19 October 2019
⇐20191018 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20191020⇒

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 E32N20
(-476",250") 		E50-E02
(48) 		7.5 0.8 1.1e21
2 W35S26
(498",-485") 		W18-W43
(25) 		2.3 -0.8 -4.3e20
3 W41N71
(206",883") 		E49-W85
(134) 		1.8 1.3 1.1e21
4 E49N67
(-288",857") 		E74-E40
(34) 		0.6 0.8 2.2e20
5 -162
(-921",E00S67") 		63
(2.7e04) 		-0.7 3.2 8.5e20
6 E30S13
(-477",-294") 		E36-E23
(13) 		0.4 0.7 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 19-Oct-2019 23:40 UT .