| | Switch to: Europe, USA, New Zealand, Antarctica Credit: NOAA/Ovation Planetary K-index Now: Kp= 1.00 quiet 24-hr max: Kp= 2.00 quiet explanation | more data Interplanetary Mag. Field Btotal: 0.91 nT Bz: 0.69 nT north more data: ACE, DSCOVR Updated: Today at 1147 UT Coronal Holes: 11 Nov 23 There are no significant 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: Aug. 29, 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 Shelf, Antarctic Peninsula, East Antarctica, Polar Updated Nov11 SPACE WEATHER NOAA Forecasts | | Updated at: 2023 Nov 11 2200 UTC FLARE | 0-24 hr | 24-48 hr | CLASS M | 30 % | 30 % | CLASS X | 05 % | 05 % | Geomagnetic Storms: Probabilities for significant disturbances in Earth's magnetic field are given for three activity levels: active, minor storm, severe storm Updated at: 2023 Nov 11 2200 UTC Mid-latitudes | 0-24 hr | 24-48 hr | ACTIVE | 30 % | 30 % | MINOR | 35 % | 15 % | SEVERE | 20 % | 01 % | High latitudes | 0-24 hr | 24-48 hr | ACTIVE | 15 % | 15 % | MINOR | 20 % | 25 % | SEVERE | 30 % | 35 % | | | | | | | | | | | | 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. | | | COSMIC RAY EXPEDITION TO ECHO LAKE: Will six times be the charm? Today, Dr. Tony Phillips is leading a team of climbers to a 12,000 ft glacier overlooking Echo Lake in California's Eastern Sierra. Their mission: To chisel a cosmic ray balloon payload full of radiation sensors out of the ice. Twist: They have to find it first. The payload has been lost for more than a year, but clues obtained from their 5th expedition to the balloon's landing site two weeks ago may lead them to it. Today's edition of Spaceweather.com will be only lightly updated while the staff are away. GEOMAGNETIC STORM WATCH (G2): Another CME is heading for Earth. Coronagraphs onboard the Solar and Heliospheric Observatory (SOHO) saw it leaving the sun on Nov. 9th: Estimated time of arrival: Nov. 11th. NOAA and NASA models agree that the cloud will strike on Saturday around 1800 UT. Its impact could spark a G2-class geomagnetic storm--not quite as strong as the G3-class event of Nov. 5th, but still enough to produce auroras in northern-tier US states from New York to Washington. Would you like an instant text message when the CME arrives? Sign up for our Space Weather Alert Service. You won't have to worry about missing the storm. Realtime Aurora Photo Gallery Free: Spaceweather.com Newsletter VOYAGER GOLDEN RECORD CHRISTMAS ORNAMENT: This is a must-have Christmas ornament for space fans: The Voyager Golden Record. On Oct. 31, 2023, the students of Earth to Sky Calculus launched it to the stratosphere onboard a cosmic ray research balloon: You can have it for $99.95. The 3-inch aluminum disk is imprinted with instructions intended for extraterrestrials, telling them how to play the phonographs now sailing through interstellar space onboard NASA's Voyager probes. Having touched the edge of space, it's the closest thing on Earth to an actual Golden Record. The students are selling these unique ornaments to support their cosmic ray ballooning program. Each one comes with a greeting card showing the ornament in flight and extra materials decoding the markings on the disk. Far Out Gifts: Earth to Sky Store All sales support hands-on STEM education Realtime Space Weather Photo Gallery Free: Spaceweather.com Newsletter Realtime Comet Photo Gallery Free: Spaceweather.com Newsletter 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 Nov 10, 2023, the network reported 14 fireballs. (10 sporadics, 4 Northern Taurids) 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] 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 November 11, 2023 there were 2349 potentially hazardous asteroids. | Recent & Upcoming Earth-asteroid encounters: Asteroid | Date(UT) | Miss Distance | Velocity (km/s) | Diameter (m) | 2023 UG4 | 2023-Nov-06 | 6.5 LD | 3.5 | 18 | 2023 VG1 | 2023-Nov-06 | 7.9 LD | 10.3 | 13 | 2023 TO15 | 2023-Nov-06 | 15.2 LD | 11.2 | 50 | 2023 VF4 | 2023-Nov-06 | 7.8 LD | 12.8 | 27 | 2023 VJ5 | 2023-Nov-06 | 10.8 LD | 8.1 | 36 | 2023 VS4 | 2023-Nov-06 | 2.1 LD | 10.6 | 7 | 2023 VY4 | 2023-Nov-06 | 2.8 LD | 16.7 | 12 | 2023 VE | 2023-Nov-07 | 3.1 LD | 12.1 | 11 | 2023 VS | 2023-Nov-07 | 1 LD | 3.5 | 4 | 2023 VH2 | 2023-Nov-07 | 17.3 LD | 14.3 | 29 | 2023 VB2 | 2023-Nov-07 | 0.1 LD | 18 | 8 | 2023 VP3 | 2023-Nov-07 | 0.3 LD | 6.6 | 5 | 2023 VK6 | 2023-Nov-07 | 5.7 LD | 10.2 | 15 | 2023 VD2 | 2023-Nov-07 | 0.1 LD | 8.1 | 3 | 2023 VZ3 | 2023-Nov-07 | 11.1 LD | 13.9 | 18 | 2023 VF6 | 2023-Nov-07 | 6.1 LD | 5.6 | 13 | 2023 VR | 2023-Nov-07 | 2.4 LD | 11.8 | 10 | 2023 VC4 | 2023-Nov-08 | 1 LD | 9.5 | 15 | 2023 TD14 | 2023-Nov-08 | 9.3 LD | 6.3 | 25 | 2023 VO6 | 2023-Nov-08 | 6 LD | 5.3 | 9 | 2023 VD3 | 2023-Nov-08 | 1.3 LD | 17.9 | 14 | 2023 VZ2 | 2023-Nov-08 | 5.6 LD | 11.2 | 15 | 2023 VW | 2023-Nov-08 | 1.7 LD | 8 | 9 | 2023 VC | 2023-Nov-09 | 6.3 LD | 9.6 | 29 | 2023 VE6 | 2023-Nov-09 | 1.9 LD | 9.1 | 14 | 2023 VN1 | 2023-Nov-09 | 14.4 LD | 7.6 | 14 | 2023 VU2 | 2023-Nov-10 | 1.9 LD | 6.1 | 8 | 2023 VT3 | 2023-Nov-10 | 11.1 LD | 7.5 | 19 | 2023 VD4 | 2023-Nov-10 | 0.4 LD | 15.6 | 8 | 2023 VY3 | 2023-Nov-11 | 3.5 LD | 16.1 | 11 | 2023 VD1 | 2023-Nov-11 | 17.1 LD | 10 | 33 | 2023 VQ5 | 2023-Nov-11 | 3.5 LD | 6.8 | 11 | 2023 VL2 | 2023-Nov-11 | 2.7 LD | 5.9 | 8 | 2023 VK3 | 2023-Nov-11 | 7.4 LD | 3.7 | 8 | 2023 VU4 | 2023-Nov-11 | 12.3 LD | 5.3 | 16 | 2023 UQ4 | 2023-Nov-11 | 10.7 LD | 8.4 | 39 | 2023 VF3 | 2023-Nov-12 | 8.9 LD | 9 | 19 | 2023 VR3 | 2023-Nov-12 | 5.9 LD | 7.7 | 19 | 2023 VK1 | 2023-Nov-12 | 10.1 LD | 9.1 | 27 | 2023 TZ2 | 2023-Nov-12 | 19 LD | 2.8 | 24 | 2023 VY1 | 2023-Nov-13 | 8.9 LD | 6.3 | 39 | 2014 BA3 | 2023-Nov-13 | 15.7 LD | 2.7 | 8 | 2023 VV1 | 2023-Nov-13 | 2 LD | 3.7 | 6 | 2023 VP4 | 2023-Nov-13 | 3 LD | 5.7 | 7 | 2023 VX | 2023-Nov-13 | 17.4 LD | 11.1 | 53 | 2023 VR4 | 2023-Nov-14 | 17.9 LD | 10.5 | 90 | 2023 UO | 2023-Nov-15 | 6.4 LD | 6.8 | 36 | 2023 VL6 | 2023-Nov-15 | 8.8 LD | 5.1 | 18 | 2021 TN3 | 2023-Nov-15 | 17 LD | 6.3 | 31 | 2019 VL5 | 2023-Nov-16 | 8.5 LD | 8.2 | 24 | 2023 VG5 | 2023-Nov-17 | 5.8 LD | 23.4 | 24 | 2023 VX4 | 2023-Nov-17 | 7 LD | 3.9 | 11 | 2023 VK4 | 2023-Nov-17 | 12.3 LD | 11.9 | 24 | 2019 LB1 | 2023-Nov-18 | 15.8 LD | 4.2 | 14 | 2016 DK1 | 2023-Nov-19 | 5.3 LD | 6.8 | 12 | 2022 VR1 | 2023-Nov-19 | 8.1 LD | 6.1 | 39 | 2023 VE4 | 2023-Nov-20 | 13.3 LD | 11.6 | 37 | 2023 VW5 | 2023-Nov-21 | 4.4 LD | 11.2 | 31 | 2023 VH6 | 2023-Nov-23 | 6.8 LD | 7.3 | 29 | 2019 UT6 | 2023-Nov-24 | 9 LD | 13.2 | 141 | 2019 CZ2 | 2023-Nov-25 | 2.8 LD | 5.8 | 44 | 2023 VH5 | 2023-Nov-25 | 17.8 LD | 9 | 32 | 2023 VM1 | 2023-Nov-26 | 10.9 LD | 8.9 | 43 | 2013 UB3 | 2023-Nov-27 | 18.5 LD | 5.4 | 25 | 2023 VR5 | 2023-Nov-29 | 5.6 LD | 2.8 | 10 | 1998 WB2 | 2023-Dec-03 | 11 LD | 14.2 | 151 | 2013 VX4 | 2023-Dec-04 | 5.1 LD | 6.6 | 60 | 2023 TB27 | 2023-Dec-06 | 17 LD | 4.3 | 45 | 139622 | 2023-Dec-06 | 14.4 LD | 6.7 | 719 | 2020 HX3 | 2023-Dec-10 | 9.8 LD | 15.7 | 13 | 2010 XF3 | 2023-Dec-11 | 19.4 LD | 4 | 46 | 2016 XD2 | 2023-Dec-19 | 18.7 LD | 6.9 | 59 | 341843 | 2023-Dec-20 | 16.5 LD | 5.3 | 344 | 2018 YJ2 | 2023-Dec-21 | 18.4 LD | 13.1 | 154 | 2022 YG | 2023-Dec-22 | 10.8 LD | 5.1 | 17 | 2023 VD6 | 2023-Dec-23 | 10.6 LD | 15.5 | 167 | 2020 YO3 | 2023-Dec-23 | 3.6 LD | 16.6 | 42 | 2010 UE51 | 2023-Dec-24 | 9 LD | 1.3 | 7 | 2020 YR2 | 2023-Dec-25 | 13.8 LD | 8 | 8 | 2021 AM6 | 2023-Dec-31 | 18.3 LD | 6.6 | 17 | 2019 KK5 | 2024-Jan-03 | 10.6 LD | 20.9 | 98 | 2002 AY1 | 2024-Jan-08 | 15.2 LD | 17.3 | 230 | 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. | The official U.S. government space weather bureau | | The first place to look for information about sundogs, pillars, rainbows and related phenomena. | | Researchers call it a "Hubble for the sun." SDO is the most advanced solar observatory ever. | | 3D views of the sun from NASA's Solar and Terrestrial Relations Observatory | | Realtime and archival images of the Sun from SOHO. | | information about sunspots based on the latest NOAA/USAF Active Region Summary | | current counts of failed and deployed Starlink satellites from Jonathan's Space Page | | Authoritative predictions of space junk and satellite re-entries | | from the NOAA Space Environment Center | | fun to read, but should be taken with a grain of salt! Forecasts looking ahead more than a few days are often wrong. | | from the NOAA Space Environment Center | | the underlying science of space weather | | When looking for casinos to play online when the weather is bad, you can try casino online trucchi for Italian games. If you are not from Finland 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 | | These links help Spaceweather.com stay online. Thank you to our supporters! | | | | | | | | | | | | ©2021 Spaceweather.com. All rights reserved. This site is penned daily by Dr. Tony Phillips. | |