10 October 2018
⇐20181009 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20181011⇒

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 E18S25
(-267",-492") 		E32-W07
(39) 		7.7 -0.8 -2.4e21
2 W23N72
(119",879") 		E81-W59
(140) 		2.4 1.2 5.9e21
3 E27S63
(-194",-897") 		E52-E09
(43) 		0.5 -1.0 -1.7e21
4 E19N07
(-313",11") 		E21-E17
(4) 		0.0 -1.9 -2.1e19

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 10-Oct-2018 23:10 UT .