ASTROSAT CZTI

Data Quality Report

Orbit 19065

Creation date: 2024-06-27T17:58:40.801731
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/AS1A05_046T01_9000002834_19065cztM0_level2.evt modeM0/AS1A05_046T01_9000002834_19065cztM0_level2_quad_clean.evt
Size (bytes)485,481,60084,769,920
Size463.0 MB 80.8 MB
Events in quadrant A2,999,237540,421
Events in quadrant B3,385,161553,399
Events in quadrant C3,169,479538,492
Events in quadrant D4,721,908495,457

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129071
B0141181
C0132591
D0181161

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6288440.699746%
B6289981.558276%
C6289891.415169%
D62893645.787884%

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 7273 6289 0 0 0.00% 0.00%
B 7274 6290 20 20 0.27% 0.32%
C 7274 6290 14 14 0.19% 0.22%
D 7274 6290 257 257 3.53% 4.09%

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 13 254 7270 40.98 778 761 158.8
A 0 226 6815 38.12 778 761 158.8
A 3 137 5828 31.9 778 761 158.8
B 7 220 111878 754.68 775 757 147.2
B 6 36 98649 664.84 775 757 147.2
B 4 216 40422 269.39 775 757 147.2
C 14 238 116395 651.06 754 760 177.6
C 3 233 112299 628.0 754 760 177.6
C 13 61 5260 25.33 754 760 177.6
D 12 218 1067017 5820.18 751 731 183.2
D 1 20 517775 2822.22 751 731 183.2
D 1 52 108874 590.28 751 731 183.2

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter