8 March 2020
⇐20200307 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200309⇒

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Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W12S61
(97",-784") 		E65-W85
(150) 		6.8 -0.9 -4.9e21
2 W14S09
(234",-30") 		E11-W30
(41) 		3.3 -0.6 -3.8e20
3 E29N19
(-447",418") 		E37-E14
(23) 		2.5 -0.2 -2.3e20
4 E24S14
(-389",-125") 		E40-W01
(41) 		2.3 -0.1 -3.5e19
5 W05N27
(78",549") 		E11-W15
(26) 		1.4 0.2 9.9e19
6 E19N63
(-144",908") 		E47-E05
(42) 		0.3 0.7 6.5e20
7 W04N16
(63",375") 		E05-W07
(12) 		0.2 -0.9 -4.3e19
8 E50S10
(-730",-83") 		E54-E46
(8) 		0.1 -0.4 -3.1e19
9 E76S62
(-442",-831") 		E80-E73
(7) 		0.0 -1.1 -3.2e20

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-Mar-2020 20:30 UT .