8 March 2017
⇐20170307 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170309⇒

NOAA
2 Active Regions
12641
12642

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 W09S70
(52",-859") 		E53-W69
(122) 		4.1 -1.3 -7.4e33
2 W06S23
(99",-271") 		E12-W20
(32) 		3.0 -0.1 -5.6e31
3 W12N26
(177",525") 		E03-W21
(24) 		1.7 0.4 2.1e32
4 E45N34
(-574",603") 		E51-E38
(13) 		0.7 0.4 2.9e32
5 W79S59
(491",-808") 		W81-W78
(-3) 		0.1 -0.9 -3.3e32
6 W20N02
(334",144") 		W18-W22
(4) 		0.0 -0.9 -8.3e30

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-Mar-2017 20:30 UT .