9 February 2019
⇐20190208 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190210⇒

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 E05S51
(-51",-680") 		E53-W32
(85) 		15.5 -0.4 -3.4e21
2 E13S07
(-223",-11") 		E26-W02
(28) 		1.4 -0.1 -1.8e19
3 W25N57
(228",866") 		W03-W40
(37) 		1.2 0.9 2.1e21
4 W36S21
(540",-265") 		W32-W42
(10) 		0.1 -0.9 -4.0e19

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 9-Feb-2019 20:30 UT .