3 May 2017
⇐20170502 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170504⇒

NOAA
2 Active Regions
12653
12654

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 E03S65
(-24",-833") 		E77-W52
(129) 		4.9 -1.2 -6.9e33
2 W14S27
(199",-373") 		E10-W24
(34) 		4.1 -0.1 -9.9e31
3 E17N61
(-132",862") 		E66-W34
(100) 		2.4 0.8 3.3e33
4 W46S19
(651",-270") 		W44-W48
(4) 		0.0 -1.2 -3.2e31

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 3-May-2017 23:30 UT .