20 June 2015
⇐20150619 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20150621⇒

NOAA
4 Active Regions
12367
12371
12369
12370

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E13S11
(-211",-207") 		E28-W06
(34) 		3.5 5.2 4.1e33
2 E51N35
(-609",522") 		E75-E39
(36) 		1.5 1.7 2.6e33
3 E29S71
(-146",-901") 		E67-W35
(102) 		0.6 -0.6 -1.8e33
4 E23N64
(-165",836") 		E35-E09
(26) 		0.3 0.3 1.5e32
5 E04N15
(-58",216") 		E05-W01
(6) 		0.1 9.1 1.3e32

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 20-Jun-2015 00:35 UT .