23 June 2018
⇐20180622 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180624⇒

NOAA
2 Active Regions
12713
12715

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 E08S22
(-121",-379") 		E41-W29
(70) 		11.3 -0.4 -1.1e21
2 E20S61
(-157",-842") 		E41-W63
(104) 		3.2 -0.8 -4.1e21
3 W47N61
(328",817") 		E02-W52
(54) 		2.1 0.6 2.8e21
4 W52N35
(609",520") 		W40-W64
(24) 		0.8 0.5 3.7e20
5 W25S34
(328",-551") 		W18-W33
(15) 		0.4 -0.6 -1.1e20
6 E47S18
(-654",-319") 		E53-E41
(12) 		0.2 -1.3 -1.7e20

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 23-Jun-2018 23:10 UT .