Live · NASA/JPL CNEOS · IAU MPC

Near-Earth objects now

What is passing, what is being watched, and what is still being confirmed — from the two organisations that actually do it.

Nothing on this dashboard knows where you are. Every value here is the same for every reader on Earth. The one page that does need a location — Tonight — takes it from a form and computes with it in your own browser. Your browser is never asked for your position, nothing is remembered between visits, and no coordinate is ever sent to AsteriaStar or placed in one of its URLs. If you choose to ask for a cloud forecast, your browser requests it from the Norwegian Meteorological Institute directly, with the coordinates rounded to about a kilometre — that is the only time anything you typed leaves your device, it goes to them and not to us, and the exact request is printed on the page.

None of this is something to go outside and look at.A close approach is a fact about an orbit, not an event in the sky: even an object passing inside the Moon's distance is far too faint for the naked eye and moves too fast to find without a telescope, a finder chart and an ephemeris computed for your location. This page reports what the agencies report. It is not an observing recommendation.

The counts

Live

Approaches within 0.05 au

Over the next sixty days, as JPL/CNEOS computes them.

Inside one lunar distance

A real threshold, and not a danger threshold — objects pass inside it routinely.

On the Sentry risk table

2204

Objects with any non-zero computed impact probability at all, most of them vanishingly small.

Above Palermo 0

At or beyond the background risk of a random object of the same size. Zero is the usual answer.

Above Torino 0

Torino 0 means no consequence. Anything above it would be news everywhere, not only here.

Awaiting confirmation

125

Candidates on the Minor Planet Center's confirmation page — most leave it within days.

The full near-Earth-object section →

The next close approach

2026 RB39 passes 1.0 lunar distances from Earth on 2026-09-17 02:29TDB — barycentric dynamical time, which is what JPL publishes and is not UTC. The distance is a prediction from a fitted orbit and travels with JPL's own three-sigma bounds on the full section.

Provenance

Provenance — jpl:close-approaches

Live

Status: Live
Kind: Model product
Provider: JPL Solar System Dynamics / CNEOS
Organisation: NASA Jet Propulsion Laboratory, California Institute of Technology
Fetched: 2026-09-16 18:59 UTC
Provider cadence: 1 d
Cached for: 1 h
Treated as stale after: 1 d
Licence: Public domain (US Government work), NASA/JPL-Caltech.

Source file: https://ssd-api.jpl.nasa.gov/cad.api?date-min=now&date-max=%2B60&dist-max=0.05&sort=date&fullname=true&diameter=true

Near-Earth object close approaches from JPL Solar System Dynamics / CNEOS, fetched from https://ssd-api.jpl.nasa.gov/cad.api?date-min=now&date-max=%2B60&dist-max=0.05&sort=date&fullname=true&diameter=true. Close-approach solutions change only when an object's orbit is refitted from new observations, which happens on a timescale of days. An hour's cache is far finer than that, and JPL's Fair Use Policy asks that automated requests not be unnecessarily frequent.

Times are TDB (barycentric dynamical time), not UTC — the provider publishes them that way and AsteriaStar does not silently convert them. Distances are the nominal solution with 3-sigma minimum and maximum bounds alongside; a close approach is a computed prediction from a fitted orbit, not an observation. The window is the next 60 days within 0.05 au (about 20 lunar distances).

Provenance — jpl:sentry

Live

Status: Live
Kind: Model product
Provider: JPL Solar System Dynamics / CNEOS
Organisation: NASA Jet Propulsion Laboratory, California Institute of Technology
Fetched: 2026-09-16 18:59 UTC
Provider cadence: 1 d
Cached for: 6 h
Treated as stale after: 1 d
Licence: Public domain (US Government work), NASA/JPL-Caltech.

Source file: https://ssd-api.jpl.nasa.gov/sentry.api

Sentry impact-risk table from JPL Solar System Dynamics / CNEOS, fetched from https://ssd-api.jpl.nasa.gov/sentry.api. Sentry is re-run when new observations arrive for a listed object; entries persist for months or years and change slowly. Six hours is well inside that, and keeps a page view from becoming a request to a research service.

Impact probabilities are JPL's own, with JPL's own caveat that they can be wrong by a factor of a few and occasionally by ten or more. Diameters are estimated from absolute magnitude assuming an albedo of 0.154 unless a measurement exists. Objects LEAVE this table when further observations eliminate their potential impacts — a disappearance is good news, not missing data. The Torino scale is defined only for potential impacts less than a century away.

Provenance — mpc:neocp

Live

Status: Live
Kind: Observation
Provider: IAU Minor Planet Center
Organisation: International Astronomical Union / Center for Astrophysics, Harvard & Smithsonian
Fetched: 2026-09-16 18:59 UTC
Provider cadence: 15 min
Cached for: 10 min
Treated as stale after: 12 h
Licence: Public data of the IAU Minor Planet Center.

Source file: https://minorplanetcenter.net/Extended_Files/neocp.json

NEO Confirmation Page (unconfirmed candidates) from IAU Minor Planet Center, fetched from https://minorplanetcenter.net/Extended_Files/neocp.json. The page is regenerated as observations arrive, and entries live on it for hours to days. Ten minutes bounds how long a new candidate is missing while keeping the request rate to a small file trivial.

These are CANDIDATES awaiting confirmation, not discoveries. An entry may prove to be an already-known object, not a near-Earth object at all, or an artefact, and most leave the page within days. The score is the MPC's estimate of how likely the object is a NEO — it is not a probability that the object exists, and it is not an impact risk.