ASTROSAT CZTI

Data Quality Report

Orbit 03444

Creation date: 2024-06-27T14:29:05.712204
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/AS1G05_167T01_9000000456_03444cztM0_level2.evt modeM0/AS1G05_167T01_9000000456_03444cztM0_level2_quad_clean.evt
Size (bytes)465,151,68085,720,320
Size443.6 MB 81.7 MB
Events in quadrant A3,096,339548,529
Events in quadrant B3,596,020551,522
Events in quadrant C3,929,763538,378
Events in quadrant D3,047,080527,507

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130782
B0147841
C0156171
D0131521

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6161600.973868%
B6161631.022561%
C61612103.408538%
D6161590.957637%

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 7486 6162 0 0 0.00% 0.00%
B 7486 6162 7 7 0.09% 0.11%
C 7486 6162 133 133 1.78% 2.16%
D 7486 6162 13 13 0.17% 0.21%

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 0 50 32146 196.28 787 774 159.8
A 8 15 14270 84.44 787 774 159.8
A 3 1 14211 84.07 787 774 159.8
B 15 204 399676 2625.85 801 787 151.9
B 15 85 37423 241.17 801 787 151.9
B 14 167 26502 169.28 801 787 151.9
C 7 220 865496 4843.0 772 780 178.5
C 9 144 19965 107.45 772 780 178.5
C 14 48 8227 41.71 772 780 178.5
D 13 223 54766 289.91 770 751 186.3
D 10 172 20312 104.99 770 751 186.3
D 1 31 19765 102.05 770 751 186.3

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