17 March 2019
⇐20190316 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190318⇒

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 W04S63
(33",-795") 		E84-W77
(161) 		4.5 -0.6 -2.4e21
2 W25N57
(223",865") 		E22-W45
(67) 		2.0 0.8 3.3e21
3 W38S02
(595",60") 		W31-W46
(15) 		1.1 0.9 3.7e20
4 W06S38
(76",-495") 		E02-W10
(12) 		0.2 -1.6 -1.2e20
5 E02S09
(-27",-27") 		5
(8.8e02) 		-1.1 4.3 3.8e19
6 W05N22
(79",474") 		W04-W07
(3) 		0.0 -1.2 -1.4e19

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 17-Mar-2019 20:30 UT .