1 December 2022
⇐20221130 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20221202⇒

NOAA
1 Active Region
13152

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 E41N13
(-621",213") 		E54-E29
(25) 		4.2 -1.8 -1.6e21
2 W39S08
(614",-147") 		W14-W55
(41) 		4.2 2.1 1.7e21
3 E46S21
(-660",-351") 		E50-E42
(8) 		0.1 -4.8 -1.2e20
4 W61N19
(804",314") 		W57-W63
(6) 		0.1 2.3 4.4e19

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 1-Dec-2022 20:30 UT .