Ring Analysis Problems to address (before HMI). Problems to address for Ring Analysis P angle misalignment: washing machine effect P angle misalignment:

Ring AnalysisRing AnalysisProblems to address Problems to address

(before HMI)(before HMI)

Problems to address for Ring Problems to address for Ring AnalysisAnalysis

P angle misalignment: washing machine P angle misalignment: washing machine

effecteffect

Foreshortening: the BForeshortening: the B00 angle effect angle effect

Distortion and camera tipDistortion and camera tip

Magnetic activityMagnetic activity

FittingFitting

Different Patch Sizes: particular problemsDifferent Patch Sizes: particular problems

Time-delay effect (?)Time-delay effect (?)

3-D Inversions3-D Inversions

P angle MisalignmentP angle Misalignment

Courtesy of C. Toner

Courtesy of R. Komm

Washing machine effectWashing machine effect

Washing machine effectWashing machine effectMt. Wilson

Differences

Courtesy of C. Rabello-Soares

MDI misalignment: meridional flows MDI misalignment: meridional flows errorserrors

Courtesy of C. Rabello-Soares

Foreshortening: BForeshortening: B00 angle angle effecteffect

BB00 angle effect angle effect

BB00 angle effect angle effect

Distortion and camera tipDistortion and camera tip

Courtesy of C. Rabello-Soares

Magnetic activityMagnetic activity

Fitting methodFitting method

Courtesy of S. Tripathy

Symmetric Asymmetric

Small-patch ringsSmall-patch rings

Number of ModesNumber of Modes TrackingTracking FittingFitting

Courtesy of D. Haber

Large-patch ringsLarge-patch rings

ForeshorteningForeshortening TrackingTracking Plane-wave Plane-wave

approximationapproximation

Other issuesOther issues

Time DelayTime Delay 3-D Inversions3-D Inversions