ASTROSAT CZTI

Data Quality Report

Orbit 45788

Creation date: 2024-06-27T23:16:11.001647
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/AS1T05_088T01_9000006126_45788cztM0_level2.fits modeM0/AS1T05_088T01_9000006126_45788cztM0_level2_quad_clean.evt
Size (bytes)485,907,84074,502,720
Size463.4 MB 71.1 MB
Events in quadrant A4,671,444509,733
Events in quadrant B3,801,722513,176
Events in quadrant C4,275,418462,334
Events in quadrant D4,861,483429,511

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0174621
B0146431
C0161111
D0178451

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A48582004.116921%
B48583046.257719%
C485866613.709345%
D485853511.012762%

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 5353 4859 78 78 1.46% 1.61%
B 5353 4859 130 130 2.43% 2.68%
C 5353 4859 608 608 11.36% 12.51%
D 5353 4859 351 351 6.56% 7.22%

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 10 83 2214222 19825.44 534 522 111.7
A 9 191 294264 2630.69 534 522 111.7
A 14 235 32583 287.13 534 522 111.7
B 3 112 1213401 11508.75 529 513 105.4
B 5 172 97483 920.12 529 513 105.4
B 0 189 83394 786.43 529 513 105.4
C 12 2 2029032 16774.81 506 509 120.9
C 14 254 231341 1908.86 506 509 120.9
C 2 14 24698 200.03 506 509 120.9
D 11 241 1500922 11497.04 508 491 130.5
D 2 249 554019 4241.4 508 491 130.5
D 12 2 370847 2837.85 508 491 130.5

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