At a very low altitude in astronomical terms, a small object designated 2025 TF passed Earth at about 400 kilometers, a strip similar to that of the orbit of the International Space StationIt was a completely safe flyby, and despite the proximity, it posed no threat.
Official data place the maximum approximation at October 1 at 00:49 GMT over the Antarctic regionCalculations by the Center for Near Earth Object Studies (CNEOS/JPL) indicate a nominal distance of 6.780 km from the center of the planet, equivalent to about 423 km of altitude above the surface.
What exactly happened
It is a tiny asteroid, with an estimated diameter of between 1,2 and 2,7 meters, comparable to the size of a sofa. Due to their small size and brightness, telescopes They were only able to locate him hours later from their point of closest approach. This type of small asteroids present precisely that observational challenge.
The surveillance program Catalina Sky Survey was the first to report the object after the close pass, and the Minor Planet Center distributed a circular with the observations collected by several observatories. With this data, astronomers accurately reconstructed the trajectory and altitude of the flyby on the Antarctic continent.
Figures published by CNEOS/JPL confirm that the event falls within the safe and well-documented approaches, reinforcing coordination between survey networks, data centers and observatories to validate measurements of near-Earth objects.
Was there danger to the Earth?
The specialists have been clear: there was no risk. With a size of just a couple of meters, an object of these characteristics would completely disintegrate in the atmosphere, generating at most a ball of fire ephemeral if it were to enter.
Even so, his close passing draws attention because transited to altitudes comparable to those of low orbit, where the ISS and numerous satellites operate. In this case, the geometry of the trajectory and the timing of the flyby avoided any conflict with space vehicles.
These meetings serve the scientific community to test surveillance protocols and refine orbital dynamics models. Each such event provides valuable data on the population of bodies. small in size in the near-Earth environment.
Why it was detected after closest approach
Finding rocks that are just a few meters tall is complicated because reflect very little light and only become detectable when they are extremely close. Furthermore, they move quickly against the stellar background, which requires observation chains. highly automated.
- The surveys of the sky take thousands of images per night and look for points that change position in relation to the stars.
- The teams forward the detections to the Minor Planet Center, which consolidates reports and calculates preliminary orbits.
- With more measures, centers like CNEOS/JPL refine trajectory and estimate distances and times of approach.
Thanks to this global infrastructure, today they are recorded several safe approaches each weekAmong the closest documented is the asteroid 2020 VT4, which passed at an altitude of about 370 km in 2020, a precedent that helps contextualize the proximity of 2025 TF.
The passing of 2025 TF has been a useful reminder: a very close, well-measured, and non-threatening event, which underlines the importance of maintaining and improving security systems. detection and monitoring of near-Earth objects.
