6 February 2019
⇐20190205 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190207⇒

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 W06S48
(66",-650") 		E57-W41
(98) 		12.8 -0.5 -3.0e21
2 W22N09
(366",247") 		W05-W33
(28) 		1.7 -0.1 -7.0e19
3 E27N56
(-249",856") 		E39-E05
(34) 		1.4 0.6 1.7e21
4 W32S38
(401",-529") 		W29-W34
(5) 		0.1 -1.7 -5.1e19
5 W49N09
(732",219") 		W48-W51
(3) 		0.0 -2.2 -5.5e19

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 6-Feb-2019 20:30 UT .