15 June 2019
⇐20190614 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190616⇒

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Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W08S14
(122",-242") 		E42-W47
(89) 		14.1 -0.4 -1.1e21
2 E02S57
(-17",-805") 		E38-W33
(71) 		4.9 -0.7 -3.6e21
3 W17N65
(118",850") 		E74-W68
(142) 		2.5 0.7 3.1e21
4 E19S36
(-248",-569") 		E24-E12
(12) 		0.1 -0.7 -4.5e19
5 W14N13
(229",199") 		W12-W16
(4) 		0.1 -1.1 -2.9e19
6 W13N21
(197",322") 		W12-W15
(3) 		0.1 -0.8 -1.7e19
7 W29N27
(404",420") 		W26-W31
(5) 		0.1 -0.6 -1.6e19
8 E01S23
(-11",-381") 		E02-W02
(4) 		0.0 1.2 1.3e19

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 15-Jun-2019 22:50 UT .