ASTROSAT CZTI

Data Quality Report

Orbit 06365

Creation date: 2024-06-27T15:06:12.512569
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_124T01_9000000842_06365cztM0_level2.evt modeM0/AS1A02_124T01_9000000842_06365cztM0_level2_quad_clean.evt
Size (bytes)523,624,32099,656,640
Size499.4 MB 95.0 MB
Events in quadrant A3,550,659636,836
Events in quadrant B4,210,587637,800
Events in quadrant C3,452,077635,856
Events in quadrant D4,162,400612,568

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152343
B0170492
C0150392
D0168842

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7099340.478941%
B70992423.408931%
C7099640.901535%
D70991662.338358%

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 9104 7100 0 0 0.00% 0.00%
B 9104 7100 129 129 1.42% 1.82%
C 9104 7101 22 22 0.24% 0.31%
D 9104 7100 114 114 1.25% 1.61%

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 15 236 308968 1834.33 827 809 168.0
A 8 15 45211 264.31 827 809 168.0
A 13 251 11111 61.32 827 809 168.0
B 0 228 778164 4939.06 831 811 157.4
B 0 229 110736 698.43 831 811 157.4
B 5 250 35017 217.33 831 811 157.4
C 4 254 241859 1273.87 815 817 189.2
C 1 241 24901 127.28 815 817 189.2
C 13 61 6448 29.76 815 817 189.2
D 2 63 502029 2541.88 804 776 197.2
D 4 95 409768 2074.02 804 776 197.2
D 2 152 107391 540.65 804 776 197.2

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