27 June 2015
⇐20150626 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150628⇒

NOAA
1 Active Region
12371

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W41N43
(452",618") 		W10-W57
(47) 		2.6 1.5 3.2e33
2 E35N29
(-478",428") 		E42-E26
(16) 		0.4 0.5 1.0e32
3 E08S11
(-135",-225") 		E12-E04
(8) 		0.3 21.2 1.3e33

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 27-Jun-2015 23:35 UT .