9 January 2022
⇐20220108 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20220110⇒

NOAA
3 Active Regions
12924
12925
12922

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 W37S12
(578",-142") 		W13-W60
(47) 		4.2 -0.6 -4.9e20
2 W06S01
(104",52") 		E13-W21
(34) 		3.8 0.4 2.4e20
3 E02N60
(-18",876") 		E44-W64
(108) 		2.7 0.5 4.5e20
4 E47S66
(-292",-869") 		E77-E26
(51) 		1.3 -0.9 -4.9e20
5 W54S34
(655",-505") 		W43-W68
(25) 		0.9 -1.6 -4.1e20
6 E59S15
(-814",-212") 		E65-E53
(12) 		0.4 -2.3 -3.0e20
7 E57S25
(-745",-378") 		E60-E52
(8) 		0.2 -2.6 -1.4e20
8 W56S62
(385",-840") 		W57-W67
(10) 		0.1 -1.1 -4.6e19
9 W12S19
(199",-249") 		W11-W14
(3) 		0.1 -3.2 -2.7e19
10 E45S02
(-695",15") 		3
(9.0e02) 		-1.1 3.6 3.3e19

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 9-Jan-2022 20:30 UT .