29 July 2019
⇐20190728 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20190730⇒

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 E26N69
(-146",851") 		E83-W45
(128) 		3.1 1.3 1.5e21
2 W16S10
(250",-253") 		E00-W24
(24) 		2.6 -1.7 -7.1e20
3 E47N22
(-642",287") 		E60-E32
(28) 		1.8 1.2 4.9e20
4 E42S14
(-609",-298") 		E50-E32
(18) 		1.5 0.7 2.4e20
5 W12S64
(88",-883") 		E32-W32
(64) 		0.8 -0.7 -2.6e20
6 W42S12
(616",-259") 		W39-W44
(5) 		0.0 2.1 2.0e19

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 29-Jul-2019 23:30 UT .