Countdown

Asteroid 99942 Apophis Earth Flyby

Name: Asteroid 99942 Apophis Earth Flyby
Start: 2029-04-13
Location: Global

Friday, April 13, 2029 · 890 days away

GlobalSpacescheduled

Countdown

Asteroid 99942 Apophis Earth Flyby

889

Days

Hours

Min

Sec

Reminders

Discord

Event overview

On April 13, 2029, asteroid 99942 Apophis (340 m) passes 31,000 km from Earth — closer than geostationary satellites. Naked-eye visible from Europe and Africa; ESA's Ramses and NASA OSIRIS-APEX rendezvous follow.

Date: 2029-04-13
Country / jurisdiction: Global
Region: Global
Category: Space
Status: scheduled

Editorial context

Why this date is being tracked

Asteroid 99942 Apophis makes its closest approach to Earth on April 13, 2029, passing within roughly 36,000 km (20,000 miles) of the planet's surface — closer than geostationary satellites at 35,786 km. The 340-meter near-Earth asteroid will be visible to the naked eye across the Eastern Hemisphere, peaking at apparent magnitude ~3.1 over Europe and Africa. NASA confirmed in 2021 that further radar tracking has ruled out any Earth impact risk for at least the next 100 years, overturning a 2.7% impact probability briefly assigned shortly after Apophis's 2004 discovery. The flyby has become a flagship target for planetary-science missions: NASA's OSIRIS-APEX (the renamed OSIRIS-REx) will rendezvous with Apophis after the close approach, and ESA's Ramses (Rapid Apophis Mission for Space Safety) is planned to arrive before the flyby to study the asteroid's response to Earth's tidal forces.

Manually verified sources

Last manual verification: 2026-05-11. This note adds context only; the source trail below still controls date confidence.

Confirmation checklist

Before you act on this countdown

Use the timer for orientation, then run through these checks before booking, publishing, buying tickets, scheduling alerts, or moving operations around this date.

Date signal

The date is suitable for countdown use, with the source still owning late changes.

Local time

No reliable start time is attached yet, so this page stays date-first instead of implying midnight.

Calendar action

Add it to a calendar after checking the source for time, venue, or access changes.

Next useful path

Use the Space and 2029 paths below to compare related countdowns before deciding what to watch next.

Source trail

Source trail for Asteroid 99942 Apophis Earth Flyby

Verify source

Primary source

cneos.jpl.nasa.gov

Last reviewed

2026-04-30

Tracker status

scheduled

Date precision

Single-date event without a reliable public start time; date-first countdown only.

Schema posture

Event structured data is emitted because the record is single-date and scheduled or confirmed.

This is an expected date. Use reminders and monitoring, but verify the source before making travel, purchase, publication, or staffing decisions.

Primary citation

The current date signal points to cneos.jpl.nasa.gov. The source URL is shown visibly on the page so readers can verify late changes instead of relying only on the timer.

Freshness and review

Source policy was reviewed on 2026-04-30. Live countdown values are render-time snapshots; editorial source fields update when the tracked event dataset changes.

Operational detail

The record does not carry a reliable public start time yet, so the page avoids implying a midnight or all-day start.

Weak-date handling

The page can support calendar actions and Event schema, while still telling readers to check the source for operational changes.

Background

About this countdown

A detailed editorial write-up for Asteroid 99942 Apophis Earth Flyby is being prepared. In the meantime, see the primary source for the most current information.

View source →

Date confidence

Scheduled date

Asteroid 99942 Apophis Earth Flyby is tracked as a scheduled event. The date is suitable for countdown and calendar use, while final logistics should still be checked against the linked source.

Source

https://cneos.jpl.nasa.gov/news/news203.html

Source host: cneos.jpl.nasa.gov
Date precision: Single scheduled date from the linked source
Schema posture: Event startDate emitted because the record is single-date and scheduled/confirmed
Planning boundary: Use as a monitoring aid until the source trail is stronger

Structured data posture

This page emits Event structured data because the tracked record has a single scheduled or confirmed date. The linked source remains the final reference for time, venue, and operational changes.

Countdown evidence

Retention class

Date-first scheduled countdown

Evidence score

6/10 record signals

City-page readiness

Held to date-first

Evidence score6/10 signals present: primary source URL; tracked date; schema-safe date; place context; manual official-source note; related event cluster
Date and schemaSchema-safe single date: Single-date event without a reliable public start time; date-first countdown only. Event structured data is emitted because the record is single-date and scheduled or confirmed.
Local-time readinessDate-first only: The record is not used as a city-local event page until it has a reliable time, timezone, and non-windowed date.
Record completeness1 concrete fields: country Global
Weak-field watchlist3 fields to improve: verified public start time; venue; historical sequence
Source freshnesscneos.jpl.nasa.gov; reviewed 2026-04-30: Related crawl path: Indonesia General Election 2029, Pakistan General Election 2029, Apollo 11 Moon Landing — 60th Anniversary, Bitcoin Genesis Block — 20th Anniversary.

Planning notes

How to use this Asteroid 99942 Apophis Earth Flyby countdown

Countdown pages are useful when they are honest about what is known, what is merely expected, and what still needs checking. This page keeps the live timer separate from the source confidence and structured-data posture.

Date confidence

Asteroid 99942 Apophis Earth Flyby is tracked as scheduled for Friday, April 13, 2029; the countdown can support reminders while final logistics still belong to cneos.jpl.nasa.gov. The page can emit precise Event structured data because the tracked record has a single scheduled or confirmed date.

What could change

Watch for date shifts, venue or access updates, broadcast windows, registration rules, and source corrections. The current precision is: Single-date event without a reliable public start time; date-first countdown only..

Local-time usefulness

No reliable source start time is attached yet, so the page stays date-first and avoids implying a midnight start. 890 days remain at render time.

Category context

Asteroid 99942 Apophis Earth Flyby sits in Space with Global context. Related countdown links should help users compare similar events, not create unverified event-city pages.

Catalog-specific details

No creator, platform, league, brand, fixture, family, or alternate-name detail is attached to this event record.

Series and expectation notes

No series history, end date, or what-to-expect field is attached.

Priority note

This page is kept specific through source confidence, category, region, date precision, and update notes rather than generic countdown filler.

Verification trail

source URL https://cneos.jpl.nasa.gov/news/news203.html. trust checks: Source host: cneos.jpl.nasa.gov, Date precision: Single scheduled date from the linked source, Schema posture: Event startDate emitted because the record is single-date and scheduled/confirmed, and Planning boundary: Use as a monitoring aid until the source trail is stronger. manual editorial context is attached.

Record completeness

present fields: country Global. missing or weak fields: verified public start time, venue, and historical sequence

Related crawl path

Nearby retained events: Indonesia General Election 2029, Pakistan General Election 2029, Apollo 11 Moon Landing — 60th Anniversary, Bitcoin Genesis Block — 20th Anniversary, and Christmas 2028. These links should support topical discovery without creating unverified event-city pages.

Review boundary: this page tracks the public date signal, source link, category, region, and calendar posture. It does not replace official ticketing, exchange, broadcaster, organizer, court, regulator, or government notices.

Source reviewed Apr 30, 2026. The countdown record is intentionally labeled as scheduled or expected; use the source link and any range notes before treating the date as final.

Live values rendered at Nov 5, 7:06 PM UTC.

Related planning pages

Countdown hubAll currently tracked countdowns.Space countdownsRelated events in this category.2029 countdownsEvents tracked for the same calendar year.SourcesHow we cite and review date sources.Speculative datesHow expected and windowed dates are labeled.

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Frequently asked questions

When does Asteroid 99942 Apophis Earth Flyby start?

Asteroid 99942 Apophis Earth Flyby is scheduled for Friday, April 13, 2029. A precise local start time has not been published yet; this page updates when the source confirms it.

How long until Asteroid 99942 Apophis Earth Flyby?

Asteroid 99942 Apophis Earth Flyby is 890 days away as of the page render. The live timer above counts down to Friday, April 13, 2029 second-by-second in your local time zone.

What time is Asteroid 99942 Apophis Earth Flyby in my time zone?

Use the time-zone converter to map Friday, April 13, 2029 into your local zone, or pick a major city from the list above to see the exact local start time.