12 July 2018
⇐20180711 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180713⇒

NOAA
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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 E05N67
(-34",841") 		E82-W85
(167) 		3.7 1.0 5.3e21
2 W28S17
(424",-331") 		W01-W43
(42) 		3.0 -0.1 -8.2e19
3 W30N17
(447",224") 		W26-W32
(6) 		0.1 -0.7 -2.1e19
4 W08N27
(115",365") 		W04-W10
(6) 		0.1 -0.9 -1.6e19
5 W39N10
(592",110") 		W37-W42
(5) 		0.0 -0.6 -1.2e19

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 12-Jul-2018 23:10 UT .