26 January 2020
⇐20200125 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200127⇒

NOAA
1 Active Region
12757

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 E16S52
(-160",-715") 		E43-W71
(114) 		10.6 -0.4 -2.8e21
2 W14S19
(228",-231") 		W01-W22
(21) 		2.3 -0.2 -1.1e20
3 W09N24
(133",488") 		W06-W11
(5) 		0.1 -1.2 -3.1e19
4 E46S10
(-690",-111") 		E48-E42
(6) 		0.1 -0.7 -2.4e19
5 W21N71
(114",947") 		W13-W36
(23) 		0.1 1.5 7.0e20
6 W23S20
(354",-250") 		W21-W24
(3) 		0.1 -1.6 -2.5e19

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-Jan-2020 20:30 UT .