1835 Gajdariya

1835 Gajdariya
	Lightcurve-based 3D-model of Gajdariya
Discovery
Discovered by	T. Smirnova
Discovery site	Crimean Astrophysical Obs.
Discovery date	30 July 1970
Designations
MPC designation	(1835) Gajdariya
Named after	Arkady Gaidar; (Russian writer)
Alternative designations	1970 OE · 1958 BH; 1961 TJ · 1961 TQ1; 1963 DB · 1971 UJ3; 1973 EN
Minor planet category	main-belt · Koronis
Orbital characteristics
	Epoch 4 September 2017 (JD 2458000.5)
	Uncertainty parameter 0
Observation arc	59.28 yr (21,653 days)
Aphelion	3.0842 AU
Perihelion	2.5811 AU
Semi-major axis	2.8326 AU
Eccentricity	0.0888
Orbital period (sidereal)	4.77 yr (1,741 days)
Mean anomaly	258.14°
Mean motion	0° 12m 24.12s / day
Inclination	0.9857°
Longitude of ascending node	296.26°
Argument of perihelion	80.748°
Physical characteristics
Dimensions	12.40 km (calculated); 12.704±0.035; 12.843±0.142 km; 13.30±1.04 km
Synodic rotation period	6.3276±0.0035 h; 6.33768 h
Geometric albedo	0.209±0.040; 0.24 (assumed); 0.2703±0.0433
Spectral type	S
Absolute magnitude (H)	11.5 · 11.7 · 11.70±0.28

1835 Gajdariya, provisional designation 1970 OE, is a stony Koronian asteroid from the outer region of the asteroid belt, approximately 12.5 kilometers in diameter.

It was discovered on 30 July 1970, by Russian astronomer Tamara Smirnova at Crimean Astrophysical Observatory in Nauchnyj, on the Crimean peninsula.^[10] It was named after Russian writer Arkady Gaidar.^[2]

Characteristics

The S-type asteroid is a member of the Koronis family, which is named after 158 Koronis and consists of about 300 known bodies with nearly ecliptical orbits. It orbits the Sun in the outer main-belt at a distance of 2.6–3.1 AU once every 4 years and 9 months (1,741 days). Its orbit has an eccentricity of 0.09 and an inclination of 1° with respect to the ecliptic.^[1] Its spectra is that of an S-type asteroid with a geometric albedo of about 0.24. It has a rotation period of 6.33 hours.^[7]^[8]

Naming

It was named in honor of Soviet–Russian writer and children's author Arkady Gaidar (1904–1941), who joined the partisans and became a machine gunner during the Nazi invasion of the Soviet Union.^[2] Gaidar was killed in combat in October 1941. The official naming citation was published by the Minor Planet Center on 1 June 1975 (M.P.C. 3825).^[11]

References

^ ^a ^b ^c ^d "JPL Small-Body Database Browser: 1835 Gajdariya (1970 OE)" (2017-05-02 last obs.). Jet Propulsion Laboratory. Retrieved 8 June 2017.
^ ^a ^b ^c Schmadel, Lutz D. (2007). "(1835) Gajdariya". Dictionary of Minor Planet Names – (1835) Gajdariya. Springer Berlin Heidelberg. p. 147. doi:10.1007/978-3-540-29925-7_1836. ISBN 978-3-540-00238-3.
^ ^a ^b ^c ^d ^e "LCDB Data for (1835) Gajdariya". Asteroid Lightcurve Database (LCDB). Retrieved 14 December 2016.
^ ^a ^b Masiero, Joseph R.; Grav, T.; Mainzer, A. K.; Nugent, C. R.; Bauer, J. M.; Stevenson, R.; et al. (August 2014). "Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos". The Astrophysical Journal. 791 (2): 11. arXiv:1406.6645. Bibcode:2014ApJ...791..121M. doi:10.1088/0004-637X/791/2/121. Retrieved 14 December 2016.
^ ^a ^b ^c Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal. 741 (2): 25. arXiv:1109.6407. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90.
^ ^a ^b ^c Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; et al. (November 2012). "Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids". The Astrophysical Journal Letters. 759 (1): 5. arXiv:1209.5794. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. Retrieved 14 December 2016.
^ ^a ^b Molnar, Lawrence A.; Haegert, Melissa, J.; Beaumont, Christopher N.; Block, Marjorie J.; Brom, Timothy H.; Butler, Andrew R.; et al. (March 2008). "Lightcurve Analysis of a Magnitude Limited Asteroid Sample". The Minor Planet Bulletin. 35 (1): 9–12. Bibcode:2008MPBu...35....9M. ISSN 1052-8091. Retrieved 14 December 2016.{{cite journal}}: CS1 maint: multiple names: authors list (link)
^ ^a ^b Hanus, J.; Broz, M.; Durech, J.; Warner, B. D.; Brinsfield, J.; Durkee, R.; et al. (November 2013). "An anisotropic distribution of spin vectors in asteroid families". Astronomy and Astrophysics. 559: 19. arXiv:1309.4296. Bibcode:2013A&A...559A.134H. doi:10.1051/0004-6361/201321993. Retrieved 14 December 2016.
^ Veres, Peter; Jedicke, Robert; Fitzsimmons, Alan; Denneau, Larry; Granvik, Mikael; Bolin, Bryce; et al. (November 2015). "Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results". Icarus. 261: 34–47. arXiv:1506.00762. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved 14 December 2016.
^ "1835 Gajdariya (1970 OE)". Minor Planet Center. Retrieved 14 December 2016.
^ Schmadel, Lutz D. (2009). "Appendix – Publication Dates of the MPCs". Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008). Springer Berlin Heidelberg. p. 221. doi:10.1007/978-3-642-01965-4. ISBN 978-3-642-01964-7.

External links

Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
1835 Gajdariya at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
1835 Gajdariya at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters

[jpldata-1] "JPL Small-Body Database Browser: 1835 Gajdariya (1970 OE)" (2017-05-02 last obs.). Jet Propulsion Laboratory. Retrieved 8 June 2017.

[springer-2] Schmadel, Lutz D. (2007). "(1835) Gajdariya". Dictionary of Minor Planet Names – (1835) Gajdariya. Springer Berlin Heidelberg. p. 147. doi:10.1007/978-3-540-29925-7_1836. ISBN 978-3-540-00238-3.

[lcdb-3] "LCDB Data for (1835) Gajdariya". Asteroid Lightcurve Database (LCDB). Retrieved 14 December 2016.

[Masiero-2014-4] Masiero, Joseph R.; Grav, T.; Mainzer, A. K.; Nugent, C. R.; Bauer, J. M.; Stevenson, R.; et al. (August 2014). "Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos". The Astrophysical Journal. 791 (2): 11. arXiv:1406.6645. Bibcode:2014ApJ...791..121M. doi:10.1088/0004-637X/791/2/121. Retrieved 14 December 2016.

[WISE-5] Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal. 741 (2): 25. arXiv:1109.6407. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90.

[Masiero-2012-6] Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; et al. (November 2012). "Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids". The Astrophysical Journal Letters. 759 (1): 5. arXiv:1209.5794. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. Retrieved 14 December 2016.

[Molnar-2008a-7] Molnar, Lawrence A.; Haegert, Melissa, J.; Beaumont, Christopher N.; Block, Marjorie J.; Brom, Timothy H.; Butler, Andrew R.; et al. (March 2008). "Lightcurve Analysis of a Magnitude Limited Asteroid Sample". The Minor Planet Bulletin. 35 (1): 9–12. Bibcode:2008MPBu...35....9M. ISSN 1052-8091. Retrieved 14 December 2016.{{cite journal}}: CS1 maint: multiple names: authors list (link)

[Hanus-2013c-8] Hanus, J.; Broz, M.; Durech, J.; Warner, B. D.; Brinsfield, J.; Durkee, R.; et al. (November 2013). "An anisotropic distribution of spin vectors in asteroid families". Astronomy and Astrophysics. 559: 19. arXiv:1309.4296. Bibcode:2013A&A...559A.134H. doi:10.1051/0004-6361/201321993. Retrieved 14 December 2016.

[Veres-2015-9] Veres, Peter; Jedicke, Robert; Fitzsimmons, Alan; Denneau, Larry; Granvik, Mikael; Bolin, Bryce; et al. (November 2015). "Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results". Icarus. 261: 34–47. arXiv:1506.00762. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved 14 December 2016.

[MPC-Gajdariya-10] "1835 Gajdariya (1970 OE)". Minor Planet Center. Retrieved 14 December 2016.

[DoMP-Circular-dates-11] Schmadel, Lutz D. (2009). "Appendix – Publication Dates of the MPCs". Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008). Springer Berlin Heidelberg. p. 221. doi:10.1007/978-3-642-01965-4. ISBN 978-3-642-01964-7.

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1835 Gajdariya

Characteristics

Naming

References

External links

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