9 March 2017
⇐20170308 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170310⇒

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 W14S70
(82",-861") 		E78-W85
(163) 		3.8 -1.4 -7.8e33
2 W21S19
(320",-213") 		W03-W35
(32) 		2.9 -0.4 -2.7e32
3 E32N47
(-355",769") 		38
(3.2e05) 		0.7 7.1 2.3e34
4 W22N25
(327",509") 		W13-W31
(18) 		1.0 0.8 3.5e32
5 W11N38
(148",690") 		W04-W17
(13) 		0.3 -0.4 -8.3e31
6 W05S29
(71",-364") 		W01-W08
(7) 		0.2 -1.2 -7.3e31
7 E50S20
(-699",-249") 		E52-E46
(6) 		0.1 -1.2 -4.2e31

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 9-Mar-2017 20:30 UT .