13 June 2019
⇐20190612 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190614⇒

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Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E18S40
(-220",-624") 		E45-W22
(67) 		13.6 -0.5 -3.1e21
2 W21N64
(145",844") 		E66-W57
(123) 		3.4 0.9 4.8e21
3 E34S23
(-491",-387") 		E45-E23
(22) 		1.0 0.5 2.3e20
4 E54S42
(-571",-636") 		E63-E48
(15) 		0.4 -0.5 -2.8e20
5 E32N34
(-411",525") 		E36-E28
(8) 		0.1 -0.9 -6.1e19
6 W07N44
(80",646") 		W02-W11
(9) 		0.1 -0.5 -2.1e19
7 E18N18
(-279",273") 		E19-E16
(3) 		0.0 0.9 9.7e18

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-Jun-2019 22:50 UT .