ASTROSAT CZTI

Data Quality Report

Orbit 14715

Creation date: 2024-06-27T16:58:50.089962
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/AS1A04_048T01_9000002176_14715cztM0_level2.evt modeM0/AS1A04_048T01_9000002176_14715cztM0_level2_quad_clean.evt
Size (bytes)481,844,160101,701,440
Size459.5 MB 97.0 MB
Events in quadrant A3,492,519668,906
Events in quadrant B3,376,108646,849
Events in quadrant C3,883,170648,544
Events in quadrant D3,384,901647,584

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145433
B0142532
C0157692
D0145202

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6718791.175945%
B6718831.235487%
C6718791.175945%
D6718751.116404%

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 7664 6719 0 0 0.00% 0.00%
B 7664 6719 1 1 0.01% 0.01%
C 7664 6719 2 2 0.03% 0.03%
D 7664 6719 9 9 0.12% 0.13%

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 12 189 48784 259.54 888 876 184.6
A 3 1 12133 60.98 888 876 184.6
A 9 143 10374 51.45 888 876 184.6
B 0 205 32174 190.45 853 833 164.6
B 12 111 18270 105.96 853 833 164.6
B 11 111 15741 90.59 853 833 164.6
C 3 233 515232 2531.09 851 860 203.2
C 0 207 15755 73.29 851 860 203.2
C 8 128 11994 54.79 851 860 203.2
D 13 104 24887 111.48 871 858 215.5
D 2 234 24794 111.05 871 858 215.5
D 2 120 13015 56.4 871 858 215.5

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