10 December 2018
⇐20181209 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20181211⇒

NOAA
1 Active Region
12729

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 E16S61
(-128",-850") 		119
(5.2e05) 		-0.8 4.9 2.6e22
2 E24N64
(-178",876") 		123
(4.9e05) 		0.9 6.6 3.2e22
3 E41S08
(-639",-124") 		E55-E23
(32) 		1.8 -0.1 -4.7e19
4 E26S23
(-399",-375") 		E39-E11
(28) 		1.6 -0.2 -1.0e20
5 W47S44
(508",-677") 		W38-W51
(13) 		0.5 -0.6 -3.5e20
6 W27S23
(409",-381") 		W23-W31
(8) 		0.2 0.6 4.2e19
7 E16N35
(-214",563") 		E18-E13
(5) 		0.1 -0.7 -1.9e19
8 W17S32
(246",-514") 		W16-W19
(3) 		0.0 -1.8 -3.1e19
9 E08N38
(-110",611") 		E10-E05
(5) 		0.0 -1.4 -2.6e19

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 10-Dec-2018 20:30 UT .