ASTROSAT CZTI

Data Quality Report

Orbit 47092

Creation date: 2024-06-27T23:31:37.997512
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/AS1C09_003T01_9000006298_47092cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47092cztM0_level2_quad_clean.evt
Size (bytes)1,452,078,720280,175,040
Size1.4 GB 267.2 MB
Events in quadrant A18,112,5891,916,318
Events in quadrant B9,667,4091,968,728
Events in quadrant C14,686,1161,573,590
Events in quadrant D9,851,9641,744,953

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0662824
B0418284
C0573044
D0429174

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03780
B03780
C03780
D03780

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A185506163.320755%
B185502901.563342%
C18550281215.159030%
D185503261.757412%

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 20180 18554 119 119 0.59% 0.64%
B 20180 18554 86 86 0.43% 0.46%
C 20180 18553 2844 2844 14.09% 15.33%
D 20180 18554 205 205 1.02% 1.10%

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 9908497 23764.09 2016 1979 416.9
A 15 254 181034 429.52 2016 1979 416.9
A 9 191 48970 112.72 2016 1979 416.9
B 3 112 333880 853.03 2012 1949 389.1
B 5 172 243835 621.62 2012 1949 389.1
B 4 171 208902 531.85 2012 1949 389.1
C 15 208 6858685 15670.8 1871 1876 437.6
C 14 254 321018 729.38 1871 1876 437.6
C 12 2 68117 151.39 1871 1876 437.6
D 1 47 349731 699.68 1984 1921 497.1
D 2 249 326276 652.5 1984 1921 497.1
D 8 48 236920 472.74 1984 1921 497.1

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