ASTROSAT CZTI

Data Quality Report

Orbit 44606

Creation date: 2024-06-27T23:04:27.291284
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_009T03_9000006006_44606cztM0_level2.fits modeM0/AS1A13_009T03_9000006006_44606cztM0_level2_quad_clean.evt
Size (bytes)1,243,751,040261,247,680
Size1.2 GB 249.1 MB
Events in quadrant A12,879,5431,778,015
Events in quadrant B11,245,1251,717,737
Events in quadrant C8,886,8891,785,347
Events in quadrant D11,819,4401,549,928

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03200
B03200
C03200
D03200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0511562
B0436212
C0367682
D0458143

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A156416314.034269%
B1564214089.001406%
C156423402.173635%
D1564111957.640176%

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 19231 15641 299 299 1.55% 1.91%
B 19232 15642 972 972 5.05% 6.21%
C 19232 15642 192 192 1.00% 1.23%
D 19231 15641 1079 1079 5.61% 6.90%

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 4333753 11415.86 1848 1812 379.5
A 15 223 767389 2017.51 1848 1812 379.5
A 9 191 558753 1467.69 1848 1812 379.5
B 14 167 2113503 5895.29 1823 1769 358.2
B 5 172 1802322 5026.57 1823 1769 358.2
B 0 155 64404 174.86 1823 1769 358.2
C 3 233 910847 2112.63 1838 1850 430.3
C 12 2 513375 1188.85 1838 1850 430.3
C 14 254 151303 347.35 1838 1850 430.3
D 13 249 2105075 4668.58 1791 1738 450.5
D 1 52 1033497 2290.1 1791 1738 450.5
D 5 222 828761 1835.67 1791 1738 450.5

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