Weekly Potentially Hazardous Asteroid and NEO Close Approach Report 22 April to 28 April Official NASA Planetary Defence Data

Astrophyzix Weekly Near-Earth Object (NEO) & Potentially Hazardous Asteroid (PHA) Close Approach Report

Written by: Astrophyzix Digital Observatory

Credit: Astrophyzix Planetary Defence Systems

Observatory Status & Data Integrity

Astrophyzix Planetary Defence reports are written using a fully dynamic, on-demand data retrieval pipeline linked directly to NASA's CNEOS NeoWs API infrastructure.

The monitoring interval is calculated at runtime and spans seven days forward from the exact timestamp of system access.

No caching layers, pre-processing, or static datasets are used. Every value presented is sourced from the most recent orbital solutions available within NASA systems at the time of query execution by the Astrophyzix Planetary Defence System.

Certain data is computed through the Astrophyzix Risk Index and presented alongside the raw data to give readers an easy to visualise scale of how notable an object is an a clear interpretation of the data.

UTC Timestamp Wed, 22 Apr 2026 20:10:55
Monitoring Window 2026-04-22 → 2026-04-28
Data Source NASA CNEOS NeoWs API (Live Stream)

Monitoring Overview

• Total NEOs tracked: 87
• Potentially Hazardous Asteroids: 8
• Objects within 10 Lunar Distances: 6
• Closest recorded approach: 2.956 LD
• Mean relative velocity: 13.7 km/s
• Largest object: 54071 (2000 GQ146) — 1418 m

Near Earth Object NEO Close Approach Report: Asteroid (2026 GD) Updated Solution JPL 2

Astrophyzix Near-Earth Object (NEO) Close Approach Report: (2026 GD) — Updated Solution (JPL 2) - Real Time NEO News

Written by: Astrophyzix Digital Observatory

📌 Cited by DiscoverWildScience 📌 Cited by MSN News 📌 Cited by Bing Copilot News

Image Credit: NASA JPL SBDB

Introduction

Asteroid (2026 GD) is an Apollo-class near-Earth object (NEO) currently undergoing rapid orbital refinement following its recent discovery in April 2026. This report is a follow-up of our initial report and is based on the updated JPL solution (Solution 2), incorporating an expanded observational dataset and improved orbital constraints.

The object is notable for an exceptionally close Earth flyby occurring on April 9, 2026, within lunar distance. Although the orbit remains classified with moderate uncertainty, current data provides a consistent and stable close-approach solution with no indication of impact risk.

Key Takeaways

• Very close Earth approach on 2026-Apr-09 at 22:59 (TBD) at ~0.00168 AU.
• Equivalent to approximately 0.65 lunar distances (~251,000 km).
• Relative velocity: ~12.66 km/s.
• Small object (~20–30 meters estimated diameter).
• Earth MOID: 0.000525 AU (very low orbital intersection distance).
• Orbit refined using 117 observations over 2 days.
• Condition code remains 7 (moderate uncertainty).
• No impact threat identified. 

Scientific Consensus Snapshot

The updated orbital solution reflects improved constraint quality due to an increased number of observations and an extended data arc. While uncertainties have decreased across all orbital parameters, the orbit remains in an early refinement stage. 

Close approach predictions are now more precise, particularly in timing, but continued observation is required to fully stabilise the solution.

Asteroid 2006 GC1 Potentially Hazardous Asteroid (PHA) Close Approach 2026 and Asteroid Profile - Astrophyzix Digital Observatory - Official Data Set

Astrophyzix Near-Earth Object (NEO) (PHA) Close Approach Report and Object Profile: Asteroid 2006 GC1 

Written by: Astrophyzix Digital Observatory

Image Credit: NASA JPL SBDB

📌 Referenced by iAsk Student

Introduction

A Potentially Hazardous Asteroid (PHA)  is a near-Earth object with an absolute magnitude of 22.0 or brighter (typically larger than ~140 metres) and a minimum orbit intersection distance (MOID) of 0.05 AU or less. This classification does not indicate an impact threat, but identifies objects that require precise orbital monitoring.

Asteroid (2006 GC1) is a well-characterised Apollo-class near-Earth object (NEO) and is formally classified as a Potentially Hazardous Asteroid (PHA). This designation is based on its size and its Minimum Orbit Intersection Distance (MOID) with Earth. Unlike recently discovered objects with short observational arcs, (2006 GC1) benefits from a long-term observational dataset spanning over 15 years, resulting in a highly constrained and reliable orbital solution.

This report provides a detailed orbital, physical, and close-approach analysis using data derived from the NASA JPL Small-Body Database and associated dynamical models. All values presented reflect current best-fit solutions and should be interpreted within the context of continuous observational refinement.

Key Takeaways

• (2006 GC1) is classified as both an Apollo NEO and a Potentially Hazardous Asteroid (PHA).

• Extremely well-constrained orbit (condition code 0) based on 92 observations over 15.3 years.

• Highly eccentric orbit (e = 0.817) with a perihelion deep inside Mercury’s orbital region.

• Estimated size range: ~200–400 meters (based on H = 20.5).

• Earth MOID: 0.00914 AU (~1.37 million km), within the PHA threshold.

• Next notable Earth close approach: 2026-Apr-05 at 0.08876 AU (~13.3 million km).

• Relative velocity during Earth encounter: ~30.66 km/s.

• No impact risk indicated for any known approach in current orbital solutions.

Scientific Consensus Snapshot

The orbital solution for (2006 GC1) is derived using high-precision numerical integrations incorporating the DE441 planetary ephemeris and perturbations from major solar system bodies. With a condition code of 0 and a multi-decade observation arc, the orbit is considered highly reliable. Uncertainty margins in orbital elements are extremely low, allowing for precise long-term trajectory propagation and close-approach prediction.

Near Earth Object (NEO) Close Approach Report: Asteroid 2026 FB6 Official Data Profile - Latest Asteroid News

Astrophyzix Near-Earth Object (NEO) Close Approach Report: 2026 FB6 - Real Time, Trusted Asteroid News 

Written by: Astrophyzix Digital Observatory 

📌 Referenced by iAsk Student

Introduction

This report presents an institutional summary of near-Earth asteroid 2026 FB6, an Apollo-class near-Earth object (NEO) with a trajectory that intersects Earth's orbital path. The analysis is based on orbital data derived from NASA’s JPL Small-Body Database and ephemerides generated using JPL dynamical models and planetary perturbation integrations.

Due to the limited observational arc and associated high condition code, orbital parameters remain uncertain and subject to refinement through continued astrometric tracking.

Key Takeaways (ADO) 

• 2026 FB6 is classified as an Apollo-type near-Earth asteroid.
• Semi-major axis: 1.658 AU, indicating an orbit extending well beyond Earth’s orbit.
• Eccentricity: 0.398, representing a moderately elongated orbit.
• Perihelion distance: 0.999 AU, near Earth’s orbital distance.
• Earth MOID: 0.0141 AU (~2.1 million km), indicating a relatively safe orbital separation.
• Absolute magnitude (H): 27.82, implying a small object (tens of meters in diameter, size dependent on albedo).
• Observational arc: 5 days with 17 observations; condition code: 9 (high uncertainty).
• Predicted close approach: 2026-Apr-04 03:48 TDB (±2 minutes).

Scientific Consensus Snapshot

Orbital solutions for 2026 FB6 are computed using heliocentric dynamics referenced to the JPL DE441 planetary ephemeris. The solution incorporates gravitational perturbations from major planetary bodies and is constrained by a limited observational dataset spanning five days. The high condition code indicates that additional observations are required to significantly reduce uncertainties in the orbital solution.

Mid-week CNEO Report 20 February 2026: Official Data Report

Written by: Astrophyzix Science Communication

Article type: Official CNEO Midweek Report
 

Midweek Planetary Defence Update: Close-Approach Near-Earth Objects

This midweek observational report summarises confirmed Near-Earth Object (NEO) close approaches recorded between 20 February 2026 and 23 February 2026. All orbital parameters correspond to official small-body trajectory solutions maintained by NASA's Jet Propulsion Laboratory Small-Body Database.

No objects in this reporting window present an impact threat to Earth. All listed objects remain on well-constrained trajectories with safe lunar-distance separations.