7 May 2018
⇐20180506 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180508⇒

NOAA
1 Active Region
12708

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 W35N15
(528",287") 		E33-W76
(109) 		12.6 -0.8 -4.1e33
2 W30N59
(244",838") 		E29-W64
(93) 		2.9 0.8 4.4e33
3 W35S73
(157",-897") 		E25-W77
(102) 		0.9 -1.1 -3.4e33
4 E51S73
(-215",-897") 		E69-E30
(39) 		0.2 -1.8 -1.7e33

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 7-May-2018 15:30 UT .