ASTROSAT CZTI

Data Quality Report

Orbit 10860

Creation date: 2024-06-27T16:04:49.898009
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/AS1A03_118T01_9000001570_10860cztM0_level2.evt modeM0/AS1A03_118T01_9000001570_10860cztM0_level2_quad_clean.evt
Size (bytes)689,002,560104,457,600
Size657.1 MB 99.6 MB
Events in quadrant A6,798,192630,860
Events in quadrant B5,337,935657,384
Events in quadrant C3,515,147682,074
Events in quadrant D4,685,049647,838

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0256233
B0212232
C0162342
D0191132

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A782995512.198237%
B78296217.932048%
C7829680.868566%
D78291331.698812%

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 8389 7831 529 529 6.31% 6.76%
B 8388 7830 290 290 3.46% 3.70%
C 8389 7831 0 0 0.00% 0.00%
D 8389 7831 59 59 0.70% 0.75%

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 8 5 3273062 18091.39 878 855 180.9
A 15 223 56282 306.44 878 855 180.9
A 13 251 28373 152.14 878 855 180.9
B 4 239 1615170 9173.91 906 882 176.0
B 3 189 48108 268.38 906 882 176.0
B 0 214 44525 248.02 906 882 176.0
C 8 128 10013 43.85 894 899 207.8
C 13 61 6852 28.64 894 899 207.8
C 8 112 6550 27.19 894 899 207.8
D 8 195 651748 3008.96 891 863 216.3
D 1 52 272775 1257.01 891 863 216.3
D 7 71 82864 379.08 891 863 216.3

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