28 June 2019
⇐20190627 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190629⇒

NOAA
1 Active Region
12743

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 W14N14
(223",196") 		E06-W27
(33) 		3.6 -0.1 -6.3e19
2 W14N67
(92",850") 		E63-W52
(115) 		2.9 1.0 1.0e21
3 W14S25
(201",-432") 		E08-W25
(33) 		2.6 -0.3 -1.6e20
4 W28S61
(209",-847") 		E34-W59
(93) 		1.8 -0.2 -1.5e20
5 W24S10
(384",-202") 		W09-W36
(27) 		1.7 -0.2 -7.1e19
6 E45S05
(-660",-118") 		E53-E35
(18) 		0.7 -1.8 -2.6e20
7 W36N34
(459",493") 		W29-W43
(14) 		0.2 -0.5 -2.5e19
8 W25N18
(379",261") 		W22-W29
(7) 		0.1 -0.8 -1.5e19
9 E24N43
(-285",611") 		E26-E22
(4) 		0.1 -1.1 -1.5e19
10 W27S35
(355",-568") 		W24-W30
(6) 		0.0 -0.8 -7.4e18

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 28-Jun-2019 22:55 UT .