14 May 2019
⇐20190513 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190515⇒

NOAA
2 Active Regions
12740
12741

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 W16N58
(135",829") 		E48-W36
(84) 		3.5 0.8 3.7e21
2 E34S67
(-204",-861") 		E65-W49
(114) 		2.1 -1.1 -5.1e21
3 E24S36
(-309",-522") 		E34-E16
(18) 		0.7 -0.5 -1.5e20
4 E49S22
(-669",-327") 		E52-E46
(6) 		0.1 -1.2 -5.1e19

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 14-May-2019 22:00 UT .