ASTROSAT CZTI

Data Quality Report

Orbit 47547

Creation date: 2024-07-13T20:47:43.219922
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_002T01_9000006334_47547cztM0_level2.fits modeM0/AS1C09_002T01_9000006334_47547cztM0_level2_quad_clean.evt
Size (bytes)422,377,920106,879,680
Size402.8 MB 101.9 MB
Events in quadrant A6,400,905713,765
Events in quadrant B2,912,839738,819
Events in quadrant C2,669,192708,222
Events in quadrant D3,184,359655,621

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0234091
B0126673
C0122812
D0136271

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60232494.134152%
B60231051.743317%
C6023500.830151%
D6023731.212021%

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 7253 6023 43 43 0.59% 0.71%
B 7254 6024 14 14 0.19% 0.23%
C 7253 6024 1 1 0.01% 0.02%
D 7253 6024 17 17 0.23% 0.28%

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 3558485 24930.41 697 683 142.7
A 9 191 135986 948.1 697 683 142.7
A 3 137 7418 47.19 697 683 142.7
B 0 190 51478 380.24 697 677 133.6
B 4 171 30783 225.34 697 677 133.6
B 5 172 17413 125.27 697 677 133.6
C 14 254 5352 29.62 681 684 157.6
C 2 80 4682 25.37 681 684 157.6
C 13 61 4607 24.89 681 684 157.6
D 2 249 134494 786.79 684 661 170.1
D 2 165 127716 746.94 684 661 170.1
D 12 2 79837 465.47 684 661 170.1

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