25 February 2019
⇐20190224 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190226⇒

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 E03S45
(-39",-595") 		E48-W41
(89) 		17.2 -0.7 -4.6e21
2 E32N05
(-510",186") 		E47-E09
(38) 		1.5 -0.4 -1.8e20
3 W23N63
(172",908") 		E06-W39
(45) 		0.9 0.6 1.8e21
4 E23S30
(-325",-384") 		E25-E20
(5) 		0.1 -0.6 -1.1e19
5 E55S40
(-609",-559") 		E57-E51
(6) 		0.0 -1.6 -7.8e19
6 W31S34
(421",-449") 		W30-W34
(4) 		0.0 -0.5 -9.7e18

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 25-Feb-2019 20:30 UT .