15 October 2018
⇐20181014 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20181016⇒

NOAA
2 Active Regions
12724
12725

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 E31N57
(-270",761") 		E70-E12
(58) 		2.8 1.0 2.7e21
2 W51S11
(739",-240") 		W37-W69
(32) 		1.2 -0.7 -6.8e20
3 W45S31
(589",-549") 		W41-W56
(15) 		0.6 -0.6 -3.4e20
4 W37N77
(129",916") 		E34-W61
(95) 		0.4 1.2 2.0e21
5 E20S68
(-123",-922") 		E46-W02
(48) 		0.3 -1.2 -2.0e21
6 W12S38
(154",-666") 		W07-W14
(7) 		0.3 -0.5 -6.8e19
7 W36S64
(249",-894") 		W24-W55
(31) 		0.2 -1.3 -1.3e21
8 W18S72
(94",-938") 		W10-W32
(22) 		0.1 -1.6 -8.7e20
9 E40S56
(-342",-839") 		E45-E33
(12) 		0.1 -0.8 -1.6e20

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 15-Oct-2018 23:10 UT .