The Barchan Dunes of Brazil

Images

Thursday, 13 July 2023

Former NASA astronaut Jack Fischer captured this photograph of Lagoa dos Barros and crescent-shaped barchan dunes on the Atlantic coastline of southern Brazil on July 9, 2017, while aboard the International Space Station.

Planetary Positions

04.11.2024 at 17:57:17 UTC

Planet	Longitude
The Sun	12 Sco 48' 38"
The Moon	18 Sag 49' 52"
Mercury	02 Sag 40' 45"
Venus	21 Sag 36' 13"
Mars	00 Leo 11' 42"
Jupiter	20 Gem 11' 06" R
Saturn	12 Pis 47' 44" R
Uranus	25 Tau 45' 04" R
Neptune	27 Pis 25' 59" R
Pluto	29 Cap 46' 36"

Solar Status

BZ Status:	3
Proton Density:	2.56
Proton Speed:	435.0 k/sec
KP Status:	2.33

Type	Nov 4	Nov 5	Nov 6
Active	35%	20%	20%
Minor	20%	5%	5%
Moderate	5%	1%	1%
Strong	1%	1%	1%
Kp Index Prediction
00-03UT	3.67	2.67	1.33
03-06UT	2.67	2.67	1.33
06-09UT	3.67	2.67	1.33
09-12UT	1.67	2.00	1.33
12-15UT	1.67	1.67	1.33
15-18UT	0.67	1.00	1.67
18-21UT	0.67	1.67	1.67
21-00UT	2.00	1.67	1.67
Solar Activity
Solar activity was at high levels, with frequent M-class flares. Region 3883 (S06E37, Ekc/gamma-delta) was responsible for the majority, including the largest of the period, an M3.8 (R1-minor) flare which had an associated CME and Types II and IV radio sweeps. Regions 3869 (S18W88, Dsi/beta-gamma) and 3878 (N16W30, Eki/beta) also produced an M-class flare.
Solar Wind
The solar wind environment was enhanced this period. Total field strength was predominantly greater 5 nT, with a max of 10 nT. The Bz component was southward at around -4/-6 nT after 03/1800 UTC. Solar wind speed ranged between 400-500 km/s. The phi angle positive for most of the period.
Energetic Particle
The greater than 10 MeV proton flux continued to slowly decrease throughout the period, ending at below 1 pfu. The greater than 2 MeV electron flux was at normal to moderate levels.

The Barchan Dunes of Brazil

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