ASTROSAT CZTI

Data Quality Report

Orbit 45839

Creation date: 2024-06-27T23:16:46.171687
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_186T01_9000006130_45839cztM0_level2.fits modeM0/AS1T05_186T01_9000006130_45839cztM0_level2_quad_clean.evt
Size (bytes)727,747,200109,457,280
Size694.0 MB 104.4 MB
Events in quadrant A6,903,634734,692
Events in quadrant B7,845,651722,981
Events in quadrant C3,461,064772,738
Events in quadrant D8,186,898595,348

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0249372
B0283492
C0151312
D0292072

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70104876.947218%
B7011103614.776779%
C70111331.897019%
D7011130818.656397%

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 7765 7011 31 31 0.40% 0.44%
B 7766 7012 541 541 6.97% 7.72%
C 7766 7012 23 23 0.30% 0.33%
D 7766 7012 984 984 12.67% 14.03%

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 3055728 18009.38 814 797 169.6
A 15 14 480426 2827.5 814 797 169.6
A 0 247 80314 468.77 814 797 169.6
B 3 112 4249529 26733.09 794 769 158.9
B 4 171 155028 970.59 794 769 158.9
B 0 171 64964 403.91 794 769 158.9
C 14 254 165262 853.53 817 822 192.7
C 3 233 43994 224.08 817 822 192.7
C 12 250 32590 164.89 817 822 192.7
D 12 2 1975657 10188.03 761 737 193.8
D 11 241 1390197 7167.82 761 737 193.8
D 13 249 909277 4686.89 761 737 193.8

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