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Solar wind
speed: 404.4 km/sec
density: 4.3 protons/cm3
explanation | more data
Updated: Today at 0807 UT
X-ray Solar Flares
6-hr max: B7
0528 UT Jun30
24-hr: B7
0528 UT Jun30
explanation | more data
Updated: Today at: 0800 UT
Daily Sun: 30 Jun 15
Not one of these sunspots poses a threat for strong flares. Solar activity is low. Credit: SDO/HMI

Sunspot number: 36
What is the sunspot number?
Updated 30 Jun 2015

Spotless Days
Current Stretch: 0 days
2015 total: 0 days (0%)

2014 total: 1 day (<1%)
2013 total: 0 days (0%)
2012 total: 0 days (0%)
2011 total: 2 days (<1%)
2010 total: 51 days (14%)
2009 total: 260 days (71%)

Updated 30 Jun 2015


The Radio Sun
10.7 cm flux: 97 sfu
explanation | more data
Updated 30 Jun 2015

Current Auroral Oval:
Switch to: Europe, USA, New Zealand, Antarctica
Credit: NOAA/Ovation
Planetary K-index
Now: Kp= 2 quiet
24-hr max: Kp= 2
quiet
explanation | more data
Interplanetary Mag. Field
Btotal: 3.2 nT
Bz: 0.4 nT north
explanation | more data
Updated: Today at 0807 UT
Coronal Holes: 30 Jun 15

Solar wind flowing from the indicated coronal hole should reach Earth on July 6-7. Credit: SDO/AIA.
Noctilucent Clouds The northern season for NLCs is underway. NASA's AIM spacecraft spotted the first noctilucent clouds over the Arctic Circle on May 19th.
Switch view: Europe, USA, Asia, Polar
Updated at: 06-29-2015 16:55:04
SPACE WEATHER
NOAA Forecasts
Updated at: 2015 Jun 29 2200 UTC
FLARE
0-24 hr
24-48 hr
CLASS M
10 %
10 %
CLASS X
01 %
01 %
Geomagnetic Storms:
Probabilities for significant disturbances in Earth's magnetic field are given for three activity levels: active, minor storm, severe storm
Updated at: 2015 Jun 29 2200 UTC
Mid-latitudes
0-24 hr
24-48 hr
ACTIVE
10 %
15 %
MINOR
01 %
01 %
SEVERE
01 %
01 %
High latitudes
0-24 hr
24-48 hr
ACTIVE
20 %
20 %
MINOR
20 %
25 %
SEVERE
10 %
20 %
 
Tuesday, Jun. 30, 2015
What's up in space
 

Learn to photograph Northern Lights like a pro. Sign up for Peter Rosen's Aurora Photo Courses in Abisko National Park, winner of the TripAdvisor Certificate of Excellence Award 2015.

 
Lapland tours

QUIET SUN: Solar activity has returned to low levels. Indeed, with no sunspots actively flaring, the sun's X-ray output is flatlining. NOAA forecasters estimate a 10% chance of M-class solar flares and a scant 1% chance of X-flares on June 30th. Solar flare alerts: text or voice.

SUNSET SKY SHOW: Warning. Stepping outside at sunset could cause you to throw up your hands and shout, Look at that! McKenzie Watson experienced the phenomenon just last night in Jonesborough, Tennessee:

"McKenzie couldn't help but celebrate the conjunction of Venus and Jupiter,"explains photographer Mark Marquette. "It was breathtaking."

Anyone can have a similar experience in the nights ahead. Just step outside after sunset and face west. Venus and Jupiter are less than a degree apart. Don't wait until the sky fades to black. A tight conjunction of Venus and Jupiter framed by twilight blue has a special beauty that you won't want to miss.

The night of closest approach is June 30th, when Venus and Jupiter will be only 1/3rd of a degree apart. If you have binoculars or a small telescope, point them at the planets. Both will fit in the same field of view, allowing you to see the fat crescent phase of Venus and the moons of Jupiter simultaneously. It's a great way to end the day.

Realtime Space Weather Photo Gallery

DRAGON DEBRIS: On Sunday morning, a SpaceX Falcon 9 rocket lifted off from Cape Canaveral bound for the International Space Station. Two minutes and 19 seconds later, it exploded. The Dragon spacecraft on top of the rocket was carrying more than 4,000 pounds of food and supplies--suddenly turned to ash. A weather radar in Melbourne FL tracked the airborne debris:

"Figuring that the debris cloud would likely show up on Doppler, I pulled the NEXRAD data for the Melbourne radar," says Rob Matson, who created the graphic. "High altitude (21.5-km) debris first appears a little after 14:28 UT (10:28 am EDT), which was a little less than 5 minutes after the failure. This image is a composite of 29 sweeps over a period of about 12 minutes."

"I figure debris will starting washing ashore near Daytona in the next day or two," he adds.

SPACE WEATHER MUTATES MICROBES: Regular readers know that Spaceweather.com and the students of Earth to Sky Calculus have been launching microbes to the edge of space, more than half a dozen times since April. Carried aloft by helium balloons, halobacteria are now frequent fliers to the stratosphere. An early finding of this ongoing experiment is that the microbes are mutated during their trip, probably by exposure to galactic cosmic rays. Would they be mutated even more by a solar storm? That's what the students wanted to find out, so on June 22nd they launched a new batch of microbes during the strongest solar storm of 2015. Here is the payload 108,213 feet above Earth's surface:

At the time of the flight, a severe G4-class geomagnetic storm was underway. After nightfall, people would see auroras as far south as California and Arizona. In addition, a maelstrom of solar protons were bombarding Earth's magnetic field, producing a moderately-strong S2-class radiation storm.

Will any of this affect the mutation rate of the microbes? Microbiologists Shil and Priya DasSarma are culturing the halobacteria now in their NASA-funded laboratory at the University of Maryland. When their results are available and confirmed, we will share them.

Astrobiologists have a special interest in halobacteria. This extremophile has the ability to shield itself from harmful radiation and to repair damaged DNA. Researchers have speculated that it might be able to survive on the planet Mars. The temperature, air pressure, and radiation environment in Earth's stratosphere is similar to Mars, so a balloon flight is a good way to test halobacteria's "Red Planet readiness."

HEY, THANKS! All of the high-altitude astrobiology research featured on Spaceweather.com is crowd-funded. This particular flight was sponsored by Stuart Bayne, a.k.a. The Fire P.I., an expert investigator of fires and explosions. Here is his logo at the apex of the flight:

His generous donation of $500 paid for the helium, the balloon, and other supplies required to get this mission off the ground. In return, he will receive a full-length HD video of the flight. Thanks, Stuart!

Readers, would you like to sponsor a research flight and see your favorite photo or business logo at the edge of space? If so, please contact Dr. Tony Phillips to make arrangements.


Realtime Aurora Photo Gallery


Realtime NLC Photo Gallery


Realtime Sprite Photo Gallery


  All Sky Fireball Network

Every night, a network of NASA all-sky cameras scans the skies above the United States for meteoritic fireballs. Automated software maintained by NASA's Meteoroid Environment Office calculates their orbits, velocity, penetration depth in Earth's atmosphere and many other characteristics. Daily results are presented here on Spaceweather.com.

On Jun. 29, 2015, the network reported 13 fireballs.
(13 sporadics)

In this diagram of the inner solar system, all of the fireball orbits intersect at a single point--Earth. The orbits are color-coded by velocity, from slow (red) to fast (blue). [Larger image] [movies]

  Near Earth Asteroids
Potentially Hazardous Asteroids (PHAs) are space rocks larger than approximately 100m that can come closer to Earth than 0.05 AU. None of the known PHAs is on a collision course with our planet, although astronomers are finding new ones all the time.
On June 30, 2015 there were potentially hazardous asteroids.
Recent & Upcoming Earth-asteroid encounters:
Asteroid
Date(UT)
Miss Distance
Size
2015 MA54
Jun 25
6.8 LD
37 m
2005 VN5
Jul 7
12.6 LD
18 m
2015 HM10
Jul 7
1.1 LD
81 m
1994 AW1
Jul 15
25.3 LD
1.3 km
2011 UW158
Jul 19
6.4 LD
540 m
2013 BQ18
Jul 20
7.9 LD
38 m
1999 JD6
Jul 25
18.8 LD
1.6 km
2005 NZ6
Aug 6
76.5 LD
1.4 km
2005 JF21
Aug 16
20.1 LD
1.6 km
2004 BO41
Aug 31
57.3 LD
1.2 km
1991 CS
Sep 4
62.1 LD
1.4 km
Notes: LD means "Lunar Distance." 1 LD = 384,401 km, the distance between Earth and the Moon. 1 LD also equals 0.00256 AU. MAG is the visual magnitude of the asteroid on the date of closest approach.
  Essential web links
NOAA Space Weather Prediction Center
  The official U.S. government space weather bureau
Atmospheric Optics
  The first place to look for information about sundogs, pillars, rainbows and related phenomena.
Solar Dynamics Observatory
  Researchers call it a "Hubble for the sun." SDO is the most advanced solar observatory ever.
STEREO
  3D views of the sun from NASA's Solar and Terrestrial Relations Observatory
Solar and Heliospheric Observatory
  Realtime and archival images of the Sun from SOHO.
Daily Sunspot Summaries
  from the NOAA Space Environment Center
Heliophysics
  the underlying science of space weather
Columbia Northern High School
  Web-based high school science course with free enrollment
  more links...
 
 

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