28 February 2020
⇐20200227 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20200229⇒

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 W04S20
(66",-223") 		E38-W43
(81) 		11.2 -0.2 -4.7e20
2 E17S64
(-123",-817") 		E70-W66
(136) 		6.1 -0.8 -5.1e21
3 W16N19
(252",417") 		W02-W26
(24) 		1.9 -0.0 -1.1e18
4 E05N58
(-49",877") 		E09-E00
(9) 		0.1 -0.6 -7.4e19
5 E04N11
(-74",297") 		E06-E03
(3) 		0.1 -2.2 -2.4e19

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-Feb-2020 20:30 UT .