11 May 2017
⇐20170510 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170512⇒

NOAA
1 Active Region
12655

Flare Forecast
Flare Prediction System
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 -503
(-328",-322") 		9.3e04
(3.1) 		7.4 -5.8 -5.4e33
2 -90
(202",886") 		3.7e05
(1.0) 		5.5 -5.7 -2.1e34
3 -469
(-360",799") 		1.8e05
(0.9) 		6.3 -5.8 -1.0e34
4 -609
(-541",392") 		2.7e04
(0.5) 		8.6 -5.6 -1.5e33
5 -309
(-234",208") 		1.1e04
(0.5) 		15.0 -7.5 -8.5e32
6 102
(246",-891") 		1.9e05
(0.3) 		5.1 -7.5 -1.4e34
7 -241
(-137",-909") 		1.2e05
(0.2) 		5.7 -6.9 -8.1e33
8 -26
(44",-918") 		6.3e04
(0.1) 		5.4 -8.6 -5.4e33

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 11-May-2017 23:30 UT .