10 January 2020
⇐20200109 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200111⇒

NOAA
2 Active Regions
12756
12755

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 E13N44
(-157",723") 		E23-W09
(32) 		5.6 0.7 2.5e21
2 W10S19
(156",-250") 		E18-W23
(41) 		5.4 0.2 2.6e20
3 W05S64
(40",-847") 		E68-W80
(148) 		4.3 -0.8 -4.2e21
4 E10S41
(-126",-589") 		E14-E03
(11) 		0.3 -0.6 -6.3e19
5 W21N18
(327",357") 		W19-W22
(3) 		0.1 -0.9 -1.9e19

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 10-Jan-2020 20:30 UT .