ASTROSAT CZTI

Data Quality Report

Orbit 30229

Creation date: 2024-06-27T20:12:26.221918
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_007T01_9000004350_30229cztM0_level2.evt modeM0/AS1A10_007T01_9000004350_30229cztM0_level2_quad_clean.evt
Size (bytes)632,108,16085,455,360
Size602.8 MB 81.5 MB
Events in quadrant A3,969,472519,707
Events in quadrant B5,825,303521,645
Events in quadrant C4,072,330511,011
Events in quadrant D4,758,020502,459

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166551
B0233215
C0167561
D0188311

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76532202.874690%
B76522743.580763%
C76522643.450078%
D76533104.050699%

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 7743 7655 34 34 0.44% 0.44%
B 7742 7654 3 3 0.04% 0.04%
C 7742 7654 4 4 0.05% 0.05%
D 7743 7654 113 113 1.46% 1.48%

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 14 239 270371 1385.89 957 936 194.4
A 13 254 14293 68.7 957 936 194.4
A 3 137 10143 47.36 957 936 194.4
B 6 159 2098456 11350.32 936 913 184.8
B 12 111 23180 120.49 936 913 184.8
B 11 111 21324 110.45 936 913 184.8
C 3 233 330999 1518.4 912 919 217.4
C 14 238 154053 704.43 912 919 217.4
C 2 114 17870 77.98 912 919 217.4
D 1 52 858414 3703.88 924 900 231.5
D 8 195 297196 1279.8 924 900 231.5
D 2 250 45179 191.25 924 900 231.5

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