8 October 2020
⇐20201007 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20201009⇒

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Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W25N03
(411",-40") 		E02-W45
(47) 		5.2 -0.1 -1.0e20
2 E19N68
(-115",849") 		E63-W26
(89) 		2.8 0.9 8.9e20
3 E25S08
(-401",-221") 		E40-E08
(32) 		2.1 -0.0 -1.0e19
4 E29N26
(-423",330") 		E51-E00
(51) 		2.0 0.1 2.4e19
5 E07S61
(-60",-884") 		E61-W58
(119) 		2.0 -0.5 -4.3e20
6 W12S16
(193",-364") 		W07-W17
(10) 		0.3 -1.5 -7.5e19
7 W43S13
(637",-285") 		W39-W46
(7) 		0.1 -1.1 -1.4e19
8 E33S03
(-520",-142") 		E34-E30
(4) 		0.0 -0.7 -5.8e18
9 E16N03
(-265",-58") 		E17-E15
(2) 		0.0 -1.6 -9.6e18

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 8-Oct-2020 23:30 UT .