13 May 2020
⇐20200512 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200514⇒

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 E15S05
(-246",-43") 		E42-W23
(65) 		8.0 -0.0 -1.8e19
2 E20S57
(-177",-771") 		E51-W44
(95) 		5.2 -0.7 -3.3e21
3 W22N69
(126",900") 		E02-W32
(34) 		0.4 0.7 9.6e20
4 W24S37
(307",-537") 		W16-W29
(13) 		0.3 -0.5 -6.4e19
5 W35N50
(348",756") 		W26-W47
(21) 		0.3 0.4 1.5e20
6 W26S54
(246",-743") 		W20-W32
(12) 		0.1 -1.1 -6.2e19

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 13-May-2020 19:30 UT .