28 February 2017
⇐20170227 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170301⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E01S49
(-12",-647") 		E64-W38
(102) 		14.7 -1.4 -9.4e33
2 E40S02
(-625",66") 		E58-E15
(43) 		1.7 0.9 6.3e32

Note: Solar Monitor's coronal hole segmentations are performed by CHIMERA, a copy of which is available at: github.com/TCDSolar/CHIMERA.

The operations of the CHIMERA algorithm is described in a peer reviewed paper: arxiv.org/abs/1711.11476.

An extensive copy of coronal hole properties are available at: solarmonitor.org/data.

The latest positions of the coronal holes are given in heliocentric co-ordinates, and the region positions are valid on 28-Feb-2017 20:30 UT .