18 August 2016
⇐20160817 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20160819⇒



Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 W05N72
(25",859") 		E90-W69
(159) 		2.3 0.8 3.0e33
2 E22S09
(-356",-251") 		E34-E06
(28) 		1.9 -0.2 -9.4e31
3 W23N29
(327",375") 		W09-W36
(27) 		1.8 -2.1 -1.2e33
4 E49S14
(-693",-303") 		E68-E37
(31) 		1.7 -0.4 -5.6e32
5 W15S63
(111",-888") 		E54-W55
(109) 		1.5 -0.7 -2.7e33
6 E04S09
(-67",-258") 		E09-W04
(13) 		0.7 0.9 1.3e32
7 E18S30
(-255",-571") 		E27-E11
(16) 		0.4 1.0 1.8e32
8 W35S34
(454",-604") 		W27-W49
(22) 		0.4 0.4 1.2e32
9 E41S32
(-528",-571") 		E42-E40
(2) 		0.1 2.2 1.4e32
10 E57S24
(-722",-444") 		E60-E51
(9) 		0.0 -1.3 -8.6e31
11 W35N10
(530",78") 		W33-W36
(3) 		0.0 -1.6 -2.6e31

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 18-Aug-2016 23:31 UT .