ASTROSAT CZTI

Data Quality Report

Orbit 44767

Creation date: 2024-06-27T23:06:17.540989
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_004T12_9000006020_44767cztM0_level2.fits modeM0/AS1A13_004T12_9000006020_44767cztM0_level2_quad_clean.evt
Size (bytes)558,901,440114,837,120
Size533.0 MB 109.5 MB
Events in quadrant A6,195,794742,319
Events in quadrant B4,440,051773,603
Events in quadrant C3,443,118774,699
Events in quadrant D6,041,784676,946

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0244522
B0182902
C0156252
D0230512

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73224566.227807%
B73213745.108592%
C73211091.488868%
D73215387.348723%

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 7807 7323 232 232 2.97% 3.17%
B 7806 7322 125 125 1.60% 1.71%
C 7806 7322 33 33 0.42% 0.45%
D 7806 7322 409 409 5.24% 5.59%

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 2165064 12918.62 804 782 167.5
A 15 223 872299 5202.09 804 782 167.5
A 13 248 38757 226.67 804 782 167.5
B 0 189 665735 4115.88 812 787 161.6
B 15 36 227023 1400.35 812 787 161.6
B 5 255 134669 828.7 812 787 161.6
C 1 3 129697 672.33 814 818 191.7
C 14 254 100325 519.11 814 818 191.7
C 0 207 10392 49.95 814 818 191.7
D 1 52 1414927 7205.01 789 766 196.3
D 7 38 467776 2379.37 789 766 196.3
D 2 249 319620 1624.53 789 766 196.3

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