26 March 2019
⇐20190325 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190327⇒

NOAA
1 Active Region
12735

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 W03S60
(25",-767") 		E69-W46
(115) 		7.1 -0.8 -4.5e21
2 W13S14
(205",-129") 		E28-W31
(59) 		5.5 -0.3 -3.7e20
3 E21N10
(-336",265") 		E33-E05
(28) 		2.6 -0.4 -2.8e20
4 W29N59
(237",872") 		E06-W48
(54) 		1.1 0.9 2.6e21
5 E55S42
(-583",-597") 		E68-E49
(19) 		0.5 -0.5 -2.6e20
6 W53S22
(714",-302") 		W52-W55
(3) 		0.3 -1.1 -2.7e20
7 E23N24
(-349",490") 		E26-E21
(5) 		0.1 -1.2 -3.0e19
8 E47N02
(-708",119") 		E50-E44
(6) 		0.0 -0.4 -1.1e19

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 26-Mar-2019 20:30 UT .