ASTROSAT CZTI

Data Quality Report

Orbit 46031

Creation date: 2024-06-27T23:18:57.321797
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_033T02_9000006154_46031cztM0_level2.fits modeM0/AS1A13_033T02_9000006154_46031cztM0_level2_quad_clean.evt
Size (bytes)680,397,120117,878,400
Size648.9 MB 112.4 MB
Events in quadrant A6,479,187790,058
Events in quadrant B8,838,319728,181
Events in quadrant C3,763,762801,963
Events in quadrant D5,515,132718,685

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0237200
B0316050
C0167482
D0215500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76202042.677165%
B7620134117.598425%
C76191111.456884%
D76203564.671916%

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 7621 7621 14 14 0.18% 0.18%
B 7621 7621 874 874 11.47% 11.47%
C 7621 7621 76 76 1.00% 1.00%
D 7621 7621 267 267 3.50% 3.50%

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 3014925 16535.5 871 850 182.3
A 13 248 87095 473.15 871 850 182.3
A 13 254 13563 69.74 871 850 182.3
B 3 112 5121343 31035.62 821 792 165.0
B 0 183 385874 2333.98 821 792 165.0
B 4 171 35554 210.69 821 792 165.0
C 14 254 242992 1195.61 854 856 202.5
C 0 207 138120 677.78 854 856 202.5
C 1 3 42792 207.07 854 856 202.5
D 1 52 1498580 6871.41 851 824 218.0
D 2 37 309518 1416.23 851 824 218.0
D 2 249 149685 682.94 851 824 218.0

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