24 January 2019
⇐20190123 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190125⇒

NOAA
1 Active Region
12733

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 E11S72
(-55",-897") 		E83-W80
(163) 		2.2 -1.2 -4.9e21
2 W48N20
(684",391") 		W26-W66
(40) 		2.1 0.7 1.1e21
3 E04N62
(-34",902") 		E58-W31
(89) 		1.7 0.8 3.0e21
4 E45S15
(-666",-191") 		E53-E36
(17) 		0.8 -0.4 -1.9e20
5 E32S48
(-345",-676") 		E38-E25
(13) 		0.2 -0.6 -6.4e19
6 E48S32
(-618",-462") 		E55-E43
(12) 		0.2 -0.7 -8.3e19
7 W12S39
(158",-542") 		W06-W17
(11) 		0.1 -0.9 -3.4e19

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 24-Jan-2019 20:30 UT .