19 June 2021
⇐20210618 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20210620⇒

NOAA
2 Active Regions
12833
12834

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 E13N66
(-90",850") 		E54-W73
(127) 		2.4 0.8 7.0e20
2 W02S08
(26",-163") 		E12-W17
(29) 		2.0 0.1 1.7e19
3 E07S24
(-99",-416") 		E11-W02
(13) 		0.4 2.0 1.4e20
4 W06N35
(84",525") 		W01-W11
(10) 		0.3 3.8 2.2e20
5 E01N44
(-13",632") 		E04-W02
(6) 		0.1 -0.5 -7.0e18
6 W19S13
(302",-230") 		W18-W21
(3) 		0.0 -1.0 -6.1e18

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 19-Jun-2021 23:30 UT .