12 January 2017
20170111 Week Rotation Today Rotation Week 20170113

NOAA
0 Active Regions

Flare Forecast

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
8 E10N28
(-156",528")
E19-W08
(27)
2.6 1.1 9.9e32
10 E36N63
(-258",894")
E62-W12
(74)
1.4 0.5 2.2e33
13 E35N33
(-466",581")
E46-E20
(26)
1.0 0.7 4.4e32
11 E27S75
(-118",-922")
E77-W64
(141)
0.7 -1.5 -3.6e33
14 E57S07
(-810",-81")
E70-E49
(21)
0.7 1.2 7.6e32
5 W46N04
(700",123")
W40-W55
(15)
0.4 1.9 4.5e32
15 E63S19
(-825",-289")
E78-E53
(25)
0.4 0.3 1.7e32
16 E54N09
(-783",193")
E57-E52
(5)
0.0 4.1 1.6e32
17 W29S02
(468",25")
W28-W30
(2)
0.0 -2.1 -2.3e31

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 12-Jan-2017 20:30 UT .