ASTROSAT CZTI

Data Quality Report

Orbit 09623

Creation date: 2024-06-27T15:48:32.655829
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_009T01_9000001366_09623cztM0_level2.evt modeM0/AS1A03_009T01_9000001366_09623cztM0_level2_quad_clean.evt
Size (bytes)417,389,76064,261,440
Size398.1 MB 61.3 MB
Events in quadrant A2,874,654391,355
Events in quadrant B2,961,941394,464
Events in quadrant C2,842,607393,074
Events in quadrant D3,568,505363,187

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012814
B012810
C012810
D012810

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013195988
B0133981017
C0132081061
D0156991446

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5797520.897016%
B5793651.122044%
C5767510.884342%
D57201843.216783%

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 7506 6054 0 0 0.00% 0.00%
B 7506 6065 6 6 0.08% 0.10%
C 7506 6064 0 0 0.00% 0.00%
D 7506 6018 98 98 1.31% 1.63%

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 3 1 6911 41.15 745 731 150.2
A 0 226 6905 41.11 745 731 150.2
A 12 194 6210 36.49 745 731 150.2
B 0 214 47552 338.47 742 726 138.3
B 10 252 25186 176.8 742 726 138.3
B 12 111 14871 102.24 742 726 138.3
C 13 61 5374 27.8 728 733 166.9
C 3 202 1829 6.57 728 733 166.9
C 14 67 1760 6.15 728 733 166.9
D 1 52 375002 2089.43 708 694 179.1
D 8 195 213659 1188.79 708 694 179.1
D 7 71 174962 972.78 708 694 179.1

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