ASTROSAT CZTI

Data Quality Report

Orbit 46010

Creation date: 2024-06-27T23:18:43.201423
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/AS1A13_033T01_9000006152_46010cztM0_level2.fits modeM0/AS1A13_033T01_9000006152_46010cztM0_level2_quad_clean.evt
Size (bytes)623,833,920103,861,440
Size594.9 MB 99.0 MB
Events in quadrant A5,730,129733,870
Events in quadrant B9,796,451541,269
Events in quadrant C2,981,713765,214
Events in quadrant D4,094,411663,774

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0212332
B0334832
C0132022
D0165982

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63172463.894254%
B6317247739.211651%
C6317540.854836%
D63172934.638278%

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 7552 6317 38 38 0.50% 0.60%
B 7551 6316 2298 2298 30.43% 36.38%
C 7552 6318 2 2 0.03% 0.03%
D 7552 6317 195 195 2.58% 3.09%

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 10 83 2839166 18338.19 745 731 154.8
A 13 254 10335 62.05 745 731 154.8
A 13 6 8803 52.15 745 731 154.8
B 3 112 7074426 54539.92 667 647 129.7
B 4 171 31825 240.38 667 647 129.7
B 0 199 22554 168.9 667 647 129.7
C 14 254 31694 176.65 749 756 175.1
C 2 14 9223 48.34 749 756 175.1
C 12 2 7803 40.24 749 756 175.1
D 2 249 620263 3382.84 727 705 183.1
D 1 52 519985 2835.31 727 705 183.1
D 3 13 30013 160.02 727 705 183.1

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