7 October 2020
⇐20201006 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20201008⇒

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 E02N03
(-33",-60") 		E24-W21
(45) 		4.8 -0.2 -1.4e20
2 E30S02
(-474",-119") 		E40-E15
(25) 		2.2 -0.4 -1.7e20
3 E15N70
(-85",865") 		E74-W84
(158) 		2.1 1.1 8.5e20
4 E27S60
(-213",-876") 		E63-W19
(82) 		2.0 -0.7 -6.1e20
5 W27N23
(397",279") 		W22-W31
(9) 		0.2 0.9 4.1e19
6 W22S25
(327",-498") 		W16-W27
(11) 		0.2 -1.1 -4.3e19
7 E46N02
(-688",-36") 		E49-E43
(6) 		0.1 0.4 7.4e18
8 W43S35
(535",-607") 		W39-W45
(6) 		0.1 -0.7 -1.3e19
9 W27S15
(418",-337") 		W24-W30
(6) 		0.0 -2.9 -2.0e19

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 7-Oct-2020 23:30 UT .