3687 Dzus

3687 Dzus
Discovery
Discovered by	A. Kopff
Discovery site	Heidelberg Obs.
Discovery date	7 October 1908
Designations
MPC designation	(3687) Dzus
Named after	Paul K. Dzus; (MPC volunteer)
Alternative designations	A908 TC · 1952 HM3; 1970 GD2 · 1980 TO8; 1980 TX · 1984 NC
Minor planet category	main-belt · (middle)
Orbital characteristics
	Epoch 4 September 2017 (JD 2458000.5)
	Uncertainty parameter 0
Observation arc	108.33 yr (39,567 days)
Aphelion	3.2735 AU
Perihelion	2.1814 AU
Semi-major axis	2.7275 AU
Eccentricity	0.2002
Orbital period (sidereal)	4.50 yr (1,645 days)
Mean anomaly	84.307°
Mean motion	0° 13m 7.68s / day
Inclination	15.798°
Longitude of ascending node	224.89°
Argument of perihelion	113.79°
Physical characteristics
Dimensions	28.61±2.2 km; 30.932±0.250 km; 32.36±0.40 km; 34.481±0.343 km
Synodic rotation period	7.44±0.01 h
Geometric albedo	0.0373±0.0070; 0.043±0.001; 0.046±0.005; 0.0542±0.009
Spectral type	SMASS = Ch · C
Absolute magnitude (H)	11.4 · 11.5 · 11.57±0.19

3687 Dzus, provisional designation A908 TC, is a carbonaceous asteroid from the central region of the asteroid belt, approximately 31 kilometers in diameter. It was discovered by German astronomer August Kopff at Heidelberg-Königstuhl State Observatory on 7 October 1908.^[10]

Orbit and classification

Dzus orbits the Sun in the central main-belt at a distance of 2.2–3.3 AU once every 4 years and 6 months (1,645 days). Its orbit has an eccentricity of 0.20 and an inclination of 16° with respect to the ecliptic.^[1] As no precoveries were taken, the asteroid's observation arc begins with its discovery observation in 1908.^[10]

Physical characteristics

The C-type asteroid is characterized as a Ch subtype in the SMASS classification.^[1]

Diameter and albedo

According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Dzus measures between 28.6 and 34.5 kilometers in diameter and its surface has an albedo between 0.038 and 0.054.^[3]^[4]^[5]^[6] The Collaborative Asteroid Lightcurve Link agrees with the results obtained by IRAS; that is an albedo of 0.038 and a diameter of 28.6 kilometers, based on an absolute magnitude of 11.5.^[8]

Rotation period

A fragmentary lightcurve of Dzus was obtained from photometric observations made by Robert Stephens at the Santana Observatory (646) in Rancho Cucamonga, California, during April to June 2002. It showed a rotation period of 7.44±0.01 hours with a brightness variation of 0.25±0.04 in magnitude during each rotation (U=1).^[7]

Naming

This minor planet was named by Brian Geoffrey Marsden, long-time director of the Minor Planet Center (MPC), in honor of Paul K. Dzus (b. 1969) in appreciation of his helpful assistance since October 1987, much of the time as a volunteer.^[2] The official naming citation was published by the MPC on 23 December 1988 (M.P.C. 14029).^[11]

References

^ ^a ^b ^c ^d ^e ^f "JPL Small-Body Database Browser: 3687 Dzus (A908 TC)" (2017-02-04 last obs.). Jet Propulsion Laboratory. Retrieved 19 June 2017.
^ ^a ^b Schmadel, Lutz D. (2007). "(3687) Dzus". Dictionary of Minor Planet Names – (3687) Dzus. Springer Berlin Heidelberg. p. 310. doi:10.1007/978-3-540-29925-7_3685. ISBN 978-3-540-00238-3.
^ ^a ^b ^c ^d Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System: IRAS-A-FPA-3-RDR-IMPS-V6.0. Bibcode:2004PDSS...12.....T. Retrieved 22 October 2019.
^ ^a ^b ^c 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 September 2016.
^ ^a ^b ^c ^d Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey". Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. (online, AcuA catalog p. 153)
^ ^a ^b ^c ^d 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 Stephens, R. D. (December 2002), "Photometry of 769 Tatjana, 818 Kapteyna, 1922 Zulu, and 3687 Dzus", The Minor Planet Bulletin, 29: 72, Bibcode:2002MPBu...29...72S
^ ^a ^b ^c "LCDB Data for (3687) Dzus". Asteroid Lightcurve Database (LCDB). Retrieved 30 October 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 30 October 2016.
^ ^a ^b "3687 Dzus (A908 TC)". Minor Planet Center. Retrieved 30 October 2016.
^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 30 October 2016.

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
3687 Dzus at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
3687 Dzus at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters

[jpldata-1] ^ ^a ^b ^c ^d ^e ^f "JPL Small-Body Database Browser: 3687 Dzus (A908 TC)" (2017-02-04 last obs.). Jet Propulsion Laboratory. Retrieved 19 June 2017.

[springer-2] Schmadel, Lutz D. (2007). "(3687) Dzus". Dictionary of Minor Planet Names – (3687) Dzus. Springer Berlin Heidelberg. p. 310. doi:10.1007/978-3-540-29925-7_3685. ISBN 978-3-540-00238-3.

[SIMPS-3] Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System: IRAS-A-FPA-3-RDR-IMPS-V6.0. Bibcode:2004PDSS...12.....T. Retrieved 22 October 2019.

[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 September 2016.

[AKARI-5] Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey". Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. (online, AcuA catalog p. 153)

[WISE-6] 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.

[Stephens-2002e-7] Stephens, R. D. (December 2002), "Photometry of 769 Tatjana, 818 Kapteyna, 1922 Zulu, and 3687 Dzus", The Minor Planet Bulletin, 29: 72, Bibcode:2002MPBu...29...72S

[lcdb-8] "LCDB Data for (3687) Dzus". Asteroid Lightcurve Database (LCDB). Retrieved 30 October 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 30 October 2016.

[MPC-Dzus-10] "3687 Dzus (A908 TC)". Minor Planet Center. Retrieved 30 October 2016.

[MPC-Circulars-Archive-11] "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 30 October 2016.

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