ASTROSAT CZTI

Data Quality Report

Orbit 13132

Creation date: 2024-06-27T16:36:45.070369
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/AS1A04_053T05_9000001936_13132cztM0_level2.evt modeM0/AS1A04_053T05_9000001936_13132cztM0_level2_quad_clean.evt
Size (bytes)126,000,00031,962,240
Size120.2 MB 30.5 MB
Events in quadrant A851,771208,103
Events in quadrant B1,234,859206,294
Events in quadrant C808,313218,271
Events in quadrant D798,500205,706

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A037882
B048631
C037361
D037261

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A17571186.715993%
B175723313.261241%
C1757452.561184%
D1757673.813318%

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 1983 1759 0 0 0.00% 0.00%
B 1983 1759 68 68 3.43% 3.87%
C 1983 1759 1 1 0.05% 0.06%
D 1983 1759 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 4 2 14980 325.53 213 207 45.4
A 12 189 14295 310.44 213 207 45.4
A 0 226 2008 39.69 213 207 45.4
B 4 239 352990 8436.56 204 198 41.8
B 0 85 39875 948.82 204 198 41.8
B 3 64 28330 672.74 204 198 41.8
C 12 4 6722 135.19 204 203 48.2
C 8 128 3724 73.02 204 203 48.2
C 8 112 1751 32.1 204 203 48.2
D 1 52 19284 374.96 203 195 50.9
D 2 234 6452 122.9 203 195 50.9
D 2 69 4289 80.42 203 195 50.9

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