26 February 2018
⇐20180225 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180227⇒

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 W07S68
(43",-847") 		E81-W55
(136) 		4.5 -1.2 -6.6e33
2 E30N38
(-379",676") 		E59-W02
(61) 		3.1 0.8 1.8e33
3 W25N58
(217",874") 		E21-W37
(58) 		1.6 0.6 2.1e33
4 E31S12
(-487",-99") 		E37-E26
(11) 		0.3 -1.1 -1.1e32
5 W56S17
(771",-217") 		W52-W61
(9) 		0.1 -0.9 -9.1e31

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 26-Feb-2018 20:30 UT .