15 March 2018
⇐20180314 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180316⇒

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Flare Prediction System
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Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W33N17
(509",379") 		E03-W71
(74) 		7.8 -1.0 -3.6e33
2 E21S03
(-346",66") 		E34-E03
(31) 		2.1 0.1 2.9e31
3 W39S79
(118",-921") 		E12-W67
(79) 		0.4 -1.6 -2.8e33
4 E71S58
(-477",-795") 		E77-E63
(14) 		0.1 -0.6 -3.4e32
5 E77S65
(-392",-859") 		E87-E62
(25) 		0.1 -1.0 -6.0e32
6 E51S42
(-556",-586") 		E55-E48
(7) 		0.1 -0.7 -3.8e31
7 E05S22
(-85",-255") 		E07-E03
(4) 		0.1 -1.4 -1.6e31

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-Mar-2018 20:34 UT .