1048 Feodosia

1048 Feodosia

Discovery[1]
Discovered by	K. Reinmuth
Discovery site	Heidelberg Obs.
Discovery date	29 November 1924
Designations
MPC designation	(1048) Feodosia
Named after	Feodosiya (Crimean city)[2]
Alternative designations	1924 TP · 1942 XP 1942 XZ · 1959 SK
Minor planet category	main-belt · (middle)[3]
Orbital characteristics[1]
Epoch 16 February 2017 (JD 2457800.5)
Uncertainty parameter 0
Observation arc	91.51 yr (33,425 days)
Aphelion	3.2268 AU
Perihelion	2.2377 AU
Semi-major axis	2.7323 AU
Eccentricity	0.1810
Orbital period (sidereal)	4.52 yr (1,650 days)
Mean anomaly	352.46°
Mean motion	0° 13^m 5.52^s / day
Inclination	15.809°
Longitude of ascending node	52.766°
Argument of perihelion	183.31°
Physical characteristics
Dimensions	54.98±22.14 km[4] 58.31±12.99 km[5] 62.218±1.596 km[6] 70.16±1.8 km (IRAS:9)[7] 85.14±1.17 km[8]
Synodic rotation period	10.46 h[9] 23±1 h[10] 35.20±0.23 h[11]
Geometric albedo	0.031±0.001[8] 0.0452±0.002 (IRAS:9)[7] 0.05±0.04[4] 0.057±0.008[6] 0.06±0.04[5]
Spectral type	B–V = 0.709[1] U–B = 0.309[1] XC (Tholen)[1] · Ch (SMASS)[1] · C[3]
Absolute magnitude (H)	9.66[5] · 9.75[1][3][4][6][7][8]

1048 Feodosia, provisional designation 1924 TP, is a carbonaceous asteroid from the middle region of the asteroid belt, approximately 70 kilometers in diameter.

It was discovered on 29 November 1924, by German astronomer Karl Reinmuth at Heidelberg Observatory in southwest Germany, and named for the Crimean city of Feodosiya.[2][12]

Classification and orbit

Feodosia orbits the Sun in the middle main-belt at a distance of 2.2–3.2 AU once every 4 years and 6 months (1,650 days). Its orbit has an eccentricity of 0.18 and an inclination of 16° with respect to the ecliptic.[1] The body's observation arc begins at Johannesburg, 3 years after its official discovery observation at Heidelberg.[12] On 22 November 2005, it occulted the star TYC 1236-138 as seen from Earth.[13]

Physical characteristics

The dark C-type asteroid is classified as a XC and Ch intermediary type in the Tholen and SMASS taxonomy, respectively.[1]

Photometry

In March 1985, a rotational lightcurve of Feodosia was obtained by European astronomer at ESO's La Silla Observatory in Chile, using the Bochum 0.61-metre Telescope during three nights. It gave a rotation period of 10.46 hours with a brightness variation of 0.14 magnitude (U=2).[9]

The asteroid was also observed by French amateur astronomer Pierre Antonini in January 2007, and by the Spanish Observadores de Asteroides (OBAS) group in February 2016. However, the obtained lightcurves were only fragmentary and gave a divergent period of 23 and 35.2 hours with and amplitude of 0.04 and 0.13 magnitude, respectively (U=1+/1).[10][11]

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, the asteroid measures between 54.98 and 85.14 kilometers in diameter, and its surface has an albedo between 0.031 and 0.06.[4][5][6][7][8] The Collaborative Asteroid Lightcurve Link adopts the results obtained by IRAS, that is, an albedo of 0.0452 and a diameter of 70.16 kilometers based on an absolute magnitude of 9.75.[3]

Naming

This minor planet was named for the city Feodosiya on the Crimean peninsula. The named was proposed by I. Putilin, who computed the body's orbital elements.[2]

References

1. "JPL Small-Body Database Browser: 1048 Feodosia (1924 TP)" (2016-06-04 last obs.). Jet Propulsion Laboratory. Retrieved 2 February 2017.
2. Schmadel, Lutz D. (2007). "(1048) Feodosia". Dictionary of Minor Planet Names – (1048) Feodosia. Springer Berlin Heidelberg. pp. 89–90. doi:10.1007/978-3-540-29925-7_1049. ISBN 978-3-540-00238-3.
3. "LCDB Data for (1048) Feodosia". Asteroid Lightcurve Database (LCDB). Retrieved 2 February 2017.
4. Nugent, C. R.; Mainzer, A.; Masiero, J.; Bauer, J.; Cutri, R. M.; Grav, T.; et al. (December 2015). "NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos". The Astrophysical Journal. 814 (2): 13. arXiv:1509.02522. Bibcode:2015ApJ...814..117N. doi:10.1088/0004-637X/814/2/117. S2CID 9341381. Retrieved 2 February 2017.
5. Nugent, C. R.; Mainzer, A.; Bauer, J.; Cutri, R. M.; Kramer, E. A.; Grav, T.; et al. (September 2016). "NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos". The Astronomical Journal. 152 (3): 12. arXiv:1606.08923. Bibcode:2016AJ....152...63N. doi:10.3847/0004-6256/152/3/63.
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 2 February 2017.
7. Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System. 12: IRAS-A-FPA-3-RDR-IMPS-V6.0. Bibcode:2004PDSS...12.....T. Retrieved 22 October 2019.
8. 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)
9. Schober, H. J.; Erikson, A.; Hahn, G.; Lagerkvist, C.-I.; Albrecht, R.; Ornig, W.; et al. (June 1994). "Physical studies of asteroids. XXVIII. Lightcurves and photoelectric photometry of asteroids 2, 14, 51, 105, 181, 238, 258, 369, 377, 416, 487, 626, 679, 1048 and 2183". Astronomy and Astrophysics Supplement Series. 105: 281. Bibcode:1994A&AS..105..281S. Retrieved 2 February 2017.
10. Behrend, Raoul. "Asteroids and comets rotation curves – (1048) Feodosia". Geneva Observatory. Retrieved 2 February 2017.
11. Aznar Macias, Amadeo; Carreno Garcerain, Alfonso; Arce Masego, Enrique; Brines Rodriguez, Pedro; Lozano de Haro, Juan; Fornas Silva, Alvaro; et al. (July 2016). "Twenty-one Asteroid Lightcurves at Group Observadores de Asteroides (OBAS): Late 2015 to Early 2016". The Minor Planet Bulletin. 43 (3): 257–263. Bibcode:2016MPBu...43..257A. ISSN 1052-8091. Retrieved 2 February 2017.
12. "1048 Feodosia (1924 TP)". Minor Planet Center. Retrieved 2 February 2017.
13. "1048 Feodosia (1924 TP)". Richard's Astronomy Pages. Archived from the original on 2 March 2008.

External links

• Year 2008, 1048 Feodosia Occultation event (archived)
• 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
• 1048 Feodosia at AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• 1048 Feodosia at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters