Comments: Interesting 'spiral' structure in the GRS (material curving out of GRS area?), also visible in R frames

[Add observation]

Observation 1
Feature(s)	GRS
Filter(s)	ir
Date	2018-02-05 19:08:00
Julian day	2458155.297222222
System I	326.98°
System II	266.9°
System III	106.81°
Illumination	99.0%
Phase angle	10.399999618530273°
Solar longitude	300.7°
Eq. diameter	36.24″
Derotation	4.0 min