12 March 2018
⇐20180311 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180313⇒

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 E02N14
(-40",346") 		E36-W35
(71) 		6.1 -1.7 -2.5e33
2 E28S74
(-126",-889") 		E54-W87
(141) 		1.5 -1.4 -4.8e33
3 W31N63
(224",902") 		W07-W52
(45) 		0.6 0.7 1.7e33
4 W65S75
(228",-912") 		W64-W89
(25) 		0.2 -0.7 -6.8e32
5 E11N38
(-145",686") 		E14-E07
(7) 		0.1 -0.8 -2.6e31

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 12-Mar-2018 20:30 UT .