2 March 2021
⇐20210301 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20210303⇒

NOAA
1 Active Region
12803

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 E14N01
(-242",128") 		E43-W32
(75) 		16.1 0.3 8.5e20
2 W56S29
(705",-403") 		W51-W66
(15) 		0.3 -2.6 -2.3e20
3 W57S74
(225",-904") 		W43-W76
(33) 		0.2 -1.4 -2.0e20
4 W30S80
(82",-929") 		E77-W36
(113) 		0.2 -1.5 -1.6e20
5 W47S58
(377",-767") 		W45-W52
(7) 		0.1 -1.3 -5.3e19

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 2-Mar-2021 20:30 UT .