27 January 2018
⇐20180126 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20180128⇒

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 W13S65
(96",-836") 		E77-W50
(127) 		5.1 -1.1 -6.0e33
2 W25S20
(387",-255") 		W09-W37
(28) 		3.5 -0.3 -3.2e32
3 W16N55
(157",848") 		E43-W37
(80) 		3.1 0.6 2.5e33
4 W06S18
(99",-208") 		E02-W12
(14) 		1.6 0.0 1.7e30

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 27-Jan-2018 20:30 UT .