ASTROSAT CZTI

Data Quality Report

Orbit 03606

Creation date: 2024-06-27T14:32:06.311395
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_9000000473_03606cztM0_level2.evt modeM0/AS1SLEW_01234_9000000473_03606cztM0_level2_quad_clean.evt
Size (bytes)22,896,0006,491,520
Size21.8 MB 6.2 MB
Events in quadrant A150,19040,141
Events in quadrant B173,14139,633
Events in quadrant C160,80240,245
Events in quadrant D178,28839,770

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08040
B08070
C08090
D08860

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A40200.000000%
B40200.000000%
C40200.000000%
D40261.492537%

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 402 402 0 0 0.00% 0.00%
B 402 402 0 0 0.00% 0.00%
C 402 402 0 0 0.00% 0.00%
D 402 402 5 5 1.24% 1.24%

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 15 501 45.7 38 37 10.2
A 12 194 414 37.13 38 37 10.2
A 0 226 391 34.86 38 37 10.2
B 15 204 15531 1604.42 39 38 9.7
B 4 81 1945 197.48 39 38 9.7
B 0 228 1325 133.28 39 38 9.7
C 15 208 5664 513.86 38 38 10.9
C 2 53 2520 226.7 38 38 10.9
C 13 61 301 24.02 38 38 10.9
D 13 223 30458 2807.33 37 36 10.8
D 13 46 3047 277.85 37 36 10.8
D 2 14 1533 138.14 37 36 10.8

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