ASTROSAT CZTI

Data Quality Report

Orbit 40216

Creation date: 2024-06-27T22:13:42.183019
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/AS1C07_001T01_9000005532_40216cztM0_level2.fits modeM0/AS1C07_001T01_9000005532_40216cztM0_level2_quad_clean.evt
Size (bytes)288,838,08084,847,680
Size275.5 MB 80.9 MB
Events in quadrant A3,256,303536,816
Events in quadrant B2,205,412588,242
Events in quadrant C2,387,632574,174
Events in quadrant D2,456,151522,749

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129483
B0101052
C0103352
D0110012

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A49503006.060606%
B495030.060606%
C4950220.444444%
D4950490.989899%

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 9166 4952 212 212 2.31% 4.28%
B 9166 4952 0 0 0.00% 0.00%
C 9166 4952 19 19 0.21% 0.38%
D 9166 4952 47 47 0.51% 0.95%

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 13 248 860261 8223.87 514 504 104.5
A 10 83 404344 3862.87 514 504 104.5
A 3 137 5628 49.01 514 504 104.5
B 0 245 46113 444.67 533 519 102.5
B 5 255 40598 390.89 533 519 102.5
B 12 111 12421 116.08 533 519 102.5
C 15 214 214036 1744.0 526 529 122.4
C 0 10 84588 686.62 526 529 122.4
C 9 187 21636 172.41 526 529 122.4
D 12 227 166881 1328.78 514 501 125.2
D 13 249 78747 624.91 514 501 125.2
D 1 47 71428 566.45 514 501 125.2

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