19 July 2015
⇐20150718 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150720⇒

NOAA
4 Active Regions
12384
12386
12387
12388

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E32N50
(-323",685") 		E53-W11
(64) 		6.4 1.0 4.7e33
2 W19S14
(292",-294") 		W04-W24
(20) 		0.8 2.0 4.4e32
3 W37N08
(570",64") 		W33-W42
(9) 		0.3 8.0 8.6e32
4 E18S72
(-91",-918") 		E36-W19
(55) 		0.2 -0.7 -9.4e32
5 W29N01
(452",-53") 		W27-W30
(3) 		0.0 3.7 4.2e31

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 19-Jul-2015 15:35 UT .