14 January 2018
⇐20180113 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180115⇒

NOAA
2 Active Regions
12694
12695

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 E37N13
(-578",275") 		E52-E21
(31) 		2.1 -2.8 -2.6e33
2 W37N59
(307",862") 		W04-W67
(63) 		1.5 0.9 3.6e33
3 E38S69
(-213",-887") 		E64-E23
(41) 		0.9 -0.9 -2.1e33
4 W40S74
(168",-921") 		W05-W80
(75) 		0.5 -1.1 -2.3e33
5 W26N24
(384",466") 		W22-W29
(7) 		0.1 -1.2 -5.7e31
6 E13N02
(-217",112") 		E14-E12
(2) 		0.0 -1.3 -1.2e31
7 E02S05
(-37",-12") 		E04-E00
(4) 		0.0 -1.4 -9.7e30

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 14-Jan-2018 20:30 UT .