| Asteroid | Date(UT) | Miss Distance | Velocity (km/s) | Diameter (m) |
| 2026-Feb-11 | 0.4 LD | 12.4 | 3 |
| 2026-Feb-11 | 20 LD | 9.2 | 7 |
| 2026-Feb-11 | 15.6 LD | 6.5 | 21 |
| 2026-Feb-12 | 4.5 LD | 10.8 | 11 |
| 2026-Feb-12 | 5.1 LD | 7.2 | 16 |
| 2026-Feb-12 | 10 LD | 11.2 | 35 |
| 2026-Feb-12 | 3.7 LD | 18.4 | 14 |
| 2026-Feb-12 | 13.8 LD | 10.3 | 23 |
| 2026-Feb-12 | 15.4 LD | 5 | 18 |
| 2026-Feb-12 | 11.2 LD | 7 | 23 |
| 2026-Feb-12 | 4.7 LD | 11.3 | 10 |
| 2026-Feb-13 | 6.4 LD | 8.4 | 27 |
| 2026-Feb-13 | 10.3 LD | 5.3 | 26 |
| 2026-Feb-14 | 3.1 LD | 7.7 | 20 |
| 2026-Feb-14 | 10.5 LD | 2.7 | 59 |
| 2026-Feb-14 | 17 LD | 19.2 | 626 |
| 2026-Feb-14 | 19.5 LD | 10.2 | 56 |
| 2026-Feb-15 | 11.7 LD | 8.1 | 15 |
| 2026-Feb-15 | 0.7 LD | 5.4 | 3 |
| 2026-Feb-16 | 7.7 LD | 10.5 | 223 |
| 2026-Feb-17 | 0.4 LD | 5.6 | 3 |
| 2026-Feb-17 | 17.4 LD | 6.1 | 33 |
| 2026-Feb-18 | 5.4 LD | 8 | 25 |
| 2026-Feb-19 | 11 LD | 8.8 | 35 |
| 2026-Feb-20 | 12.2 LD | 6.3 | 66 |
| 2026-Feb-20 | 4.5 LD | 7.5 | 27 |
| 2026-Feb-20 | 11.3 LD | 7.3 | 81 |
| 2026-Feb-21 | 15.4 LD | 9.5 | 132 |
| 2026-Feb-21 | 4.2 LD | 11.4 | 22 |
| 2026-Feb-21 | 3 LD | 6.8 | 4 |
| 2026-Feb-21 | 9 LD | 8.8 | 65 |
| 2026-Feb-22 | 8.6 LD | 20.6 | 33 |
| 2026-Feb-22 | 17.4 LD | 3.1 | 32 |
| 2026-Feb-23 | 13.8 LD | 7.2 | 24 |
| 2026-Feb-23 | 14.6 LD | 8.6 | 27 |
| 2026-Feb-23 | 16.3 LD | 4 | 98 |
| 2026-Feb-23 | 13.3 LD | 6.4 | 34 |
| 2026-Feb-24 | 11.6 LD | 6.9 | 73 |
| 2026-Feb-24 | 8.3 LD | 7.9 | 9 |
| 2026-Feb-26 | 3.2 LD | 8.4 | 44 |
| 2026-Feb-27 | 13.4 LD | 4.5 | 12 |
| 2026-Feb-27 | 16.3 LD | 8.7 | 30 |
| 2026-Feb-28 | 10 LD | 9.9 | 32 |
| 2026-Mar-02 | 15.8 LD | 16.5 | 39 |
| 2026-Mar-03 | 13.9 LD | 8.9 | 34 |
| 2026-Mar-03 | 6.4 LD | 10.8 | 57 |
| 2026-Mar-06 | 6.3 LD | 4 | 14 |
| 2026-Mar-06 | 19.9 LD | 7.2 | 61 |
| 2026-Mar-08 | 13.4 LD | 16 | 43 |
| 2026-Mar-09 | 16.1 LD | 1.3 | 8 |
| 2026-Mar-10 | 14.7 LD | 10 | 55 |
| 2026-Mar-10 | 14.2 LD | 4.1 | 18 |
| 2026-Mar-11 | 7.8 LD | 12.7 | 3 |
| 2026-Mar-11 | 4.1 LD | 1.7 | 12 |
| 2026-Mar-11 | 9.4 LD | 9.1 | 27 |
| 2026-Mar-15 | 4.5 LD | 7.8 | 44 |
| 2026-Mar-17 | 19.6 LD | 9 | 75 |
| 2026-Mar-17 | 2.7 LD | 3.1 | 6 |
| 2026-Mar-18 | 18.2 LD | 7.2 | 9 |
| 2026-Mar-22 | 4.7 LD | 9.9 | 68 |
| 2026-Mar-24 | 10.1 LD | 6.5 | 9 |
| 2026-Mar-25 | 18.8 LD | 11 | 12 |
| 2026-Apr-03 | 9.8 LD | 6.4 | 5 |
| 2026-Apr-03 | 9.6 LD | 10.1 | 13 |
| 2026-Apr-04 | 2.6 LD | 7.2 | 50 |
| 2026-Apr-06 | 5.8 LD | 7 | 14 |
| 2026-Apr-07 | 4.9 LD | 7.5 | 5 |
| 2026-Apr-07 | 13.4 LD | 9.2 | 162 |
| 2026-Apr-10 | 12 LD | 9.2 | 15 |
| 2026-Apr-12 | 16.8 LD | 8.7 | 15 |
| 2026-Apr-14 | 0.7 LD | 7.4 | 20 |
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 |
Almost once a week, Spaceweather.com and the students ofEarth 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 10 years, resulting in a unique dataset ofin situ atmospheric measurements.
Latest results (Nov. 2024): Atmospheric radiation is sharply decreasing in 2024. Our latest measurements in November registered a 10-year low:
What's going on? Ironically, the radiation drop is caused by increasing solar activity. Solar Cycle 25 hasroared 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, andpenetrate commercial airplanes. According toa 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 listedcosmic 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 theRegener-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 iswhat 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. See also,all satellite statistics. |
| | 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 |
 | Got a chipped or cracked windshield that prevents you from seeing space weather events while driving? Getwindshield replacement from SR Windows & Glass with free mobile auto glass service anywhere in the Phoenix area. |
| | These links help Spaceweather.com stay online. Thank you to our supporters! |
 |
| Baltimore Car Accident Lawyers Onlinecasinoinformatie.com is an expert in comparing foreign online casinos for players in the Netherlands, offering reliable insights, clear reviews, and up-to-date information Trusted casinos not connected to GamStop Most Trusted seller for 1:1 super clone watches in the market Premium qualitysuper clone watches for sale with true 1:1 detailing Buy Instagram Followers Text:from Smikky! For the new best Norwegian casinos, visitnyecasino.com
Instant Famous, a reliable provider for followers, likes, and views on Instagram, Facebook, YouTube, TikTok, and more.
NonGamstopCasinos.net compares Non Gamstop Casinos and UK Casinos & Betting sites not on Gamstop. Independent casino reviews & exclusive bonus offers for British Gamblers. Zamsino is one of the most popular online casino guides in the world. Kiwislots.nz is the best free spins no deposit guide in New Zealand! Find your bestno deposit bonus in Germany at BetterBonus Adlerslots hat die besten neuen Boni ohne Einzahlung in Deutschland für dich zusammengestellt! BonusZonderStorting.com is de nummer 1 site om online casino's zonder storting in Nederland te vergelijken. Vind de nieuwste free spins-aanbiedingen ter wereld opLeeuwslots.com. Visitprestigewatches for best super clone watches and rolex replica for sale
| | | | | |
