6376 Schamp

6376 Schamp

Discovery [1]
Discovered by	C. Shoemaker E. Shoemaker
Discovery site	Palomar Obs.
Discovery date	29 May 1987
Designations
MPC designation	(6376) Schamp
Named after	Larry and Becky Schamp [1] (Shoemaker family friends)
Alternative designations	1987 KD1 · 1971 SG 1991 JL1
Minor planet category	main-belt [1][2] · (middle) background [3]
Orbital characteristics [2]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc	46.32 yr (16,917 d)
Aphelion	3.2315 AU
Perihelion	1.9187 AU
Semi-major axis	2.5751 AU
Eccentricity	0.2549
Orbital period (sidereal)	4.13 yr (1,509 d)
Mean anomaly	144.85°
Mean motion	0° 14^m 18.6^s / day
Inclination	16.353°
Longitude of ascending node	159.76°
Argument of perihelion	123.70°
Physical characteristics
Mean diameter	7.924±0.068 km[4][5] 8.18 km (calculated)[6]
Synodic rotation period	6.6093±0.0003 h[a] 6.613±0.001 h[7]
Geometric albedo	0.20 (assumed)[6] 0.213±0.043[4][5]
Spectral type	S (Pan-STARRS)[6][8] S (SDSS-MOC)[9]
Absolute magnitude (H)	12.8[6][5] 12.9[1][2] 13.20±0.24[8]

6376 Schamp, provisional designation 1987 KD₁, is a stony background asteroid from the central regions of the asteroid belt, approximately 8 kilometers (5 miles) in diameter. It was discovered on 29 May 1987, by American astronomer couple Carolyn and Eugene Shoemaker at the Palomar Observatory in California.[1] The S-type asteroid has a rotation period of 6.6 hours.[6] It was named after Larry and Becky Schamp who took care of the Shoemaker family after Eugene's fatal car accident in Australia.[1]

Orbit and classification

Schamp is a non-family asteroid from the main belt's background population.[3] It orbits the Sun in the central main-belt at a distance of 1.9–3.2 AU once every 4 years and 2 months (1,509 days; semi-major axis of 2.58 AU). Its orbit has an eccentricity of 0.25 and an inclination of 16° with respect to the ecliptic.[2] The body's observation arc begins with its first observation as 1971 SG at the Leoncito Astronomical Complex in September 1971, almost 16 years prior to its official discovery observation at Palomar.[1]

Physical characteristics

Schamp has been characterized as a common, stony S-type asteroid by Pan-STARRS' survey and in the SDSS-based taxonomy.[6][8][9]

Rotation period

In July 2012, two rotational lightcurves of Schamp were obtained from photometric observations by Petr Pravec and Robert Stephens. Lightcurve analysis gave a well-defined rotation period of 6.6093 and 6.613 hours with an identical brightness amplitude of 0.16 magnitude (U=3/3).[6][7][a]

Diameter and albedo

According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Schamp measures 7.924 kilometers in diameter and its surface has an albedo of 0.213,[4][5] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for a stony asteroid of 0.20 and calculates a diameter of 8.18 kilometers based on an absolute magnitude of 12.8.[6]

Naming

This minor planet was named after Americans stationed in Alice Springs, Larry and Becky Schamp, who cared for members of the Shoemaker family after an automobile accident in which Eugene Shoemaker died in 1997.[1] The official naming citation was published by the Minor Planet Center on 11 April 1998 (M.P.C. 31610).[10]

Notes

1. Lightcurve plot of (6376) Schamp rotation period 6.6093±0.0003 hours with a brightness amplitude of 0.16±0.01 mag. Quality Code is 3. Summary figures at Pravec, P.; Wolf, M.; Sarounova, L. (2012) and LCDB

References

1. "6376 Schamp (1987 KD1)". Minor Planet Center. Retrieved 25 May 2018.
2. "JPL Small-Body Database Browser: 6376 Schamp (1987 KD1)" (2018-01-18 last obs.). Jet Propulsion Laboratory. Archived from the original on 18 September 2020. Retrieved 25 May 2018.
3. "Asteroid 6376 Schamp". Small Bodies Data Ferret. Retrieved 25 May 2018.
4. Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Dailey, J.; et al. (November 2011). "Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters". The Astrophysical Journal. 741 (2): 20. arXiv:1109.4096. Bibcode:2011ApJ...741...68M. doi:10.1088/0004-637X/741/2/68. S2CID 118745497.
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. S2CID 35447010. (catalog)
6. "LCDB Data for (6376) Schamp". Asteroid Lightcurve Database (LCDB). Retrieved 25 May 2018.
7. Stephens, Robert D.; Pollock, J.; Reichart, Daniel E.; Ivarsen, Kevin M.; Haislip, Joshua B. (January 2013). "Lightcurve for 6376 Schamp". The Minor Planet Bulletin. 40 (1): 20. Bibcode:2013MPBu...40...20S. ISSN 1052-8091.
8. 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. S2CID 53493339.
9. Carvano, J. M.; Hasselmann, P. H.; Lazzaro, D.; Mothé-Diniz, T. (February 2010). "SDSS-based taxonomic classification and orbital distribution of main belt asteroids". Astronomy and Astrophysics. 510: 12. Bibcode:2010A&A...510A..43C. doi:10.1051/0004-6361/200913322. Retrieved 30 October 2019. (PDS data set)
10. "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 25 May 2018.

External links

• Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
• Dictionary of Minor Planet Names, Google books
• Discovery Circumstances: Numbered Minor Planets (5001)-(10000) – Minor Planet Center
• 6376 Schamp at AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• 6376 Schamp at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters