13 October 2020
⇐20201012 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20201014⇒

NOAA
2 Active Regions
12775
12774

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 E04N70
(-24",867") 		E86-W49
(135) 		3.0 1.2 1.2e21
2 E02N18
(-29",198") 		E10-W09
(19) 		2.0 -0.4 -1.3e20
3 E22N03
(-364",-34") 		E34-E09
(25) 		1.8 0.2 6.3e19
4 W22N03
(357",-39") 		W08-W35
(27) 		1.7 -0.3 -9.2e19
5 E25S62
(-195",-885") 		E41-E05
(36) 		0.5 -0.7 -1.4e20
6 W24S67
(154",-915") 		E09-W53
(62) 		0.4 -0.8 -2.1e20
7 W04S07
(66",-213") 		E01-W06
(7) 		0.2 -1.1 -3.1e19
8 W23N34
(318",454") 		W20-W27
(7) 		0.2 -0.8 -2.3e19
9 W35N37
(445",505") 		W30-W40
(10) 		0.1 -0.9 -2.3e19
10 E11N14
(-172",139") 		E13-E08
(5) 		0.1 -1.1 -2.1e19
11 W43N07
(653",44") 		W41-W46
(5) 		0.1 -1.0 -1.6e19

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 13-Oct-2020 23:30 UT .