4 MB 92.5 MB
Events in quadrant A4,971,096596,676
Events in quadrant B3,894,602614,361
Events in quadrant C3,604,910600,644
Events in quadrant D3,611,346575,720

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02012515
B01675818
C0164645
D0166297

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79362773.490423%
B79331121.411824%
C7939520.654994%
D7937590.743354%

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 7975 7941 15 15 0.19% 0.19%
B 7975 7941 6 6 0.08% 0.08%
C 7975 7941 0 0 0.00% 0.00%
D 7975 7941 3 3 0.04% 0.04%

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 15 236 1235844 6344.58 941 920 194.6
A 15 174 75125 381.24 941 920 194.6
A 15 223 28401 141.19 941 920 194.6
B 0 219 89385 473.04 954 929 187.0
B 4 81 35891 186.97 954 929 187.0
B 4 48 30429 157.76 954 929 187.0
C 13 61 7386 29.9 920 923 216.1
C 8 128 4984 18.79 920 923 216.1
C 8 222 4809 17.98 920 923 216.1
D 4 95 44362 189.66 925 897 229.2
D 13 238 38758 165.2 925 897 229.2
D 8 195 12794 51.91 925 897 229.2

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