15 July 2020
⇐20200714 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200716⇒

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Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W08N67
(54",837") 		E53-W77
(130) 		3.9 0.9 1.1e21
2 W03S18
(42",-368") 		E15-W15
(30) 		3.3 0.3 1.5e20
3 W13S65
(90",-883") 		E59-W52
(111) 		1.5 -0.7 -4.9e20
4 E17S38
(-217",-633") 		E22-E11
(11) 		0.5 -0.9 -9.2e19
5 W18N32
(251",443") 		W15-W22
(7) 		0.3 -0.6 -3.1e19
6 E41S17
(-598",-322") 		E46-E37
(9) 		0.1 -0.7 -1.6e19
7 W12N22
(177",283") 		W10-W13
(3) 		0.1 -1.3 -1.5e19
8 E07N03
(-111",-19") 		E08-E05
(3) 		0.0 -1.4 -9.4e18

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-Jul-2020 19:00 UT .