ASTROSAT CZTI

Data Quality Report

Orbit 03459

Creation date: 2024-06-27T14:29:27.848124
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/AS1SLEW_01234_9000000457_03459cztM0_level2.evt modeM0/AS1SLEW_01234_9000000457_03459cztM0_level2_quad_clean.evt
Size (bytes)39,205,44012,401,280
Size37.4 MB 11.8 MB
Events in quadrant A276,81479,447
Events in quadrant B290,60579,906
Events in quadrant C287,48181,233
Events in quadrant D281,65178,292

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013840
B013890
C013890
D014140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69300.000000%
B69300.000000%
C69300.000000%
D69300.000000%

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 693 693 0 0 0.00% 0.00%
B 693 693 0 0 0.00% 0.00%
C 693 693 0 0 0.00% 0.00%
D 693 693 0 0 0.00% 0.00%

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 15 970 54.21 71 70 16.6
A 0 226 745 40.66 71 70 16.6
A 12 194 708 38.43 71 70 16.6
B 15 204 4751 291.17 73 72 16.1
B 12 111 1024 59.24 73 72 16.1
B 0 219 988 57.0 73 72 16.1
C 9 144 3051 160.91 72 72 18.5
C 15 208 2098 109.43 72 72 18.5
C 13 61 617 29.44 72 72 18.5
D 10 199 8844 457.44 70 67 19.2
D 1 31 3013 153.54 70 67 19.2
D 13 239 1847 92.77 70 67 19.2

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
Veto Counter