15 February 2019
⇐20190214 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190216⇒

NOAA
0 Active Regions

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 E02S22
(-38",-257") 		E21-W26
(47) 		6.9 0.5 7.1e20
2 W18S68
(109",-856") 		E78-W70
(148) 		3.7 -1.3 -6.4e21
3 E09N57
(-78",876") 		E57-W49
(106) 		2.2 0.7 2.4e21
4 W53S43
(568",-612") 		W37-W72
(35) 		0.9 -0.7 -7.1e20
5 W15S18
(244",-192") 		W13-W19
(6) 		0.1 -1.4 -2.7e19

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-Feb-2019 20:30 UT .