ASTROSAT CZTI

Data Quality Report

Orbit 10679

Creation date: 2024-06-27T16:02:22.473262
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/AS1A03_097T01_9000001540_10679cztM0_level2.evt modeM0/AS1A03_097T01_9000001540_10679cztM0_level2_quad_clean.evt
Size (bytes)634,236,48092,600,640
Size604.9 MB 88.3 MB
Events in quadrant A7,299,960507,582
Events in quadrant B4,633,818627,260
Events in quadrant C2,857,295636,328
Events in quadrant D3,998,965601,554

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0259612
B0179411
C0127181
D0161291

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6166205533.327927%
B61664627.492702%
C6166691.119040%
D61661532.481349%

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 7286 6166 1945 1945 26.70% 31.54%
B 7286 6166 263 263 3.61% 4.27%
C 7286 6166 0 0 0.00% 0.00%
D 7286 6166 58 58 0.80% 0.94%

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 15 239 4795214 37975.36 624 610 126.3
A 13 251 27467 212.72 624 610 126.3
A 1 162 24540 189.54 624 610 126.3
B 4 239 1376822 9995.74 730 713 137.7
B 0 85 148028 1070.06 730 713 137.7
B 4 81 104749 755.69 730 713 137.7
C 14 234 8154 43.93 728 732 168.9
C 13 61 5423 27.77 728 732 168.9
C 14 67 5075 25.71 728 732 168.9
D 2 16 437046 2514.25 725 706 173.5
D 8 195 334809 1925.14 725 706 173.5
D 10 199 181002 1038.89 725 706 173.5

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