17 June 2017
⇐20170616 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20170618⇒

NOAA
2 Active Regions
12662
12663

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 -664
(-519",588") 		1.6e05
(1.7) 		8.7 -5.2 -8.0e33
2 178
(405",-445") 		5.4e04
(1.3) 		5.4 -8.4 -4.5e33
3 677
(754",-130") 		5.1e04
(0.6) 		6.0 -8.3 -4.2e33
4 429
(539",388") 		2.5e04
(0.5) 		5.4 -9.8 -2.5e33
5 63
(166",-891") 		1.3e05
(0.3) 		4.8 -7.2 -9.3e33
6 -13
(16",-157") 		1.2e03
(0.1) 		3.5 -11.0 -1.3e32
7 -788
(-759",358") 		6.8e03
(0.0) 		5.0 -5.0 -3.4e32

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 17-Jun-2017 23:30 UT .