(19690) 1999 RD212

asteroid

Place asteroid Q22970087

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(19690) 1999 RD212

Summary

(19690) 1999 RD212 is an asteroid^[1].

Key Facts

(19690) 1999 RD212 is credited with the discovery of Lincoln Near-Earth Asteroid Research^[2].
(19690) 1999 RD212's instance of is recorded as asteroid^[3].
(19690) 1999 RD212's site of astronomical discovery is recorded as Magdalena Ridge Observatory^[4].
(19690) 1999 RD212's follows is recorded as (19689) 1999 RX205^[5].
(19690) 1999 RD212's followed by is recorded as Q3597897^[6].
(19690) 1999 RD212's minor planet group is recorded as asteroid belt^[7].
(19690) 1999 RD212's parent astronomical body is recorded as Sun^[8].
(19690) 1999 RD212's provisional designation is recorded as 1999 RD212^[9].
(19690) 1999 RD212's provisional designation is recorded as 1998 MY31^[10].
(19690) 1999 RD212's time of discovery or invention is recorded as +1999-09-08T00:00:00Z^[11].
(19690) 1999 RD212's JPL Small-Body Database SPK-ID is recorded as 20019690^[12].
(19690) 1999 RD212's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.17'}^[13].
(19690) 1999 RD212's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.1749426'}^[14].
(19690) 1999 RD212's orbital eccentricity is recorded as {'unit': '1', 'amount': '+0.1777655614111723'}^[15].
(19690) 1999 RD212's absolute magnitude is recorded as {'unit': '1', 'amount': '+12.8'}^[16].
(19690) 1999 RD212's absolute magnitude is recorded as {'unit': '1', 'amount': '+12.93'}^[17].
(19690) 1999 RD212's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+9.75078'}^[18].
(19690) 1999 RD212's orbital inclination is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+9.745954711774992'}^[19].
(19690) 1999 RD212's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q577', 'amount': '+5.65'}^[20].
(19690) 1999 RD212's orbital period is recorded as {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+2060.885352817141'}^[21].
(19690) 1999 RD212's rotation period is recorded as {'unit': 'http://www.wikidata.org/entity/Q25235', 'amount': '+25.4988'}^[22].
(19690) 1999 RD212's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+325.02526'}^[23].
(19690) 1999 RD212's longitude of ascending node is recorded as {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+324.935102706927'}^[24].
(19690) 1999 RD212's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+3.1732267'}^[25].
(19690) 1999 RD212's semi-major axis of an orbit is recorded as {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+3.169350498671859'}^[26].

Body

Designation and Status

(19690) 1999 RD212's instance of is recorded as asteroid^[3].

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Quick Facts

Instance of asteroid

Follows (19689) 1999 RX205

Followed by 19691 Iwate

Properties

Absolute magnitude unit: 1, amount: +12.8, unit: 1, amount: +12.93

Albedo unit: 1, amount: +0.051

Apoapsis unit: www.wikidata.org, amount: +3.728, unit: www.wikidata.org, amount: +3.73275186937704

Argument of periapsis unit: www.wikidata.org, amount: +316.92098, unit: www.wikidata.org, amount: +315.808850644249

Diameter unit: www.wikidata.org, amount: +16.723

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: +325.02526, unit: www.wikidata.org, amount: +324.935102706927

Mean anomaly unit: www.wikidata.org, amount: +244.61626, unit: www.wikidata.org, amount: +304.6138276614578

Minor planet group asteroid belt

Orbital eccentricity unit: 1, amount: +0.17, unit: 1, amount: +0.1749426, unit: 1, amount: +0.1777655614111723

Orbital inclination unit: www.wikidata.org, amount: +9.75078, unit: www.wikidata.org, amount: +9.745954711774992

Orbital period unit: www.wikidata.org, amount: +5.65, unit: www.wikidata.org, amount: +2060.885352817141

Parent astronomical body Sun

Periapsis unit: www.wikidata.org, amount: +2.6180941, unit: www.wikidata.org, amount: +2.605949127966677

Provisional designation 1999 RD212, 1998 MY31

Rotation period unit: www.wikidata.org, amount: +25.4988

Semi-major axis of an orbit unit: www.wikidata.org, amount: +3.1732267, unit: www.wikidata.org, amount: +3.169350498671859

Site of astronomical discovery Magdalena Ridge Observatory

Time of discovery or invention September 8, 1999

Time of periapsis unit: www.wikidata.org, amount: +2461317.568198114

External References (4)

Google knowledge graph id /g/11g2368_23

Jpl small-body database spk-id 20019690

Minor planet center body id 19690

Wolfram language entity code Entity["MinorPlanet", "MinorPlanet19690Provisional1999RD212"]

🌐 Available in 4 languages

ce(19690) 1999 RD212 eo(19690) 1999 RD212 fr(19690) 1999 RD212 tt(19690) 1999 RD212

References

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

Direct Wikidata claims

[3] ↑ (19690) 1999 RD212 — instance of (P31): asteroid. JPL Small-Body Database. Retrieved 2023-12-18. ssd.jpl.nasa.gov. Provenance: wikidata.org.
[2] ↑ (19690) 1999 RD212 — discoverer or inventor (P61): Lincoln Near-Earth Asteroid Research. JPL Small-Body Database. Retrieved 2023-12-18. ssd.jpl.nasa.gov. Provenance: wikidata.org.
[4] ↑ (19690) 1999 RD212 — site of astronomical discovery (P65): Magdalena Ridge Observatory. wikidata.org.
[5] ↑ (19690) 1999 RD212 — follows (P155): (19689) 1999 RX205. wikidata.org.
[6] ↑ (19690) 1999 RD212 — followed by (P156): Q3597897. wikidata.org.
[7] ↑ (19690) 1999 RD212 — minor planet group (P196): asteroid belt. JPL Small-Body Database. Retrieved 2023-12-18. ssd.jpl.nasa.gov. Provenance: wikidata.org.
[8] ↑ (19690) 1999 RD212 — parent astronomical body (P397): Sun. wikidata.org.
[9] ↑ (19690) 1999 RD212 — provisional designation (P490): 1999 RD212. JPL Small-Body Database. Retrieved 2023-12-18. ssd.jpl.nasa.gov. Provenance: wikidata.org.
[10] ↑ (19690) 1999 RD212 — provisional designation (P490): 1998 MY31. JPL Small-Body Database. Retrieved 2023-12-18. ssd.jpl.nasa.gov. Provenance: wikidata.org.
[11] ↑ (19690) 1999 RD212 — time of discovery or invention (P575): +1999-09-08T00:00:00Z. JPL Small-Body Database. Retrieved 2023-12-18. ssd.jpl.nasa.gov. Provenance: wikidata.org.
[12] ↑ (19690) 1999 RD212 — JPL Small-Body Database SPK-ID (P716): 20019690. JPL Small-Body Database. Retrieved 2023-12-18. wikidata.org.
[13] ↑ (19690) 1999 RD212 — orbital eccentricity (P1096): {'unit': '1', 'amount': '+0.17'}. wikidata.org.
[14] ↑ (19690) 1999 RD212 — orbital eccentricity (P1096): {'unit': '1', 'amount': '+0.1749426'}. minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
[15] ↑ (19690) 1999 RD212 — orbital eccentricity (P1096): {'unit': '1', 'amount': '+0.1777655614111723'}. JPL Small-Body Database. Retrieved 2025-12-15. ssd.jpl.nasa.gov. Provenance: wikidata.org.
[16] ↑ (19690) 1999 RD212 — absolute magnitude (P1457): {'unit': '1', 'amount': '+12.8'}. minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
[17] ↑ (19690) 1999 RD212 — absolute magnitude (P1457): {'unit': '1', 'amount': '+12.93'}. JPL Small-Body Database. Retrieved 2025-12-15. ssd.jpl.nasa.gov. Provenance: wikidata.org.
[18] ↑ (19690) 1999 RD212 — orbital inclination (P2045): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+9.75078'}. minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
[19] ↑ (19690) 1999 RD212 — orbital inclination (P2045): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+9.745954711774992'}. JPL Small-Body Database. Retrieved 2025-12-15. ssd.jpl.nasa.gov. Provenance: wikidata.org.
[20] ↑ (19690) 1999 RD212 — orbital period (P2146): {'unit': 'http://www.wikidata.org/entity/Q577', 'amount': '+5.65'}. minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
[21] ↑ (19690) 1999 RD212 — orbital period (P2146): {'unit': 'http://www.wikidata.org/entity/Q573', 'amount': '+2060.885352817141'}. JPL Small-Body Database. Retrieved 2025-12-15. ssd.jpl.nasa.gov. Provenance: wikidata.org.
[22] ↑ (19690) 1999 RD212 — rotation period (P2147): {'unit': 'http://www.wikidata.org/entity/Q25235', 'amount': '+25.4988'}. JPL Small-Body Database. Retrieved 2023-12-18. ssd.jpl.nasa.gov. Provenance: wikidata.org.
[23] ↑ (19690) 1999 RD212 — longitude of ascending node (P2213): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+325.02526'}. minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
[24] ↑ (19690) 1999 RD212 — longitude of ascending node (P2213): {'unit': 'http://www.wikidata.org/entity/Q28390', 'amount': '+324.935102706927'}. JPL Small-Body Database. Retrieved 2025-12-15. ssd.jpl.nasa.gov. Provenance: wikidata.org.
[25] ↑ (19690) 1999 RD212 — semi-major axis of an orbit (P2233): {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+3.1732267'}. minorplanetcenter.net. minorplanetcenter.net. Provenance: wikidata.org.
[26] ↑ (19690) 1999 RD212 — semi-major axis of an orbit (P2233): {'unit': 'http://www.wikidata.org/entity/Q1811', 'amount': '+3.169350498671859'}. JPL Small-Body Database. Retrieved 2025-12-15. ssd.jpl.nasa.gov. Provenance: wikidata.org.

Class ancestry

[1] ↑ (19690) 1999 RD212 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). (19690) 1999 RD212. Retrieved May 3, 2026, from https://4ort.xyz/entity/-19690-1999-rd212

MLA “(19690) 1999 RD212.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/-19690-1999-rd212.

BibTeX

@misc{4ortxyz_-19690-1999-rd212_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{(19690) 1999 RD212}}, year = {2026}, url = {https://4ort.xyz/entity/-19690-1999-rd212}, note = {Accessed: 2026-05-03}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): (19690) 1999 RD212 — https://4ort.xyz/entity/-19690-1999-rd212 (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/-19690-1999-rd212 · Last refreshed: May 3, 2026