ASTROSAT CZTI

Data Quality Report

Orbit 09573

Creation date: 2024-06-27T15:47:55.424112
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/AS1G07_042T01_9000001360_09573cztM0_level2.evt modeM0/AS1G07_042T01_9000001360_09573cztM0_level2_quad_clean.evt
Size (bytes)443,010,24095,472,000
Size422.5 MB 91.0 MB
Events in quadrant A3,638,612612,340
Events in quadrant B3,142,970621,247
Events in quadrant C3,005,929613,238
Events in quadrant D3,185,698590,179

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A051
B052
C052
D052

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0183813223
B0165382823
C0161312690
D0171653240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016024
B016032
C016026
D015923

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6494971.493686%
B6522801.226618%
C6503360.553591%
D6476540.833848%

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 8343 7049 1 1 0.01% 0.01%
B 8343 7099 5 5 0.06% 0.07%
C 8343 7078 0 0 0.00% 0.00%
D 8343 7031 11 11 0.13% 0.16%

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 1 162 248252 1557.77 779 763 158.9
A 1 178 127672 798.8 779 763 158.9
A 1 161 120666 754.71 779 763 158.9
B 4 80 50940 327.88 790 769 153.0
B 12 111 17257 107.75 790 769 153.0
B 11 111 14010 86.53 790 769 153.0
C 9 68 11460 59.82 767 775 178.6
C 13 61 5724 27.71 767 775 178.6
C 7 221 2788 11.27 767 775 178.6
D 1 52 164370 872.84 755 737 187.5
D 7 71 80567 425.82 755 737 187.5
D 2 234 32999 172.09 755 737 187.5

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