ASTROSAT CZTI

Data Quality Report

Orbit 15005

Creation date: 2024-06-27T17:02:25.736505
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/AS1T02_056T01_9000002210_15005cztM0_level2.evt modeM0/AS1T02_056T01_9000002210_15005cztM0_level2_quad_clean.evt
Size (bytes)484,349,76085,072,320
Size461.9 MB 81.1 MB
Events in quadrant A3,620,124540,069
Events in quadrant B4,087,907528,407
Events in quadrant C3,337,912534,036
Events in quadrant D3,175,338514,216

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151563
B0164532
C0139522
D0140892

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6585600.911162%
B65853024.586181%
C6585240.364465%
D6585520.789674%

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 7626 6587 4 4 0.05% 0.06%
B 7626 6587 209 209 2.74% 3.17%
C 7626 6587 2 2 0.03% 0.03%
D 7626 6587 30 30 0.39% 0.46%

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 1 162 195517 1216.35 785 768 160.1
A 12 189 145972 906.91 785 768 160.1
A 1 178 95226 589.96 785 768 160.1
B 10 16 795906 5412.46 775 755 146.9
B 0 229 100075 676.05 775 755 146.9
B 3 64 48841 327.31 775 755 146.9
C 3 233 336083 1880.93 765 770 178.3
C 12 4 9716 50.18 765 770 178.3
C 13 61 5529 26.7 765 770 178.3
D 7 38 113178 612.02 761 738 183.7
D 2 120 54583 293.08 761 738 183.7
D 7 223 34168 181.96 761 738 183.7

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