28 February 2018
⇐20180227 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180301⇒

NOAA
1 Active Region
12700

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 E08N46
(-96",774") 		E47-W47
(94) 		8.1 0.5 3.3e33
2 E06S70
(-32",-862") 		E82-W69
(151) 		3.9 -1.3 -7.2e33
3 E19S26
(-283",-327") 		E32-W05
(37) 		2.5 -0.2 -1.2e32
4 W26S18
(410",-187") 		W24-W29
(5) 		0.1 -0.7 -1.9e31

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 28-Feb-2018 20:35 UT .