24 November 2013
⇐20131123 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20131125⇒

NOAA
4 Active Regions
11899
11903
11904
11905

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E17S52
(-170",-784") 		E37-W07
(44) 		1.2 -0.9 -9.9e32
2 E11N24
(-174",372") 		E18-E01
(17) 		0.8 7.2 1.6e33
3 E15N44
(-177",661") 		E26-W07
(33) 		0.6 1.0 3.2e32
4 W11S01
(181",-40") 		W06-W15
(9) 		0.3 -1.1 -5.5e31
5 W33N47
(357",699") 		W28-W40
(12) 		0.1 -0.5 -5.4e31
6 E38N62
(-285",843") 		E40-E32
(8) 		0.1 -0.9 -9.8e31
7 W14N53
(138",759") 		W10-W18
(8) 		0.1 -2.1 -9.1e31
8 W15S27
(226",-465") 		W12-W17
(5) 		0.1 -3.2 -6.0e31

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 24-Nov-2013 22:05 UT .