ASTROSAT CZTI

Data Quality Report

Orbit 46972

Creation date: 2024-06-27T23:30:08.832341
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/AS1A13_071T07_9000006290_46972cztM0_level2.fits modeM0/AS1A13_071T07_9000006290_46972cztM0_level2_quad_clean.evt
Size (bytes)674,444,160117,345,600
Size643.2 MB 111.9 MB
Events in quadrant A7,315,115815,024
Events in quadrant B4,816,311814,074
Events in quadrant C3,286,084791,523
Events in quadrant D8,956,881600,910

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0268990
B0194970
C0156960
D0320350

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76411431.871483%
B76402373.102094%
C7641270.353357%
D7641162621.279937%

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 7641 7641 41 41 0.54% 0.54%
B 7640 7640 129 129 1.69% 1.69%
C 7641 7641 13 13 0.17% 0.17%
D 7641 7641 1600 1600 20.94% 20.94%

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 3908799 22836.66 822 804 171.1
A 14 248 99911 579.14 822 804 171.1
A 9 191 49497 284.54 822 804 171.1
B 3 112 827317 5184.63 815 790 159.4
B 5 172 263788 1649.73 815 790 159.4
B 4 171 153593 958.5 815 790 159.4
C 14 254 101631 538.7 800 805 187.2
C 12 250 18210 92.99 800 805 187.2
C 12 249 16532 84.03 800 805 187.2
D 1 52 5105074 27691.05 734 708 184.3
D 1 47 330683 1790.11 734 708 184.3
D 12 233 287805 1557.49 734 708 184.3

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