PHA and NEO Asteroid Close Approach Report 08 October 2026
Near-Earth Object (NEO) Candidate Report: Scout Object P12r4oM, October 8, 2026
Single-object report for P12r4oM, an unconfirmed object on the NEO Confirmation Page (NEOCP), compiled from JPL Scout data as listed in the Astrophyzix V9 tracker. This bulletin data was current and correct at time of publication, however due to the continuous dynamics of asteroids - the data may change. This should be deemed a catalogue report, not a "live at time of reading" report. Real time data is available using the Live Multi-watch CAD/Scout/Sentry tracker. To view previous reports click here.
On October 8, 2026 (UTC), JPL Scout lists P12r4oM, an unconfirmed NEOCP candidate last updated 2026-10-07 08:42 UTC. With an absolute magnitude of 19.7 it would be roughly 408 m across (305–682 m, H-derived), but it has only 7 observations over a 22.48-hour arc, so its orbit is poorly known. Scout gives it a NEO score of 3, a PHA score of 0 and an impact rating of 0. No close approach has been computed: the tracker’s 233.5 LD “miss distance” is the 0.6 au MOID, not a predicted flyby.
Orbit Samples – Scroll Left/Right
| Sample | e | q (au) | Ω (deg) | ω (deg) | i (deg) | H (mag) | MOID (au) | Impact |
|---|---|---|---|---|---|---|---|---|
| 0 | 0.1160109 | 1.7000740 | 256.60073 | 206.53181 | 19.34690 | 19.9 | 0.7265 | false |
| 1 | 0.2335499 | 1.6122820 | 273.46747 | 18.76541 | 17.83349 | 19.7 | 0.6029 | false |
| 2 | 0.0543080 | 1.8326640 | 259.07397 | 209.92282 | 19.45077 | 19.7 | 0.8571 | false |
| 3 | 0.9039104 | 1.1759579 | 299.71856 | 352.48784 | 19.08401 | 19.2 | 0.1625 | false |
| 4 | 0.4507366 | 1.4333139 | 281.59688 | 7.48286 | 18.32280 | 19.4 | 0.4181 | false |
| 5 | 0.5820589 | 1.3383853 | 288.42730 | 3.16339 | 18.10692 | 19.4 | 0.3221 | false |
| 6 | 0.1685968 | 1.6109784 | 254.23766 | 209.57906 | 19.64159 | 19.9 | 0.6431 | false |
First 7 of 1,000 orbit samples from JPL Scout, common epoch JD 2461319.91123 TDB (≈ 2026-Oct-06 09:52 TDB). None of the samples shown is flagged as a geocentric or impacting orbit.
Sampled Orbit Family
P12r4oM
Scout does not give a single orbit or dynamical class for an unconfirmed object. The values below summarise the sampled orbit family shown in the Astrophyzix tracker (300 samples).
JPL Scout record: cneos.jpl.nasa.gov/scout/#/object/P12r4oM
Scout Scores & Ephemeris
Ephemeris for 2026-10-08 00:00 UTC; scores are on Scout’s 0–100 scale (impact rating as listed by Scout).
P12r4oM is an unconfirmed Scout NEOCP candidate with 7 observations over a 22.48-hour arc (RMS 0.46), last updated 2026-10-07 08:42 UTC. Its H of 19.7 implies roughly 408 m (305–682 m, H-derived). Scout rates it NEO 3, PHA 0 and impact rating 0, and none of the tracker’s 300 sampled orbits is flagged as a potential Earth impactor. The sampled family is broad (e 0.008–0.904, i 17.1–20.6 deg, MOID roughly 0.1–0.95 au in the JPL plots) and most sampled perihelia lie beyond the 1.3 au NEO limit, so whether it is a near-Earth object at all is still unconfirmed. No close approach has been computed, and the tracker’s 233.5 LD figure is the 0.6 au MOID with velocity shown as 0.00 km/s. Treat every value as provisional until follow-up observations confirm or reject the object.
Size estimate
- Diameter self-test
- D[km] = 1329 / sqrt(pv) × 10(−H/5), pv 0.25–0.05 (Bowell)
- Basis
- H-derived, not measured: 305 m (pv 0.25), 408 m (pv 0.14), 682 m (pv 0.05)
Miss distance
- Close approach
- Not computed by Scout (CA distance and v∞ are blank)
- Tracker miss distance
- 233.503 LD = the 0.6 au MOID; velocity shown as 0.00 km/s because none is supplied
Orbit samples
- Sampled orbits
- Orbits fitted to the current observation arc; the tracker uses 300, the JPL Scout page lists 1,000
- Impactor flag share
- Share of sampled orbits flagged as potential Earth impactors; not an impact probability
Scoring
- PHA-class rule
- Scout phaScore ≥ 50 counts as PHA-class; this object scores 0
- ARI
- Astrophyzix Risk Index (tracker-derived), 20
- Trajectory integration
- None (catalogue report)
Constants
- Astronomical unit
- 149,597,870.7 km (IAU 2012 Resolution B2)
- Lunar distance
- 384,400 km (JPL/IAU nominal mean)
- Earth mean radius
- 6,371 km (IUGG)
- Time scale
- Scout times are UTC; sample epochs are JD
Report
- Layout
- Astrophyzix-NEO-Daily/2.2.0 (single-object Scout report)
- Object
- P12r4oM (NEOCP, unconfirmed)
- Generated (UTC)
- Report date
Analysis
- Scout NEO score
- 3
- Scout PHA score
- 0
- Impact rating
- 0
- Observations / arc
- 7 observations over 22.48 h
- ARI
- 20 (SAFE)
Source 1 – JPL Scout object table
- Last update (UTC)
- Ephemeris time (UTC)
- Retrieved
Source 2 – JPL Scout orbit samples
- Listing
- 1,000 orbit samples, common epoch JD 2461319.91123 TDB (≈ 2026-Oct-06 09:52 TDB)
- Retrieved
Source 3 – Astrophyzix tracker record
- Record
- Source SCOUT, unconfirmed; Scout uncertainty panel (300 sampled orbits); derived fields (size, PHA class, ARI)
- Retrieved
Primary references: JPL Scout (cneos.jpl.nasa.gov/scout), NASA CNEOS (cneos.jpl.nasa.gov). Scout objects are unconfirmed and can be revised or removed as new observations arrive. For live CNEOS Scout and JPL Close Approach Data use the Dual-watch PHA and NEO Tracking System.