ASTROSAT CZTI

Data Quality Report

Orbit 34077

Creation date: 2024-06-27T20:56:15.135226
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/AS1C07_001T04_9000004868_34077cztM0_level2.evt modeM0/AS1C07_001T04_9000004868_34077cztM0_level2_quad_clean.evt
Size (bytes)1,765,681,920265,098,240
Size1.6 GB 252.8 MB
Events in quadrant A7,868,5641,814,074
Events in quadrant B18,005,3451,724,814
Events in quadrant C11,717,7291,720,367
Events in quadrant D14,747,3051,604,632

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03460
B03460
C03460
D03460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340105
B0649894
C0452764
D0556244

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A16890190.112493%
B16890264315.648313%
C168905523.268206%
D168909605.683837%

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 25263 16893 0 0 0.00% 0.00%
B 25262 16893 2326 2326 9.21% 13.77%
C 25262 16893 554 554 2.19% 3.28%
D 25263 16894 874 874 3.46% 5.17%

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 42028 100.53 2019 1985 398.3
A 13 254 31195 73.33 2019 1985 398.3
A 13 6 27660 64.46 2019 1985 398.3
B 5 31 6376427 18086.63 1904 1857 352.4
B 5 15 1672516 4740.18 1904 1857 352.4
B 5 172 1217086 3447.98 1904 1857 352.4
C 0 10 1514385 3576.79 1885 1899 422.9
C 0 207 1188623 2806.41 1885 1899 422.9
C 3 233 871022 2055.34 1885 1899 422.9
D 8 195 3535656 7843.68 1889 1845 450.5
D 10 118 1612221 3574.41 1889 1845 450.5
D 13 249 750186 1661.03 1889 1845 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