28 November 2017
⇐20171127 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20171129⇒

NOAA
1 Active Region
12689

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 W34S32
(466",-528") 		W07-W48
(41) 		2.9 -1.5 -2.4e33
2 W03S63
(21",-879") 		E63-W63
(126) 		2.3 -1.0 -3.7e33
3 E30S20
(-457",-348") 		E51-E08
(43) 		2.0 0.2 1.2e32
4 E50N30
(-641",480") 		E68-E32
(36) 		1.8 1.6 2.6e33
5 E46N61
(-342",841") 		E73-E29
(44) 		0.8 0.9 1.6e33

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 28-Nov-2017 20:30 UT .