ASTROSAT CZTI

Data Quality Report

Orbit 47133

Creation date: 2024-06-27T23:32:06.427187
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_003T01_9000006298_47133cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47133cztM0_level2_quad_clean.evt
Size (bytes)626,353,920121,991,040
Size597.3 MB 116.3 MB
Events in quadrant A7,758,071835,383
Events in quadrant B3,991,913847,583
Events in quadrant C3,864,219801,834
Events in quadrant D6,961,453661,240

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0286920
B0171370
C0173230
D0262757

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78702783.532402%
B78711922.439334%
C78711461.854910%
D7870112314.269377%

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 7870 7870 1 1 0.01% 0.01%
B 7871 7871 60 60 0.76% 0.76%
C 7871 7871 74 74 0.94% 0.94%
D 7870 7870 845 845 10.74% 10.74%

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 4255387 23222.34 887 867 183.2
A 10 255 22023 115.48 887 867 183.2
A 13 254 13170 67.15 887 867 183.2
B 5 32 213957 1242.55 877 850 171.5
B 0 200 47685 273.08 877 850 171.5
B 4 171 46655 267.07 877 850 171.5
C 14 254 491944 2452.72 858 862 200.2
C 1 3 8236 36.83 858 862 200.2
C 14 67 7720 34.25 858 862 200.2
D 12 3 1951433 9393.66 823 795 207.7
D 2 249 970201 4668.35 823 795 207.7
D 8 48 155190 743.52 823 795 207.7

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