You are viewing the page for Feb. 23, 2024
  Select another date:
<<back forward>>
You entered an invalid date. This is yesterday's edition.
SpaceWeather.com -- News and information about meteor showers, solar flares, auroras, and near-Earth asteroids
 
Solar wind
speed: 338.6 km/sec
density: 1.16 protons/cm3
more data: ACE, DSCOVR
Updated: Today at 1147 UT
X-ray Solar Flares
6-hr max: M2
1750 UT Feb23
24-hr: M2
1747 UT Feb23
explanation | more data
Updated: Today at: 2350 UT
Daily Sun: 23 Feb 24
Expand: labels | no labels | Carrington
Big sunspot AR3590 has a 'beta-gamma-delta' magnetic field that harbors energy for X-class solar flares. Credit: SDO/HMI

Sunspot number: 46
What is the sunspot number?
Updated 23 Feb 2024

Spotless Days
Current Stretch: 0 days
2024 total: 0 days (0%)
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 23 Feb 2024


Thermosphere Climate Index
today: 18.12x1010 W Warm
Max: 49.4
x1010 W Hot (10/1957)
Min: 2.05
x1010 W Cold (02/2009)
explanation | more data: gfx, txt
Updated 23 Feb 2024

The Radio Sun
10.7 cm flux: 173 sfu
explanation | more data
Updated 23 Feb 2024

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: -5.3% Low
48-hr change: -0.3%
Max: +11.7% Very High
(12/2009)
Min: -32.1% Very Low (06/1991)
explanation | more data
Updated 23 Feb 2024 @ 0700 UT

Current Auroral Oval:
Switch to: Europe, USA, New Zealand, Antarctica
Credit: NOAA/Ovation
Planetary K-index
Now: Kp= 0.67 quiet
24-hr max: Kp= 1.33
quiet
explanation | more data
Interplanetary Mag. Field
Btotal: 4.84 nT
Bz: 3.80 nT north
more data: ACE, DSCOVR
Updated: Today at 1147 UT
Coronal Holes: 22 Feb 24

A stream of solar wind flowing from this southern coronal hole could hit Earth on Feb. 26th.
Credit: SDO/AIA

Polar Stratospheric Clouds
Colorful Type II polar stratospheric clouds (PSC) form when the temperature in the stratosphere drops to a staggeringly low -85C. NASA's MERRA-2 climate model predicts when the air up there is cold enough:

On Feb. 23, 2024, the Arctic stratosphere is much too warm for Type II polar stratospheric clouds. | more data.

Noctilucent Clouds
The southern season for NLCs is over. The first clouds were detected inside the Antarctic Circle on Dec. 4, 2023, by the NOAA 21 satellite. The same satellite detected the last cloud on Feb. 21, 2024. Daily maps are now blank:

noctilucent clouds
Updated: Feb 22, 2024

An instrument onboard NOAA 21 (OMPS LP) is able to detect NLCs (also known as "polar mesospheric clouds" or PMCs). Now that the southern season has ended, attention turns to the northern hemisphere. The first NLCs should appear inside the Arctic Circle in mid to late May.

SPACE WEATHER
NOAA Forecasts
Updated at: 2024 Feb 23 2200 UTC
FLARE
0-24 hr
24-48 hr
CLASS M
60 %
60 %
CLASS X
30 %
30 %
Geomagnetic Storms:
Probabilities for significant disturbances in Earth's magnetic field are given for three activity levels: active, minor storm, severe storm
Updated at: 2024 Feb 23 2200 UTC
Mid-latitudes
0-24 hr
24-48 hr
ACTIVE
10 %
25 %
MINOR
01 %
10 %
SEVERE
01 %
01 %
High latitudes
0-24 hr
24-48 hr
ACTIVE
15 %
15 %
MINOR
20 %
25 %
SEVERE
20 %
35 %
 
Friday, Feb. 23, 2024
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.

 

GEOMAGNETIC STORM WATCH (G1): Minor G1-class geomagnetic storms are possible on Feb. 25th when a CME is expected graze Earth's magnetic field. The CME was *not* produced by this week's X-flares. Instead, it was hurled into space by an erupting filament of magnetism (movie) on Feb. 21st. Aurora alerts: SMS Text

THREE X-FLARES, ZERO CMES: Giant sunspot AR3590 is living up to the hype. In only 23 hours spanning Feb. 21-22, the active region unleashed three powerful X-class solar flares (X1.8, X1.7 and X6.3). The X6.3 flare is the strongest of Solar Cycle 25, so far, and the most powerful flare since the great solar storms of Sept. 2017.


The ultraviolet afterglow of yesterday's X6.3-class solar flare. Credit: NASA/SDO

Extreme ultraviolet radiation from each flare ionized the top of Earth's atmosphere, causing shortwave radio blackouts over Hawaii (late on Feb 21st), Australia (early on Feb. 22nd), and Hawaii again (late on Feb. 22nd). Mariners and ham radio operators in those areas may have noticed loss of signal at all frequencies below 30 MHz.

You might think all these flares would have hurled at least one CME toward Earth. In fact, the number is zero. SOHO coronagraphs have not detected any CMEs emerging from the blast zone. Sometimes this happens. Flares can occur without CMEs, and CMEs can occur without flares.

Disappointed aurora watchers shouldn't give up hope, though; AR3590 isn't finished. The sunspot has an unstable 'beta-gamma-delta' magnetic field that harbors energy for more X-class explosions. Solar flare alerts: SMS Text

Realtime Space Weather Photo Gallery
Free:
Spaceweather.com Newsletter

18K GOLD "LOVE YOU TO THE MOON" LOCKET: This is a very special locket. It's heart-shaped, plated with 18K gold, and we will fly it again during this year's total eclipse of the sun. Keep reading...

On Jan. 26, 2024, the students of Earth to Sky Calculus launched this locket to the stratosphere onboard a cosmic ray research balloon. At the apex of the flight, it floated 111,535 feet above the Sierra Nevada mountains of central California:

Buy it now for $149.95, and we'll fly it again--FOR FREE--during the total solar eclipse on April 8, 2024. The students will be launching multiple balloons from the path of totality in Texas. Your pendant will go along for the ride, touching the shadow of the Moon at the edge of space. (Simply type "FLY IT AGAIN" in the comments box at checkout.)

The locket, which opens to hold a personal photo or other small item, comes with a greeting card showing the jewelry in flight and telling the story of its journey to the edge of space.

Far Out Gifts: Earth to Sky Store
All sales support hands-on STEM education


Realtime Aurora Photo Gallery
Free:
Spaceweather.com Newsletter


Realtime Comet Photo Gallery
Free:
Spaceweather.com Newsletter

  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 Feb 23, 2024, the network reported 5 fireballs.
(5 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 February 23, 2024 there were 2349 potentially hazardous asteroids.
Recent & Upcoming Earth-asteroid encounters:
Asteroid
Date(UT)
Miss Distance
Velocity (km/s)
Diameter (m)
2024 CA8
2024-Feb-18
7.6 LD
26.1
49
2024 BC8
2024-Feb-18
6.2 LD
10.5
30
2024 DY
2024-Feb-18
0.4 LD
11.8
5
2024 CH2
2024-Feb-18
5.7 LD
9.6
22
2024 CJ6
2024-Feb-19
4.6 LD
15.4
18
2024 CV8
2024-Feb-19
1.2 LD
17.1
20
2024 DC
2024-Feb-19
12.5 LD
9.3
16
2024 DL1
2024-Feb-20
6.5 LD
10.1
13
2024 CK5
2024-Feb-20
7.3 LD
9.5
11
2024 DM1
2024-Feb-21
8.7 LD
7.5
14
2024 CL5
2024-Feb-21
4.8 LD
14
22
2024 DW
2024-Feb-22
0.6 LD
17.9
14
2024 CE8
2024-Feb-22
10.6 LD
18.8
29
2024 DX
2024-Feb-22
2 LD
10.4
12
2024 DJ1
2024-Feb-22
12.5 LD
13.5
34
2024 BY15
2024-Feb-23
12 LD
1.6
16
2024 CL3
2024-Feb-23
9.3 LD
4.2
19
2024 CT7
2024-Feb-27
6.2 LD
7.7
17
2024 CC7
2024-Feb-28
15.4 LD
6
19
2024 CE7
2024-Feb-28
13.6 LD
19.3
39
2024 DL
2024-Feb-29
4.6 LD
6.7
24
2024 CA7
2024-Feb-29
14.9 LD
32.5
113
2019 DA1
2024-Mar-03
14.6 LD
13.4
23
2024 CW6
2024-Mar-04
10 LD
2.5
10
2024 CK8
2024-Mar-04
6.9 LD
4.8
31
2024 DA1
2024-Mar-11
9.4 LD
9.9
49
2015 FM34
2024-Mar-12
19.4 LD
11.1
113
2020 FU
2024-Mar-15
14.9 LD
15.5
19
2024 CJ8
2024-Mar-16
17.3 LD
12.1
81
2020 FD
2024-Mar-18
4.5 LD
15.1
10
2024 BD7
2024-Mar-19
18.8 LD
10.1
140
2019 CJ
2024-Mar-24
12.4 LD
4.4
28
2021 CF6
2024-Mar-25
14.6 LD
8.3
62
2023 RO49
2024-Mar-29
14.1 LD
4.3
45
2015 MB54
2024-Mar-30
11.7 LD
3.8
54
2024 DQ
2024-Mar-30
6.4 LD
2.9
41
2018 CC14
2024-Apr-03
19.6 LD
8.9
115
2023 GC2
2024-Apr-04
8.7 LD
5.7
12
2005 FG
2024-Apr-08
18.4 LD
5.5
57
2020 BP13
2024-Apr-09
15.2 LD
6.8
209
2021 RJ19
2024-Apr-12
19.6 LD
11.4
25
2021 GQ5
2024-Apr-13
8.8 LD
7.5
7
2023 FN13
2024-Apr-14
3.3 LD
4.9
13
2022 UO1
2024-Apr-14
16.7 LD
14
33
517681
2024-Apr-15
18.4 LD
14.2
589
439437
2024-Apr-15
8.5 LD
16.5
609
2023 HU3
2024-Apr-18
15.9 LD
19.1
35
2021 JW2
2024-Apr-19
1.6 LD
5.1
11
2017 SA20
2024-Apr-19
3.8 LD
6.2
8
Notes: LD means "Lunar Distance." 1 LD = 384,401 km, the distance between Earth and the Moon. 1 LD also equals 0.00256 AU.
  Cosmic Rays in the Atmosphere

SPACE WEATHER BALLOON DATA: Almost once a week, Spaceweather.com and the students of Earth to Sky Calculus fly space weather balloons to the stratosphere over California. These balloons are equipped with sensors that detect secondary cosmic rays, a form of radiation from space that can penetrate all the way down to Earth's surface. Our monitoring program has been underway without interruption for 7 years, resulting in a unique dataset of in situ atmospheric measurements.

Latest results (July 2022): Atmospheric radiation is decreasing in 2022. Our latest measurements in July 2022 registered a 6-year low:

What's going on? Ironically, the radiation drop is caused by increasing solar activity. Solar Cycle 25 has roared to life faster than forecasters expected. The sun's strengthening and increasingly tangled magnetic field repels cosmic rays from deep space. In addition, solar coronal mass ejections (CMEs) sweep aside cosmic rays, causing sharp reductions called "Forbush Decreases." The two effects blend together to bring daily radiation levels down.

.Who cares? Cosmic rays are a surprisingly "down to Earth" form of space weather. They can alter the chemistry of the atmosphere, trigger lightning, and penetrate commercial airplanes. According to a study from the Harvard T.H. Chan school of public health, crews of aircraft have higher rates of cancer than the general population. The researchers listed cosmic rays, irregular sleep habits, and chemical contaminants as leading risk factors. A number of controversial studies (#1, #2, #3, #4) go even further, linking cosmic rays with cardiac arrhythmias and sudden cardiac death.

Technical notes: The radiation sensors onboard our helium balloons detect X-rays and gamma-rays in the energy range 10 keV to 20 MeV. These energies span the range of medical X-ray machines and airport security scanners.

Data points in the graph labeled "Stratospheric Radiation" correspond to the peak of the Regener-Pfotzer maximum, which lies about 67,000 feet above central California. When cosmic rays crash into Earth's atmosphere, they produce a spray of secondary particles that is most intense at the entrance to the stratosphere. Physicists Eric Regener and Georg Pfotzer discovered the maximum using balloons in the 1930s and it is what we are measuring today.

  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.
SolarMonitor.org
  information about sunspots based on the latest NOAA/USAF Active Region Summary
Starlink Satellite Statistics
  current counts of failed and deployed Starlink satellites from Jonathan's Space Page
The Aerospace Corporation
  Authoritative predictions of space junk and satellite re-entries
Daily Sunspot Summaries
  from the NOAA Space Environment Center
NOAA 27-Day Space Weather Forecasts
  fun to read, but should be taken with a grain of salt! Forecasts looking ahead more than a few days are often wrong.
Aurora 30 min forecast
  from the NOAA Space Environment Center
Live Aurora Webcam
  from Lights over Lapland
Heliophysics
  the underlying science of space weather

Spaceweather.com welcomes these supporters of science communication: RV Sales and Arizona Web Design & SEO and Ketamine Treatment & Therapy and C8 Corvette | Pest Control in PhoenixHVAC repair in South Jersey 

To get the best views of the cosmos, check out the Phoenix Window Glass Replacement experts for all your window and glass needs

To get an up close view of the heavenly bodies surrounding Earth, think about selling your junk car for cash and buying a high quality telescope.
Marketing yourself on YouTube is hard without real organic views on your videos. You can buy organic YouTube views from RealSocialz that are actually real. Highly recommended!
NASA Near Earth Asteroid Home Page

When looking for casinos to play online when the weather is bad, you can try the SkyCity Online Casino if you are located in New Zealand. If you are not from NZ you can try the Swedish page Svenska casino online to find suitable games, check out svenskacasinoonline.net. Always check your local laws before playing with real money..

BestCSGOGambling is the best site for everything related to CSGO gambling on the web

Find the best online casinos in India at AllCasinos.in 

Chicago SEO Expert
Search Kelowna Real Estate Listings & Homes for Sale easily.
Find help on all Calgary Homes For Sale and Real Estate Listings. Great source for Edmonton Real Estate Listings & Homes For Sale

Would you like to bet at sites not using GamStop? Look at a list of NonStopCasino sites for online betting that aren't on GamStop. Top-rated bookmakers ever!

  These links help Spaceweather.com stay online. Thank you to our supporters!
  more links...
 
 


Camp under Sahara stars on Morocco Desert Tours


Morocco Tours: Unleash your
inner adventurer!


Moon Phases


Get the best kitchen cabinets at affordable prices. Look no further than bestonlinecabinets.com.


Onlinecasinos.net lists and reviews gambling sites in Canada

Check out wholesalecabinets.us for the best wholesale cabinets online

* Utländska casino utan svensk licens. Spela utan att förlora pengar!

Check Casinomir for offshore gambling sites and casinos not on Gamstop

Casinos without Swedish license:  casino-utan-svensk-licens.net

สูตรบาคาร่า | gclub | สล็อต | slotxo | pgslot | super slot

Online Coupons Codes | Best Discount Codes

Web Design Essex



VIP Real Estate

US Zip Codes

Unit Converter

Directory

B2B Marketplace

Cableuniverse.co.uk

space weather alerts

Check out the best casinos without registration at Kasinot24.com

Katso kaikki parhaat nettikasinot suomalaisille pelaajille

buy instagram followers cheap

Bankruptcy Attorney San Diego

Basement Waterproofing Indianapolis

Concrete Leveling Indianapolis

Top Best Paint Sprayers

Discover Champions League betting tips at mestarien-liiga.fi

Find the best betting bonuses (Veikkausbonukset) at Oddstips FInland

Find the casino bonus at Oddstips.io

Find the best Zimpler casinos at zimlercasinos.fi

space weather alerts

best wireless webcam

space weather alerts




Top10BestPro 

space weather alerts

Dean Consulting Group

Rice, Murtha, Psoras - Car Accident Lawyers

space weather alerts

HEY! SOMEBODY'S GOTTA PAY THE SERVER BILLS...

Find out of this world progressive, daily, and must-go jackpots at JackpotRankings.com

Mola138 menghadirkan 16 provider Slot Online terkenal dunia didalam 1 situs judi online

* Dan Permainan Slot online terpercaya Online Di Idslot77 Kini Menarik Minat Para Pemain Judi Online Di Seluruh Indonesia

* Idslot77 Situs Judi slot777 and Pragmatic Play Online Terbaik Di Indonesia

* Get the latest UK no deposit casino bonuses at Casino Martini

* spin the wheel to win real money

* Discover licensed and trustworthy UK casino sites at CasinoPilot, your best guide to online gambling operators.

* Compare new casino sites from UK at https://newcasinouk.com/ and enjoy latest online deals


online slots


       
©2021 Spaceweather.com. All rights reserved. This site is penned daily by Dr. Tony Phillips.
©2019 Spaceweather.com. All rights reserved.