**Table 1:** Software aperture polarimetry of the reflection knots in S87E and S87W.
Knot	$\Delta$ x^a	$\Delta$ y^a	Aperture^b	P_J	$\theta_{J}$	P_H	$\theta_{H}$	P_K	$\theta_{K}$
	(arcsec)	(arcsec)	(arcsec)	(%)	(deg)	(%)	(deg)	(%)	(deg)
DES-S87E	6.0	-2.1	5.0	$7\pm0.25$	21	$3\pm0.8$	11	$2\pm0.7$	89
A	12.6	-1.0	6.0	$25\pm1.2$	19	$10\pm1.6$	6	$7\pm1.5$	5
B	1.5	4.5	6.0	$22\pm2.5$	47	$13\pm1.4$	44	$11\pm2.3$	43
C	4.8	-14.8	8.0	$32\pm1.5$	107	$20\pm4.5$	106	$16\pm1.2$	91
D	-78.5	5.8	6.0	$31\pm1.5$	86	$22\pm2.0$	97	$12\pm1.2$	98
E	-79.0	-3.7	6.0	$29\pm3.8$	88	$19\pm2.4$	92	$18\pm1.8$	79

^a

K

^b

Source LaTeX | All tables | In the text