3 October 2018
⇐20181002 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20181004⇒

NOAA
1 Active Region
12723

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 E26N19
(-400",217") 		E52-E05
(47) 		8.2 1.4 3.3e21
2 W36N73
(166",886") 		E75-W79
(154) 		1.8 1.3 6.0e21
3 W34S06
(540",-186") 		W28-W41
(13) 		1.1 -1.2 -4.7e20
4 E57N59
(-420",783") 		E62-E50
(12) 		0.1 2.0 4.0e20
5 E20S70
(-114",-931") 		E26-E13
(13) 		0.1 -1.0 -5.4e20

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 3-Oct-2018 23:10 UT .