15 February 2020
⇐20200214 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200216⇒

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 W22S14
(352",-121") 		E18-W50
(68) 		8.0 -0.3 -5.1e20
2 E10S61
(-85",-793") 		E40-W74
(114) 		6.2 -1.0 -5.1e21
3 E27S08
(-435",-34") 		E47-E08
(39) 		5.0 -0.1 -9.0e19
4 E33N21
(-496",430") 		E41-E26
(15) 		0.4 0.5 8.8e19
5 E26N67
(-165",928") 		E48-E12
(36) 		0.1 0.9 5.5e20
6 W26N37
(346",660") 		W24-W27
(3) 		0.0 -1.0 -2.8e19

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-2020 20:30 UT .