27 November 2018
⇐20181126 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20181128⇒

NOAA
1 Active Region
12728

Flare Forecast
Flare Prediction System
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E21S02
(-351",-52") 		E45-W08
(53) 		9.6 0.8 1.7e21
2 W40N69
(224",901") 		E60-W60
(120) 		1.4 0.9 4.4e21
3 W42S70
(229",-917") 		W01-W57
(56) 		0.5 -0.8 -2.4e21
4 W06S01
(97",-37") 		E00-W10
(10) 		0.3 3.0 1.6e20
5 E43N55
(-378",788") 		E44-E39
(5) 		0.0 2.4 1.5e20

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-Nov-2018 20:30 UT .