ASTROSAT CZTI

Data Quality Report

Orbit 06161

Creation date: 2024-06-27T15:03:35.918334
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/AS1A02_006T01_9000000802_06161cztM0_level2.evt modeM0/AS1A02_006T01_9000000802_06161cztM0_level2_quad_clean.evt
Size (bytes)445,979,52063,907,200
Size425.3 MB 60.9 MB
Events in quadrant A3,089,918372,126
Events in quadrant B3,543,929366,272
Events in quadrant C3,266,358376,715
Events in quadrant D3,159,558362,141

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146061013
B0159961302
C0153091044
D0149561025

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01466
B014513
C014616
D014513

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0182
B0181
C0181
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6559941.433145%
B65191742.669121%
C6588861.305404%
D6573841.277955%

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 8901 6859 0 0 0.00% 0.00%
B 8900 6856 53 53 0.60% 0.77%
C 8897 6896 6 6 0.07% 0.09%
D 8901 6866 5 5 0.06% 0.07%

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 8 15 79066 486.8 782 764 160.8
A 0 226 7612 42.57 782 764 160.8
A 12 194 7477 41.73 782 764 160.8
B 3 64 355193 2359.26 780 760 150.2
B 0 219 119969 793.51 780 760 150.2
B 4 80 24041 154.97 780 760 150.2
C 12 16 172793 956.19 774 774 179.9
C 1 16 39305 214.18 774 774 179.9
C 9 16 17158 91.07 774 774 179.9
D 12 110 94692 498.24 770 745 188.6
D 5 97 71958 377.67 770 745 188.6
D 8 195 30548 158.06 770 745 188.6

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