ASTROSAT CZTI

Data Quality Report

Orbit 40063

Creation date: 2024-06-27T22:11:52.836228
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/AS1A12_054T03_9000005516_40063cztM0_level2.fits modeM0/AS1A12_054T03_9000005516_40063cztM0_level2_quad_clean.evt
Size (bytes)1,183,150,080261,624,960
Size1.1 GB 249.5 MB
Events in quadrant A9,243,6201,764,463
Events in quadrant B8,704,1441,815,221
Events in quadrant C13,637,6771,657,898
Events in quadrant D10,921,7391,534,824

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0530
B0530
C0530
D0530

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03360
B03360
C03360
D03360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0375844
B0374863
C0513823
D0441165

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A166671701.019980%
B166673031.817964%
C1666711496.893862%
D166667694.614185%

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 25631 16671 118 118 0.46% 0.71%
B 25631 16671 160 160 0.62% 0.96%
C 25630 16670 949 949 3.70% 5.69%
D 25631 16670 622 622 2.43% 3.73%

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 1269009 3477.18 1808 1775 364.4
A 15 223 513585 1404.36 1808 1775 364.4
A 2 79 145717 394.96 1808 1775 364.4
B 4 171 1359366 3900.66 1800 1751 348.0
B 0 189 85630 241.0 1800 1751 348.0
B 0 230 82282 231.38 1800 1751 348.0
C 9 187 6031380 14890.61 1740 1750 404.9
C 15 214 668841 1647.43 1740 1750 404.9
C 14 254 99876 242.33 1740 1750 404.9
D 13 171 1280023 3006.8 1746 1697 425.1
D 12 227 845670 1985.14 1746 1697 425.1
D 13 249 677086 1588.61 1746 1697 425.1

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