ASTROSAT CZTI

Data Quality Report

Orbit 32103

Creation date: 2024-06-27T20:36:30.456617
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/AS1T04_051T01_9000004686_32103cztM0_level2.evt modeM0/AS1T04_051T01_9000004686_32103cztM0_level2_quad_clean.evt
Size (bytes)729,599,04082,840,320
Size695.8 MB 79.0 MB
Events in quadrant A3,147,355552,577
Events in quadrant B9,805,027472,783
Events in quadrant C3,543,693531,007
Events in quadrant D5,175,286512,206

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131882
B0333422
C0143802
D0197922

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6290230.365660%
B6290220835.103339%
C62901752.782194%
D62901211.923688%

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 7470 6290 0 0 0.00% 0.00%
B 7470 6290 1580 1580 21.15% 25.12%
C 7470 6291 58 58 0.78% 0.92%
D 7470 6290 103 103 1.38% 1.64%

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 6 19280 114.88 810 797 160.9
A 13 254 12247 71.17 810 797 160.9
A 3 137 7608 42.33 810 797 160.9
B 10 245 4903653 35513.86 743 727 138.1
B 6 159 1663971 12047.54 743 727 138.1
B 5 172 121130 872.13 743 727 138.1
C 0 10 350315 1956.32 771 777 178.7
C 14 238 133862 744.86 771 777 178.7
C 4 175 20218 108.81 771 777 178.7
D 8 195 2139370 11558.81 777 755 185.0
D 2 234 29156 153.5 777 755 185.0
D 12 233 24773 129.81 777 755 185.0

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