19 January 2020
⇐20200118 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200120⇒

NOAA
0 Active Regions

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 W19S71
(104",-894") 		E61-W84
(145) 		2.3 -0.7 -3.4e21
2 E13N66
(-90",923") 		E49-W43
(92) 		0.8 0.9 2.3e21
3 W27S28
(388",-385") 		W24-W30
(6) 		0.2 -1.6 -1.1e20
4 W31S13
(485",-144") 		W26-W33
(7) 		0.2 -1.2 -6.7e19
5 W42S06
(651",-33") 		W38-W46
(8) 		0.1 -0.8 -3.6e19
6 W07S17
(120",-203") 		W05-W09
(4) 		0.1 -1.2 -1.8e19

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 19-Jan-2020 20:30 UT .