(38128) 1999 JN45

asteroid

Place asteroid Q7471651

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(38128) 1999 JN45

Summary

(38128) 1999 JN45 is an asteroid^[1].

Key Facts

(38128) 1999 JN45 is credited with the discovery of Lincoln Near-Earth Asteroid Research^[2].
(38128) 1999 JN45's instance of is recorded as asteroid^[3].
(38128) 1999 JN45's site of astronomical discovery is recorded as Experimental Test Site^[4].
(38128) 1999 JN45's follows is recorded as (38127) 1999 JL45^[5].
(38128) 1999 JN45's followed by is recorded as (38129) 1999 JV45^[6].
(38128) 1999 JN45's minor planet group is recorded as asteroid belt^[7].
(38128) 1999 JN45's parent astronomical body is recorded as Sun^[8].
(38128) 1999 JN45's provisional designation is recorded as 1999 JN45^[9].
(38128) 1999 JN45's provisional designation is recorded as 2000 US41^[10].
(38128) 1999 JN45's time of discovery or invention is recorded as +1999-05-10T00:00:00Z^[11].
(38128) 1999 JN45's JPL Small-Body Database SPK-ID is recorded as 20038128^[12].
(38128) 1999 JN45's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.14'}^[13].
(38128) 1999 JN45's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.1384415'}^[14].
(38128) 1999 JN45's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.1384213096504482'}^[15].
(38128) 1999 JN45's absolute magnitude is recorded as {'unit': '1', 'amount': '+15.5'}^[16].
(38128) 1999 JN45's absolute magnitude is recorded as {'unit': '1', 'amount': '+15.61'}^[17].
(38128) 1999 JN45's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+5.10852'}^[18].
(38128) 1999 JN45's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+5.104739138403899'}^[19].
(38128) 1999 JN45's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q577', 'amount': '+3.37'}^[20].
(38128) 1999 JN45's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+1232.068171458315'}^[21].
(38128) 1999 JN45's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+221.71066'}^[22].
(38128) 1999 JN45's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+221.6256772819969'}^[23].
(38128) 1999 JN45's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.2494021'}^[24].
(38128) 1999 JN45's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.249179972225007'}^[25].
(38128) 1999 JN45's apoapsis is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.561'}^[26].

Body

Designation and Status

(38128) 1999 JN45's instance of is recorded as asteroid^[3].

⭐ Popularity Graph

0/100 long tail

Quick Facts

Instance of asteroid

Follows (38127) 1999 JL45

Followed by (38129) 1999 JV45

Properties

Absolute magnitude unit: 1, amount: +15.5, unit: 1, amount: +15.61

Albedo unit: 1, amount: +0.284

Apoapsis unit: www.wikidata.org, amount: +2.561, unit: www.wikidata.org, amount: +2.56051440961995

Argument of periapsis unit: www.wikidata.org, amount: +40.58354, unit: www.wikidata.org, amount: +41.21116711263915

Diameter unit: www.wikidata.org, amount: +2.171

Discoverer or inventor Lincoln Near-Earth Asteroid Research

Epoch November 21, 2025

Imported from wholeness_audit_2026-05-02

Longitude of ascending node unit: www.wikidata.org, amount: +221.71066, unit: www.wikidata.org, amount: +221.6256772819969

Mean anomaly unit: www.wikidata.org, amount: +189.15406, unit: www.wikidata.org, amount: +286.4738612905916

Minor planet group asteroid belt

Orbital eccentricity unit: 1, amount: +0.14, unit: 1, amount: +0.1384415, unit: 1, amount: +0.1384213096504482

Orbital inclination unit: www.wikidata.org, amount: +5.10852, unit: www.wikidata.org, amount: +5.104739138403899

Orbital period unit: www.wikidata.org, amount: +3.37, unit: www.wikidata.org, amount: +1232.068171458315

Parent astronomical body Sun

Periapsis unit: www.wikidata.org, amount: +1.9379915, unit: www.wikidata.org, amount: +1.937845534830062

Provisional designation 1999 JN45, 2000 US41

Semi-major axis of an orbit unit: www.wikidata.org, amount: +2.2494021, unit: www.wikidata.org, amount: +2.249179972225007

Site of astronomical discovery Experimental Test Site

Time of discovery or invention May 10, 1999

Time of periapsis unit: www.wikidata.org, amount: +2461252.1367090945

External References (4)

Google knowledge graph id /g/121p1bnc

Jpl small-body database spk-id 20038128

Minor planet center body id 38128

Wolfram language entity code Entity["MinorPlanet", "MinorPlanet38128Provisional1999JN45"]

🌐 Available in 4 languages

ar(38128) 1999 JN45 arz(38128) 1999 JN45 (كويكب) fr(38128) 1999 JN45 pt(38128) 1999 JN45

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

[3] ↑ (38128) 1999 JN45 — instance of (P31): asteroid. JPL Small-Body Database. Retrieved 2024-04-16. ssd.jpl.nasa.gov. Provenance: wikidata.org.
[2] ↑ (38128) 1999 JN45 — discoverer or inventor (P61): Lincoln Near-Earth Asteroid Research. JPL Small-Body Database. Retrieved 2024-04-16. ssd.jpl.nasa.gov. Provenance: wikidata.org.
[4] ↑ (38128) 1999 JN45 — site of astronomical discovery (P65): Experimental Test Site. JPL Small-Body Database. Retrieved 2024-05-05. ssd.jpl.nasa.gov. Provenance: wikidata.org.
[5] ↑ (38128) 1999 JN45 — follows (P155): (38127) 1999 JL45. wikidata.org.
[6] ↑ (38128) 1999 JN45 — followed by (P156): (38129) 1999 JV45. wikidata.org.
[7] ↑ (38128) 1999 JN45 — minor planet group (P196): asteroid belt. JPL Small-Body Database. Retrieved 2024-04-16. ssd.jpl.nasa.gov. Provenance: wikidata.org.
[8] ↑ (38128) 1999 JN45 — parent astronomical body (P397): Sun. wikidata.org.
[9] ↑ (38128) 1999 JN45 — provisional designation (P490): 1999 JN45. JPL Small-Body Database. Retrieved 2024-04-16. ssd.jpl.nasa.gov. Provenance: wikidata.org.
[10] ↑ (38128) 1999 JN45 — provisional designation (P490): 2000 US41. JPL Small-Body Database. Retrieved 2024-04-16. ssd.jpl.nasa.gov. Provenance: wikidata.org.
[11] ↑ (38128) 1999 JN45 — time of discovery or invention (P575): +1999-05-10T00:00:00Z. JPL Small-Body Database. Retrieved 2024-04-16. ssd.jpl.nasa.gov. Provenance: wikidata.org.
[12] ↑ (38128) 1999 JN45 — JPL Small-Body Database SPK-ID (P716): 20038128. JPL Small-Body Database. Retrieved 2024-04-16. wikidata.org.
[13] ↑ (38128) 1999 JN45 — orbital eccentricity (P1096): {'unit': '1', 'amount': '+0.14'}. wikidata.org.
[14] ↑ (38128) 1999 JN45 — orbital eccentricity (P1096): {'unit': '1', 'amount': '+0.1384415'}. minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
[15] ↑ (38128) 1999 JN45 — orbital eccentricity (P1096): {'unit': '1', 'amount': '+0.1384213096504482'}. JPL Small-Body Database. Retrieved 2026-01-09. ssd.jpl.nasa.gov. Provenance: wikidata.org.
[16] ↑ (38128) 1999 JN45 — absolute magnitude (P1457): {'unit': '1', 'amount': '+15.5'}. minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
[17] ↑ (38128) 1999 JN45 — absolute magnitude (P1457): {'unit': '1', 'amount': '+15.61'}. JPL Small-Body Database. Retrieved 2026-01-09. ssd.jpl.nasa.gov. Provenance: wikidata.org.
[18] ↑ (38128) 1999 JN45 — orbital inclination (P2045): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+5.10852'}. minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
[19] ↑ (38128) 1999 JN45 — orbital inclination (P2045): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+5.104739138403899'}. JPL Small-Body Database. Retrieved 2026-01-09. ssd.jpl.nasa.gov. Provenance: wikidata.org.
[20] ↑ (38128) 1999 JN45 — orbital period (P2146): {'unit': 'http://www.wikidata.org/entity/Q577', 'amount': '+3.37'}. minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
[21] ↑ (38128) 1999 JN45 — orbital period (P2146): {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+1232.068171458315'}. JPL Small-Body Database. Retrieved 2026-01-09. ssd.jpl.nasa.gov. Provenance: wikidata.org.
[22] ↑ (38128) 1999 JN45 — longitude of ascending node (P2213): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+221.71066'}. minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
[23] ↑ (38128) 1999 JN45 — longitude of ascending node (P2213): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+221.6256772819969'}. JPL Small-Body Database. Retrieved 2026-01-09. ssd.jpl.nasa.gov. Provenance: wikidata.org.
[24] ↑ (38128) 1999 JN45 — semi-major axis of an orbit (P2233): {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.2494021'}. minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
[25] ↑ (38128) 1999 JN45 — semi-major axis of an orbit (P2233): {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.249179972225007'}. JPL Small-Body Database. Retrieved 2026-01-09. ssd.jpl.nasa.gov. Provenance: wikidata.org.
[26] ↑ (38128) 1999 JN45 — apoapsis (P2243): {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+2.561'}. minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.

Class ancestry

[1] ↑ (38128) 1999 JN45 is an instance of asteroid (Q3863) [P31, primary]. Wikidata. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA

4ort.xyz Knowledge Graph. (2026). (38128) 1999 JN45. Retrieved May 3, 2026, from https://4ort.xyz/entity/-38128-1999-jn45

MLA “(38128) 1999 JN45.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/-38128-1999-jn45.

BibTeX

@misc{4ortxyz_-38128-1999-jn45_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(38128) 1999 JN45}}, year = {2026}, url = {https://4ort.xyz/entity/-38128-1999-jn45}, note = {Accessed: 2026-05-03}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (38128) 1999 JN45 — https://4ort.xyz/entity/-38128-1999-jn45 (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/-38128-1999-jn45 · Last refreshed: May 3, 2026