4 June 2015
⇐20150603 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150605⇒

NOAA
5 Active Regions
12356
12358
12359
12360
12357

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E20S26
(-298",-413") 		E37-E01
(36) 		2.4 -4.7 -3.6e33
2 E54S58
(-408",-799") 		E76-E55
(21) 		0.4 -0.7 -9.3e32
3 E00S14
(-3",-228") 		E02-W02
(4) 		0.1 -3.2 -5.1e31

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 4-Jun-2015 23:35 UT .