ASTROSAT CZTI

Data Quality Report

Orbit 47740

Creation date: 2024-07-26T21:46:22.117093
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_213T01_9000006344_47740cztM0_level2.fits modeM0/AS1T05_213T01_9000006344_47740cztM0_level2_quad_clean.evt
Size (bytes)555,082,560120,841,920
Size529.4 MB 115.2 MB
Events in quadrant A7,657,286792,821
Events in quadrant B4,316,466791,569
Events in quadrant C4,195,008788,165
Events in quadrant D3,778,798748,642

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0285390
B0183370
C0183800
D0169730

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77303504.527814%
B77314405.691372%
C77313484.501358%
D77311011.306429%

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 7730 7730 0 0 0.00% 0.00%
B 7731 7731 118 118 1.53% 1.53%
C 7731 7731 252 252 3.26% 3.26%
D 7731 7731 24 24 0.31% 0.31%

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 4229520 23622.4 858 839 179.0
A 9 191 50309 276.35 858 839 179.0
A 9 143 21416 114.95 858 839 179.0
B 5 32 405049 2428.72 844 815 166.4
B 5 255 333834 2000.84 844 815 166.4
B 0 200 125141 746.97 844 815 166.4
C 14 254 840883 4316.8 829 832 194.6
C 12 2 102289 521.36 829 832 194.6
C 0 207 12060 57.7 829 832 194.6
D 10 181 138221 648.73 853 824 211.8
D 2 165 76258 356.16 853 824 211.8
D 2 249 72373 337.82 853 824 211.8

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