ASTROSAT CZTI

Data Quality Report

Orbit 10246

Creation date: 2024-06-27T15:57:12.928284
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/AS1G07_011T03_9000001476_10246cztM0_level2.evt modeM0/AS1G07_011T03_9000001476_10246cztM0_level2_quad_clean.evt
Size (bytes)467,386,56065,606,400
Size445.7 MB 62.6 MB
Events in quadrant A3,122,694395,570
Events in quadrant B3,385,849398,997
Events in quadrant C3,042,159394,918
Events in quadrant D4,188,270369,087

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129813
B0137472
C0128584
D01643610

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6128430.701697%
B61281001.631854%
C6127400.652848%
D61271612.627713%

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 7423 6129 2 2 0.03% 0.03%
B 7423 6128 21 21 0.28% 0.34%
C 7423 6128 0 0 0.00% 0.00%
D 7423 6129 107 107 1.44% 1.75%

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 8 15 16742 99.59 801 787 160.2
A 14 31 8905 50.67 801 787 160.2
A 13 14 8812 50.09 801 787 160.2
B 10 247 112559 737.77 801 785 151.5
B 11 51 54849 356.85 801 785 151.5
B 4 239 54841 356.8 801 785 151.5
C 0 207 14444 77.2 774 781 177.0
C 13 61 5571 27.07 774 781 177.0
C 1 0 5298 25.52 774 781 177.0
D 1 52 851763 4653.74 766 747 182.9
D 8 195 349459 1906.92 766 747 182.9
D 2 14 26637 141.58 766 747 182.9

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