Near-Earth Object (NEO) and PHA Close-Approach Report: October 10, 2026
Catalogued Earth close-approaches across a 7-day window from the NASA NeoWs feed (JPL small-body solutions; cached at source). This bulletin is a catalogue report, not a live CNEOS CAD/Scout stream. Live Multi-watch CAD/Scout/Sentry tracker.
On October 10, 2026 (UTC), screening of the NASA NeoWs catalogue resolves 45 near-Earth object close approaches across the report window. The single closest encounter is 2019 SD8, passing at approximately 18.63 lunar distances (7,162,671 km) with a relative velocity near 9.5 km/s. No listed object is on an impacting trajectory.
Close Approaches On Report Date
| Object | Epoch (UTC) | Dist (LD) | Dist (km) | v_rel (km/s) | Diameter (km) | Status |
|---|---|---|---|---|---|---|
| 2020 DT2 | 53.07 | 20,410,341 | 16.3 | 0.012 | Routine | |
| 2019 SD8 | 18.63 | 7,162,671 | 9.5 | 0.013 | Routine | |
| 2020 BN10 | 58.12 | 22,350,835 | 18.3 | 0.252 | PHA | |
| 2013 RX80 | 93.90 | 36,110,935 | 25.8 | 0.998 | Routine | |
| 2017 SV14 | 111.20 | 42,766,098 | 10.1 | 0.089 | Routine | |
| 2016 UW80 | 127.22 | 48,924,375 | 7.7 | 0.066 | Routine |
Lead Object Orbital Dossier
2019 SD8
Heliocentric osculating elements from NeoWs, epoch JD 2461000.5. Dynamical class: APO (near-Earth asteroid orbits which cross the Earth’s orbit, similar to that of 1862 Apollo).
JPL Small-Body Database record: ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?sstr=3872632
7-Day Forward Outlook – Scroll Left/Right
| Object | Epoch (UTC) | Dist (LD) | Dist (km) | v_rel (km/s) | Diameter (km) | Status |
|---|---|---|---|---|---|---|
| 2009 SB170 | 164.66 | 63,325,076 | 40.5 | 0.272 | Routine | |
| 2015 TM143 | 191.68 | 73,712,838 | 21.9 | 0.078 | Routine | |
| 2017 VB13 | 180.27 | 69,327,480 | 15.4 | 0.032 | Routine | |
| 2015 TW237 | 174.69 | 67,180,123 | 5.0 | 0.091 | Routine | |
| 2021 JE4 | 174.04 | 66,930,582 | 16.7 | 0.354 | Routine | |
| 2011 PU1 | 167.98 | 64,600,557 | 6.2 | 0.030 | Routine | |
| 2017 HE49 | 55.34 | 21,280,369 | 7.0 | 0.072 | Routine | |
| 164207 Cardea (2004 GU9) | 77.16 | 29,671,918 | 7.3 | 0.230 | PHA | |
| 2015 XK55 | 134.56 | 51,746,936 | 15.4 | 0.050 | Routine | |
| 2017 RO17 | 78.22 | 30,080,211 | 8.4 | 0.024 | Routine | |
| 339714 (2005 ST1) | 52.88 | 20,334,583 | 14.3 | 0.338 | Routine | |
| 2012 WH1 | 39.91 | 15,346,503 | 7.0 | 0.057 | Routine | |
| 2015 TG24 | 73.28 | 28,182,879 | 16.0 | 0.018 | Routine | |
| 2016 TG56 | 182.13 | 70,040,598 | 15.4 | 0.079 | Routine | |
| 2011 UH20 | 107.64 | 41,396,652 | 24.3 | 0.239 | PHA | |
| 2010 DO | 59.92 | 23,042,474 | 25.3 | 0.185 | PHA | |
| 2016 UZ41 | 77.48 | 29,796,273 | 15.3 | 0.343 | Routine | |
| 2018 EH4 | 21.91 | 8,427,648 | 13.2 | 0.184 | PHA | |
| 678976 (2018 EH4) | 21.91 | 8,427,723 | 13.2 | 0.183 | PHA | |
| 2019 SB1 | 97.75 | 37,592,118 | 22.5 | 0.405 | Routine |
The window contains 45 catalogued Earth close-approaches (6 on the report date, 39 in the forward outlook). The nearest listed geometry is 2019 SD8 at 18.63 LD (non-PHA), relative velocity 9.5 km/s. 12 objects in the window are flagged potentially hazardous (size and MOID criteria, not this week’s miss distance). No listed object is on an impacting trajectory in this catalogue.
Methodology - Click to View
Approach
- Data basis
- Close-approach geometry from NASA NeoWs, fed by the JPL Solar System Dynamics small-body solutions that also underpin CNEOS
- Trajectory integration
- None; NASA solutions are consumed directly to preserve the authoritative state
- Analysis block
- Deterministic summary of the same records, computed from the Float64 state after validation in the same pipeline tick as render; never stored separately from the feed, so it cannot disagree with the tables
Source choice
- Why NeoWs
- JPL CNEOS CAD and SBDB (ssd-api.jpl.nasa.gov) cannot be called directly from a browser (NASA CORS), so this bulletin uses NeoWs (api.nasa.gov): the same JPL small-body solutions, CORS-enabled
- Live data
- Live CAD/Scout/Sentry is a separate console: Multi-watch tracker
Units and time
- Time scale
- NeoWs reports close-approach epochs on the UTC civil scale. For reference, TT − UTC = 69.184 s for 2026 (37 leap seconds plus the 32.184 s TAI-to-TT constant)
- Distance units
- Miss distance from NeoWs in astronomical units and lunar distances (1 au = 149,597,871 km, 1 LD = 384,400 km, IAU 2012)
- Size estimate
- NeoWs estimated_diameter bracket, derived from absolute magnitude H with standard albedo bounds; the geometric mean is reported
Validation
- Record checks
- 0 < dist ≤ 1 au; 0.05 ≤ v_rel ≤ 100 km/s; −5 ≤ H ≤ 40
- Diameter self-test
- D[km] = 1329 / sqrt(pv) × 10(−H/5), pv 0.25–0.05 (Bowell); H = 22 gives 0.106–0.237 km
- Result
- PASS; flagged records: 0
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)
- TT − UTC
- 69.184 s (37 leap seconds + 32.184 s), valid 2026
Data Provenance - Click to View
Report
- Module
- Astrophyzix-NEO-Daily/2.2.0
- Generated (UTC)
- Report date
- Window
- 2026-10-10 to 2026-10-17 (7 days)
- Cache state
- MISS
Analysis
- Analysis generated (UTC)
- Approaches in window
- 45 (6 on report date, 39 in outlook)
- Closest object
- 2019 SD8 at 18.63 LD
- PHA in window
- 12
- Inside 1 LD
- 0
- Notable
- 0
- Median miss
- 78.22 LD
- Anomalies
- 0
Source 1 – NASA NeoWs feed
- Endpoint
- https://api.nasa.gov/neo/rest/v1/feed?start_date=2026-10-10&end_date=2026-10-17&api_key=***
- Docs
- api.nasa.gov
- Retrieved (UTC)
Source 2 – NASA NeoWs lookup
- Endpoint
- https://api.nasa.gov/neo/rest/v1/neo/3872632?api_key=***
- Docs
- api.nasa.gov
- Retrieved (UTC)
Pipeline trace
- Timings (ms)
- INIT 1128 → CACHE_LOOKUP 1128 → FETCH_FEED 1364 → FETCH_ENRICH 2754 → PARSE 3222 → COMPUTE 3227 → VALIDATE 3227 → ANALYSE 3227 → RENDER 3229
Primary references: NASA NeoWs / api.nasa.gov (api.nasa.gov), NASA CNEOS (cneos.jpl.nasa.gov). Object hazard status should be verified against the CNEOS Sentry table. For live CNEOS Scout and JPL Close Approach Data use the Dual-watch PHA and NEO Tracking System.
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