Sunday, July 16, 2023

What's Up in Space

 

What's up in space
    
 

This is an AI Free Zone! Text created by ChatGPT and other Large Language Models is spreading rapidly across the Internet. It's well-written, artificial, frequently inaccurate. If you find a mistake on Spaceweather.com, rest assured it was made by a real human being.

 

IS A 'CANNIBAL CME' COMING? One CME left the sun on July 14th, followed by a second faster CME on July 15th. According to a NOAA model, the second CME will sweep up the first, forming a 'cannibal CME' that hits Earth on July 18th. The impact could spark G1 to G2-class geomagnetic storms. Aurora alerts: SMS Text

A DARK ERUPTION ON THE SUN (UPDATED): One of the most visually dramatic eruptions of Solar Cycle 25 occured on July 14th, when a spray of dark plasma flew away from the sun's southern hemisphere. NASA's Solar Dynamics Observatory recorded the event:

The explosion started in the magnetic canopy of AR3370, a small and previously unremarkable sunspot. X-ray sensors on Earth-orbiting satellites registered a C8.8-class solar flare at 1844 UT just before the dark ejecta appeared. What made it "dark"? It's not made of dark matter. Instead, plasma hurled away from the sunspot was relatively cool and dense, so it silhouetted the glow of the underlying sun.

Update: New images from SOHO confirm that this eruption did indeed produce a CME. It is the first of two CMEs merging to form the cannibal CME described above. The second CME was launched into space on July 15th by a C-class flare from big sunspot AR3363: movieSolar flare alerts: SMS Text

Realtime Space Weather Photo Gallery
Free:
 Spaceweather.com Newsletter

LASER-ETCHED MOON CUBE: Last week, the students of Earth to Sky Calculus launched a cosmic ray balloon to the stratosphere. This unique laser-etched Moon cube went along for the ride, ascending to an altitude of 101,140 feet:

You can have it for $119.95. The students are selling these cubes as a fund-raiser for their cosmic ray ballooning program. It's an authentic representation of the Moon, with all of the craters, mountains and lava plains accurately portrayed.

The Moon-cube comes with a unique gift card showing the item floating at the top of Earth's atmosphere. The interior of the card tells the story of the flight and confirms that this gift has been to the edge of space and back again.. . .

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 Jul 15, 2023, the network reported 11 fireballs.
(11 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

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Solar wind
speed: 363.3 km/sec
density: 0.16 protons/cm3
more data: ACEDSCOVR
Updated: Today at 0941 UT
X-ray Solar Flares
6-hr max: M1 
0826 UT Jul16
24-hr: M2 
1010 UT Jul15
explanation | more data
Updated: Today at: 0945 UT
Daily Sun: 16 Jul 23
Expand: labels | no labels | Carrington
Big sunspots AR3363 and AR3372 pose a continued threat for strong M-class solar flares. Credit: SDO/HMI

Sunspot number: 96
What is the sunspot number?
Updated 16 Jul 2023

Spotless Days
Current Stretch: 0 days
2023 total: 0 days (0%)
2022 total: 1 day (<1%)
2021 total: 64 days (18%)
2020 total: 208 days (57%)
2019 total: 281 days (77%)
2018 total: 221 days (61%)
2017 total: 104 days (28%)
2016 total: 32 days (9%)
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%)
2008 total: 268 days (73%)
2007 total: 152 days (42%)
2006 total: 70 days (19%)

Updated 16 Jul 2023


Thermosphere Climate Index
today: 20.41x1010 Warm
Max: 49.4
x1010 Hot (10/1957)
Min: 2.05
x1010 Cold (02/2009)
explanation | more data: gfxtxt
Updated 15 Jul 2023

The Radio Sun
10.7 cm flux: 179 sfu
explanation | more data
Updated 16 Jul 2023

Cosmic Rays Solar Cycle 25 is intensifying, and this is reflected in the number of cosmic rays entering Earth's atmosphere. Neutron counts from the University of Oulu's Sodankyla Geophysical Observatory show that cosmic rays reaching Earth are slowly declining--a result of the yin-yang relationship between the solar cycle and cosmic rays.

Oulu Neutron Counts

Percentages of the Space Age average:
today: -2.0% Below Average
48-hr change:-1.0%
Max: +11.7% Very High 
(12/2009)
Min: -32.1% Very Low (06/1991)
explanation | more data
Updated 15 Jul 2023 @ 1700 UT

 Current Auroral Oval:
Switch to: EuropeUSANew ZealandAntarctica
Credit: NOAA/Ovation
Planetary K-index
Now: Kp= 1.00 quiet
24-hr max: Kp= 2.33 
quiet
explanation | more data
Interplanetary Mag. Field
Btotal7.09 nT
Bz-1.96 nT south
more data: ACEDSCOVR
Updated: Today at 0941 UT
Coronal Holes: 16 Jul 23

There are no significant equatorial coronal holes on the Earthside of the sun. 
Credit: SDO/AIA

Noctilucent Clouds
The northern season for NLCs began on May 26th. The first clouds were detected inside the Arctic Circle by the NOAA 21 satellite. An instrument onboard NOAA 21 (OMPS LP) is able to detect NLCs (also known as "polar mesospheric clouds" or PMCs). For the rest of the season, daily maps from NOAA 21 will be presented here:


Updated: Jul 15, 2023

Each dot is a detected cloud. As the season progresses, these dots will multiply in number and shift in hue from blue to red as the brightness of the clouds intensifies.

What happened to NASA's AIM spacecraft, which has been monitoring NLCs since 2007? Earlier this year, the spacecraft's battery failed. As a result AIM is offline, perhaps permanently. There may be some hope of a recovery as AIM's orbit precesses into full sunlight in 2024. Until then, we will maintain AIM's iconic "daily daisy," frozen at Feb. 28, 2023, as a show of thanks for years of service and hope for future daisies:
Switch view:Ross Ice ShelfAntarctic PeninsulaEast AntarcticaPolar
Updated Jul15
SPACE WEATHER
NOAA Forecasts
Updated at: 2023 Jul 15 2200 UTC
FLARE
0-24 hr
24-48 hr
CLASS M
40 %
40 %
CLASS X
10 %
10 %
Geomagnetic Storms:
Probabilities for significant disturbances in Earth's magnetic field are given for three activity levels: activeminor stormsevere storm
Updated at: 2023 Jul 15 2200 UTC
Mid-latitudes
0-24 hr
24-48 hr
ACTIVE
20 %
35 %
MINOR
05 %
15 %
SEVERE
01 %
01 %
High latitudes
0-24 hr
24-48 hr
ACTIVE
20 %
20 %
MINOR
20 %
25 %
SEVERE
15 %
30 %
 

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