26 January 2015
⇐20150125 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150127⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E23S65
(-166",-841") 		E76-W74
(150) 		4.9 -0.8 -5.0e33
2 W08S15
(130",-163") 		W05-W12
(7) 		0.4 13.3 9.7e32
3 W37N18
(561",373") 		W35-W39
(4) 		0.1 -1.2 -3.4e31

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 26-Jan-2015 22:35 UT .