8 January 2020
⇐20200107 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200109⇒

NOAA
1 Active Region
12755

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 W06S01
(96",42") 		E39-W42
(81) 		8.8 -0.0 -5.6e19
2 E01S67
(-5",-870") 		E72-W79
(151) 		3.8 -1.1 -5.7e21
3 E22N07
(-360",177") 		E30-E16
(14) 		1.1 0.9 2.6e20
4 E39N53
(-376",804") 		E51-E37
(14) 		0.8 1.0 1.3e21
5 W42S27
(588",-402") 		W30-W55
(25) 		0.7 -0.5 -2.0e20
6 W27N69
(160",930") 		W03-W47
(44) 		0.4 1.3 2.4e21
7 E45N22
(-643",415") 		E53-E39
(14) 		0.4 2.2 5.8e20
8 W37S12
(577",-148") 		W33-W41
(8) 		0.3 -1.0 -9.7e19
9 W43N13
(649",267") 		W39-W47
(8) 		0.1 -1.1 -7.2e19
10 E13N26
(-203",482") 		E16-E11
(5) 		0.1 -0.9 -1.5e19

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 8-Jan-2020 20:30 UT .