ASTROSAT CZTI

Data Quality Report

Orbit 06730

Creation date: 2024-06-27T15:10:52.973905
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/AS1C02_003T01_9000000924_06730cztM0_level2.evt modeM0/AS1C02_003T01_9000000924_06730cztM0_level2_quad_clean.evt
Size (bytes)1,932,785,280416,675,520
Size1.8 GB 397.4 MB
Events in quadrant A13,690,4262,691,670
Events in quadrant B14,064,5242,714,965
Events in quadrant C13,399,5482,643,573
Events in quadrant D15,387,4252,544,586

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0650
B0650
C0650
D0650

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06020
B06020
C06020
D06020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0612597
B0620786
C0608346
D0654866

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A294773641.234861%
B294774301.458764%
C294772820.956678%
D294774701.594463%

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 36017 29482 0 0 0.00% 0.00%
B 36017 29482 47 47 0.13% 0.16%
C 36017 29482 12 12 0.03% 0.04%
D 36017 29482 195 195 0.54% 0.66%

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 14 111 125010 173.76 3487 3418 699.8
A 8 15 123868 172.13 3487 3418 699.8
A 0 226 32995 42.27 3487 3418 699.8
B 10 252 346744 518.79 3521 3442 661.7
B 12 111 69073 99.18 3521 3442 661.7
B 4 81 65495 93.77 3521 3442 661.7
C 12 16 50385 59.96 3395 3417 783.3
C 9 247 37135 43.04 3395 3417 783.3
C 7 223 34734 39.98 3395 3417 783.3
D 8 195 1324918 1619.5 3359 3261 816.1
D 2 33 433669 527.4 3359 3261 816.1
D 2 14 235953 285.13 3359 3261 816.1

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