ASTROSAT CZTI

Data Quality Report

Orbit 30337

Creation date: 2024-06-27T20:13:53.947524
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/AS1A10_053T13_9000004360_30337cztM0_level2.evt modeM0/AS1A10_053T13_9000004360_30337cztM0_level2_quad_clean.evt
Size (bytes)501,802,56068,207,040
Size478.6 MB 65.0 MB
Events in quadrant A3,233,118420,646
Events in quadrant B4,864,274421,829
Events in quadrant C3,271,442397,471
Events in quadrant D3,413,372397,875

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134841
B0186901
C0135041
D0139461

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6122691.127083%
B61231121.829169%
C61221442.352172%
D6122871.421104%

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 7262 6122 1 1 0.01% 0.02%
B 7263 6123 0 0 0.00% 0.00%
C 7262 6122 0 0 0.00% 0.00%
D 7262 6122 36 36 0.50% 0.59%

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 5 203 81611 500.64 812 797 161.4
A 13 254 11014 63.29 812 797 161.4
A 14 239 10909 62.64 812 797 161.4
B 6 159 1674239 11070.13 798 780 151.2
B 6 36 40816 264.84 798 780 151.2
B 0 190 23624 151.12 798 780 151.2
C 14 238 146921 828.5 761 767 176.4
C 3 233 108959 613.31 761 767 176.4
C 14 254 30602 169.13 761 767 176.4
D 2 250 187930 1016.74 777 758 184.1
D 8 195 141769 765.99 777 758 184.1
D 13 249 82095 441.83 777 758 184.1

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