8 April 2015
⇐20150407 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150409⇒

NOAA
4 Active Regions
12318
12320
12316
12319

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E20S73
(-93",-886") 		E85-W77
(162) 		1.8 -0.9 -3.7e33
2 E62S38
(-667",-554") 		E72-E50
(22) 		0.8 -1.5 -1.9e33
3 W36N01
(560",102") 		W27-W44
(17) 		0.7 -3.0 -8.0e32
4 W05N11
(81",277") 		W02-W08
(6) 		0.2 -3.3 -1.2e32
5 E02N15
(-35",343") 		E04-W00
(4) 		0.0 -7.8 -9.3e31

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 8-Apr-2015 23:35 UT .