ASTROSAT CZTI

Data Quality Report

Orbit 09759

Creation date: 2024-06-27T15:50:18.752895
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_080T01_9000001392_09759cztM0_level2.evt modeM0/AS1A03_080T01_9000001392_09759cztM0_level2_quad_clean.evt
Size (bytes)502,090,56089,663,040
Size478.8 MB 85.5 MB
Events in quadrant A3,574,977553,137
Events in quadrant B3,757,690549,090
Events in quadrant C3,502,834555,969
Events in quadrant D3,860,828536,313

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0168161057
B0174101350
C0167041022
D0177181237

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0102
B0101
C0102
D0101

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016212
B01618
C01626
D016210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74933094.123849%
B74653344.474213%
C75082573.423015%
D74602783.726542%

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 8952 7854 0 0 0.00% 0.00%
B 8952 7853 9 9 0.10% 0.11%
C 8951 7855 0 0 0.00% 0.00%
D 8952 7864 7 7 0.08% 0.09%

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 14 111 36442 190.9 911 887 186.3
A 13 248 18289 93.43 911 887 186.3
A 15 239 12232 60.91 911 887 186.3
B 10 245 113005 638.81 906 882 175.5
B 0 214 62814 352.85 906 882 175.5
B 0 187 27621 152.34 906 882 175.5
C 8 222 8653 37.23 894 896 208.4
C 13 61 6676 27.74 894 896 208.4
C 14 67 4782 18.65 894 896 208.4
D 1 52 300652 1394.05 882 860 215.1
D 2 152 83001 381.96 882 860 215.1
D 8 195 59194 271.26 882 860 215.1

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