5 February 2020
⇐20200204 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200206⇒

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 W18S11
(289",-86") 		E17-W43
(60) 		7.5 0.0 6.2e19
2 W17S60
(145",-785") 		E84-W40
(124) 		7.0 -1.1 -6.6e21
3 E37N21
(-546",433") 		E47-E28
(19) 		1.9 0.7 7.0e20
4 E04N67
(-29",930") 		E18-W16
(34) 		0.3 0.7 7.9e20
5 W29N08
(469",231") 		W26-W31
(5) 		0.1 -1.2 -4.1e19

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 5-Feb-2020 20:30 UT .