28 July 2018
⇐20180727 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180729⇒

NOAA
1 Active Region
12716

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 E18S11
(-288",-257") 		E42-W09
(51) 		6.4 -0.1 -1.2e32
2 W08N64
(54",810") 		E81-W40
(121) 		4.8 1.1 5.5e33
3 W35S58
(289",-836") 		W03-W43
(40) 		1.0 -0.6 -1.4e33
4 W43S02
(648",-105") 		W36-W53
(17) 		0.9 -0.7 -2.8e32
5 W48S23
(643",-430") 		W41-W58
(17) 		0.6 -0.4 -2.3e32
6 E51S04
(-738",-123") 		E55-E48
(7) 		0.2 -1.1 -1.3e32
7 E52S21
(-692",-397") 		E57-E48
(9) 		0.2 -1.3 -2.0e32
8 W52S44
(535",-693") 		W54-W55
(1) 		0.1 -0.6 -1.7e32
9 W62S17
(796",-323") 		W57-W65
(8) 		0.1 -1.7 -1.8e32

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-Jul-2018 16:12 UT .