5 October 2018
⇐20181004 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20181006⇒

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 E04N43
(-53",578") 		E39-W27
(66) 		13.9 1.1 6.0e21
2 E19S17
(-292",-375") 		E29-E00
(29) 		2.3 -0.1 -5.7e19
3 E64N07
(-861",63") 		E72-E58
(14) 		0.2 -0.6 -1.4e20
4 E32S26
(-464",-496") 		E35-E29
(6) 		0.1 -1.6 -4.3e19
5 E38S33
(-498",-589") 		E40-E36
(4) 		0.0 2.0 5.3e19

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 5-Oct-2018 23:10 UT .