24 February 2020
⇐20200223 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200225⇒

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 E15S57
(-135",-748") 		E70-W83
(153) 		8.0 -0.6 -3.4e21
2 W06N13
(93",335") 		E10-W15
(25) 		2.1 -0.1 -4.4e19
3 W24S15
(376",-144") 		W09-W37
(28) 		1.7 -0.3 -1.3e20
4 E15N07
(-252",235") 		E24-E06
(18) 		1.5 0.2 6.1e19
5 W35S28
(493",-360") 		W33-W37
(4) 		0.1 -1.0 -3.8e19
6 W23S05
(373",25") 		W21-W25
(4) 		0.1 2.1 3.6e19
7 E20S13
(-321",-113") 		E23-E17
(6) 		0.1 -1.0 -1.4e19

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 24-Feb-2020 20:30 UT .