24 May 2018
⇐20180523 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180525⇒

NOAA
2 Active Regions
12710
12711

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 E05N51
(-50",751") 		E69-W67
(136) 		6.4 0.5 2.6e21
2 E04S64
(-29",-840") 		E52-W70
(122) 		3.7 -1.0 -5.0e21
3 E68S07
(-876",-100") 		E82-E58
(24) 		0.4 -1.5 -1.2e21
4 E08S22
(-124",-338") 		E10-E06
(4) 		0.0 -0.8 -7.8e18

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 24-May-2018 17:05 UT .