28 June 2020
⇐20200627 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200629⇒

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Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E18N15
(-288",198") 		E39-W21
(60) 		9.8 -0.0 -2.0e19
2 W35N09
(541",105") 		W17-W48
(31) 		2.5 -0.2 -9.2e19
3 E33N68
(-191",863") 		E63-W72
(135) 		1.9 0.9 7.2e20
4 W06S27
(91",-475") 		E12-W16
(28) 		1.4 -0.2 -4.8e19
5 W42S63
(285",-856") 		E13-W58
(71) 		1.3 -0.9 -6.2e20
6 E50N39
(-568",568") 		E61-E45
(16) 		0.5 0.9 1.3e20
7 E42S65
(-264",-871") 		E60-E27
(33) 		0.4 -0.7 -1.6e20

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 28-Jun-2020 19:00 UT .