ASTROSAT CZTI

Data Quality Report

Orbit 29477

Creation date: 2024-06-27T20:04:30.550552
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/AS1A10_102T09_9000004242_29477cztM0_level2.evt modeM0/AS1A10_102T09_9000004242_29477cztM0_level2_quad_clean.evt
Size (bytes)746,547,84094,847,040
Size712.0 MB 90.5 MB
Events in quadrant A3,389,929632,042
Events in quadrant B3,439,764640,630
Events in quadrant C3,486,939613,257
Events in quadrant D11,819,318497,445

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145081
B0146181
C0145692
D0399921

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70091271.811956%
B70101472.097004%
C70091652.354116%
D7009209529.890141%

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 7299 7010 0 0 0.00% 0.00%
B 7300 7011 1 1 0.01% 0.01%
C 7299 7010 0 0 0.00% 0.00%
D 7299 7010 1923 1923 26.35% 27.43%

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 1 113 15899 84.36 870 852 178.4
A 12 96 14154 74.58 870 852 178.4
A 13 254 12728 66.58 870 852 178.4
B 0 190 24323 138.27 860 836 169.9
B 12 111 20863 117.9 860 836 169.9
B 11 111 18784 105.66 860 836 169.9
C 14 238 130988 666.33 830 836 195.3
C 3 233 91131 462.28 830 836 195.3
C 2 114 17099 83.26 830 836 195.3
D 8 195 5519022 30143.24 763 743 183.1
D 1 52 2139203 11681.2 763 743 183.1
D 7 223 484352 2641.68 763 743 183.1

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