1804 Chebotarev

1804 Chebotarev
	Shape model of Chebotarev from its lightcurve
Discovery
Discovered by	T. Smirnova
Discovery site	Crimean Astrophysical Obs.
Discovery date	6 April 1967
Designations
Named after	G. A. Chebotarev (astronomer)
Alternative designations	1967 GG · 1938 QL; 1942 RL · 1968 QK
Minor planet category	main-belt · (inner)
Orbital characteristics
	Epoch 4 September 2017 (JD 2458000.5)
	Uncertainty parameter 0
Observation arc	78.05 yr (28,506 days)
Aphelion	2.4628 AU
Perihelion	2.3584 AU
Semi-major axis	2.4106 AU
Eccentricity	0.0217
Orbital period (sidereal)	3.74 yr (1,367 days)
Mean anomaly	96.780°
Mean motion	0° 15m 47.88s / day
Inclination	3.6316°
Longitude of ascending node	325.72°
Argument of perihelion	305.47°
Physical characteristics
Dimensions	9.15±1.12 km; 10.79 km (calculated)
Synodic rotation period	4.026±0.002 h
Geometric albedo	0.20 (assumed); 0.501±0.289
Spectral type	S
Absolute magnitude (H)	11.56 · 12.2 · 12.25±0.45

1804 Chebotarev (prov. designation: 1967 GG) is a stony background asteroid from the inner regions of the asteroid belt, approximately 10 kilometers in diameter. It was discovered on 6 April 1967, by Russian astronomer Tamara Smirnova at the Crimean Astrophysical Observatory in Nauchnyj on the Crimean peninsula. The asteroid was named after Soviet astronomer Gleb Chebotaryov [ru].

Orbit and classification

The stony S-type asteroid orbits the Sun in the inner main-belt at a distance of 2.4–2.5 AU once every 3 years and 9 months (1,367 days). Its orbit has an eccentricity of 0.02 and an inclination of 4° with respect to the ecliptic. Chebotarev was first identified as 1938 QL at Yerkes Observatory in 1938, extending the body's observation arc by 29 years prior to its official discovery observation.

Physical characteristics

Rotation period

In February 2004, a rotational lightcurve of Chebotarev was obtained from photometric observations by French amateur astronomer Laurent Bernasconi. It gave a well-defined rotation period of 4.026 hours with a brightness amplitude of 0.41 magnitude (U=3).

Diameter and albedo

According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Chebotarev measures 9.15 kilometers in diameter, and its surface has a high albedo of 0.501, while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 10.79 kilometers with an absolute magnitude of 12.2.

Naming

This minor planet was named in honor of G. A. Chebotarev (1913–1975), who was a professor and the director of the Institute of Theoretical Astronomy [ru] as well as president of IAU's Commission 20, (Positions & Motions of Minor Planets, Comets & Satellites). He is known for his work on celestial mechanics of asteroids, comets and satellites. The official naming citation was published by the Minor Planet Center on 1 January 1974 (M.P.C. 3569).

References

1 2 3 4 "JPL Small-Body Database Browser: 1804 Chebotarev (1967 GG)" (2016-09-14 last obs.). Jet Propulsion Laboratory. Retrieved 8 June 2017.
1 2 3 Schmadel, Lutz D. (2007). "(1804) Chebotarev". Dictionary of Minor Planet Names – (1804) Chebotarev. Springer Berlin Heidelberg. pp. 144–145. doi:10.1007/978-3-540-29925-7_1805. ISBN 978-3-540-00238-3.
1 2 3 4 5 6 "MinorPlanet.info: One Asteroid Information". Asteroid Lightcurve Database (LCDB). Search using Number = "1804"
1 2 3 4 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 16 December 2016.
1 2 Behrend, Raoul. "Asteroids and comets rotation curves – (1804) Chebotarev". Geneva Observatory. Archived from the original on 1 April 2019. Retrieved 16 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 16 December 2016.
1 2 "1804 Chebotarev (1967 GG)". Minor Planet Center. Retrieved 16 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 Archived 29 July 2016 at the Wayback Machine – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
1804 Chebotarev at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
1804 Chebotarev at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters

[jpldata-1] 1 2 3 4 "JPL Small-Body Database Browser: 1804 Chebotarev (1967 GG)" (2016-09-14 last obs.). Jet Propulsion Laboratory. Retrieved 8 June 2017.

[springer-2] 1 2 3 Schmadel, Lutz D. (2007). "(1804) Chebotarev". Dictionary of Minor Planet Names – (1804) Chebotarev. Springer Berlin Heidelberg. pp. 144–145. doi:10.1007/978-3-540-29925-7_1805. ISBN 978-3-540-00238-3.

[lcdb-3] 1 2 3 4 5 6 "MinorPlanet.info: One Asteroid Information". Asteroid Lightcurve Database (LCDB). Search using Number = "1804"

[Masiero-2012-4] 1 2 3 4 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 16 December 2016.

[geneva-obs-5] 1 2 Behrend, Raoul. "Asteroids and comets rotation curves – (1804) Chebotarev". Geneva Observatory. Archived from the original on 1 April 2019. Retrieved 16 December 2016.

[Veres-2015-6] 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 16 December 2016.

[MPC-Chebotarev-7] 1 2 "1804 Chebotarev (1967 GG)". Minor Planet Center. Retrieved 16 December 2016.

[DoMP-Circular-dates-8] 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.