ASTROSAT CZTI

Data Quality Report

Orbit 47524

Creation date: 2024-07-12T08:20:54.248331
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/AS1C09_002T01_9000006334_47524cztM0_level2.fits modeM0/AS1C09_002T01_9000006334_47524cztM0_level2_quad_clean.evt
Size (bytes)608,497,920134,225,280
Size580.3 MB 128.0 MB
Events in quadrant A8,341,171893,412
Events in quadrant B4,208,603912,745
Events in quadrant C3,648,643883,221
Events in quadrant D5,671,678788,011

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0303472
B0183750
C0171430
D0228730

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01680
B01680
C01680
D01680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A84461922.273265%
B84471171.385107%
C8447140.165739%
D84473914.628862%

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 8446 8446 71 71 0.84% 0.84%
B 8447 8447 55 55 0.65% 0.65%
C 8447 8447 3 3 0.04% 0.04%
D 8447 8447 338 338 4.00% 4.00%

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 4390101 23044.52 921 901 190.5
A 13 248 214784 1122.95 921 901 190.5
A 9 191 163582 854.12 921 901 190.5
B 5 32 285520 1561.52 927 898 182.3
B 0 200 113495 617.74 927 898 182.3
B 0 198 48639 261.92 927 898 182.3
C 14 254 21172 94.27 916 919 214.8
C 9 69 20431 90.82 916 919 214.8
C 1 3 16362 71.88 916 919 214.8
D 2 249 827531 3669.3 895 866 225.3
D 7 38 639920 2836.55 895 866 225.3
D 4 222 481492 2133.34 895 866 225.3

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