13 March 2020
⇐20200312 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200314⇒

NOAA
1 Active Region
12758

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 W10S11
(169",-73") 		E22-W35
(57) 		9.7 -0.2 -4.5e20
2 E20S67
(-130",-837") 		E72-W88
(160) 		5.0 -1.0 -6.5e21
3 E26N13
(-418",319") 		E41-W02
(43) 		3.6 -0.1 -7.8e19
4 W33N40
(406",694") 		W21-W44
(23) 		0.7 0.8 5.0e20
5 E11N66
(-73",925") 		E33-W19
(52) 		0.4 0.8 1.1e21
6 E52S07
(-757",-43") 		E54-E50
(4) 		0.1 -0.9 -4.3e19

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 13-Mar-2020 20:30 UT .