2 January 2018
⇐20180101 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180103⇒

NOAA
0 Active Regions

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 W22S70
(129",-897") 		E53-W62
(115) 		2.2 -1.4 -6.7e33
2 E01N64
(-10",898") 		E63-W52
(115) 		2.2 0.8 3.5e33
3 E42N35
(-539",591") 		E64-E37
(27) 		1.6 1.2 1.6e33
4 W49N35
(603",583") 		W42-W60
(18) 		0.4 1.5 6.9e32

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 2-Jan-2018 20:30 UT .