ASTROSAT CZTI

Data Quality Report

Orbit 19213

Creation date: 2024-06-27T18:00:18.664935
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/AS1A05_063T03_9000002840_19213cztM0_level2.evt modeM0/AS1A05_063T03_9000002840_19213cztM0_level2_quad_clean.evt
Size (bytes)544,112,640106,404,480
Size518.9 MB 101.5 MB
Events in quadrant A3,479,033672,269
Events in quadrant B3,604,134689,982
Events in quadrant C5,391,837665,500
Events in quadrant D3,485,248663,386

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156203
B0157932
C0216682
D0158732

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76381141.492537%
B76381572.055512%
C76382272.971982%
D7638690.903378%

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 7953 7638 0 0 0.00% 0.00%
B 7953 7639 3 3 0.04% 0.04%
C 7953 7639 0 0 0.00% 0.00%
D 7953 7639 6 6 0.08% 0.08%

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 13 254 11248 56.21 902 880 184.4
A 3 137 7719 37.08 902 880 184.4
A 0 226 7678 36.86 902 880 184.4
B 12 111 21640 119.45 904 879 173.8
B 0 190 20816 114.71 904 879 173.8
B 11 111 19029 104.43 904 879 173.8
C 3 233 1860905 9225.43 865 871 201.6
C 14 238 132994 655.31 865 871 201.6
C 8 128 14656 68.37 865 871 201.6
D 1 52 96089 445.03 879 850 214.0
D 2 234 30607 139.05 879 850 214.0
D 11 176 28372 128.6 879 850 214.0

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