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Table 1.

Observational maps used for the comparison.

Map Θ(a) Date UT Xcen (b) Ycen (c) σQ(d) [×104] σU(e) [×104] σV(f) [×104]
A 2007 Sep. 10 08:00 −3 7 8.3 8.2 7.7
B 10° 2007 Sep. 15 12:44 3 −196 8.3 8.2 7.8
C 20° 2007 Sep. 15 15:34 1 −319 8.3 8.3 7.8
D 30° 2007 Sep. 16 12:31 1 −469 8.6 8.5 8.0
E 40° 2007 Sep. 16 15:34 0 −619 9.0 8.9 8.4
F 40° 2007 Sep. 08 15:34 587 13 9.0 8.9 8.4
G 50° 2007 Sep. 09 07:05 808 14 9.5 9.4 9.0
G 60° 2007 Sep. 09 07:05 808 14 10.0 10.0 9.6
H 50° 2007 Sep. 06 07:04 −798 12 9.6 9.6 8.9
H 60° 2007 Sep. 06 07:04 −798 12 10.4 10.3 9.6

Notes.

(a)

Map average viewing angle Θ.

(b)

arcseconds east of disk center to map center.

(c)

Arcseconds north of disk center to map center.

(d)

Inferred noise of Q.

(e)

Inferred noise of U.

(f)

Inferred noise of V.

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