29 November 2022
⇐20221128 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20221130⇒

NOAA
4 Active Regions
13147
13149
13151
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 W17N01
(285",-6") 		E03-W30
(33) 		5.2 2.9 2.4e21
2 W42N31
(562",489") 		W34-W60
(26) 		1.7 3.6 1.5e21
3 W48S53
(436",-786") 		W31-W72
(41) 		1.0 -0.8 -3.3e20
4 W39S69
(217",-913") 		W25-W62
(37) 		0.2 -0.5 -6.5e19
5 E10S09
(-169",-178") 		E13-E07
(6) 		0.2 -1.9 -4.8e19
6 E08S05
(-138",-105") 		E10-E06
(4) 		0.0 -1.7 -9.1e18

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 29-Nov-2022 20:30 UT .