13154 Petermrva

13154 Petermrva
Discovery [1]
Discovered by A. Galád
A. Pravda
Discovery site Modra Obs.
Discovery date 7 September 1995
Designations
MPC designation 13154 Petermrva
Named after
 Peter Mrva
(amateur astronomer)[2]
1995 RC · 1972 TL6
main-belt · Flora [3]
Orbital characteristics [1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 43.49 yr (15,885 days) 
Aphelion 2.5779 AU (385.6 Gm)
Perihelion 1.8409 AU (275.4 Gm)
2.2094 AU (330.5 Gm)
Eccentricity 0.1668
3.29 yr (1,200 days)
110.34°
0° 18m 0s / day
Inclination 5.5260°
331.65°
58.762°
Physical characteristics
Dimensions 4.170±0.239 km[4]
4.176 km[5]
4.18 km (taken)[3]
2.98502±0.00004 h[6]
2.9848±0.0002 h[lower-alpha 1]
0.1523±0.0199[4]
0.1464[5]
S [3]
14.1[1]
14.6±0.058[5]
14.56[4]
14.11±0.03 (R)[lower-alpha 1]
14.46±0.32[7]

    13154 Petermrva, provisional designation 1995 RC, is a stony Flora asteroid from the inner regions of the asteroid belt, approximately 4.2 kilometers in diameter. It was discovered on 7 September 1995, by Slovak astronomers Adrián Galád and Alexander Pravda at the Modra Observatory in the Bratislava Region of Slovakia.[8]

    The S-type asteroid is a member of the Flora family, one of the largest groups of stony asteroids in the main-belt. It orbits the Sun at a distance of 1.8–2.6 AU once every 3 years and 3 months (1,200 days). Its orbit shows an eccentricity of 0.17 and an inclination of 6 degrees from the plane of the ecliptic.[1]

    Two well-defined photometric light-curve analysis at the Modra and Ondřejov Observatory rendered a rotation period of 2.98502±0.00004 and 2.9848±0.0002 hours, with a brightness amplitude of 0.18 and 0.14 in magnitude, respectively (U=3/3).[6][lower-alpha 1] According to the thermal observation carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, the asteroid measures 4.2 kilometer and has, for a stony asteroid of the Flora family, a relatively low albedo of 0.15.[4]

    The minor planet is named after Czech amateur astronomer Peter Mrva (b. 1962) who participated in the construction the discovering Modra observatory, after which the minor planet 11118 Modra is named. He was also one of the first observers at the newly installed observatory. The second discoverer, Alexander Pravda, is thankful for his explanation and inspiration in some fields of astronomy and computer graphics.[2]

    References

    1. 1 2 3 Pravec (2008) web: rotation period 2.9848±0.0002 hours with a brightness amplitude of 0.14 mag. The Collaborative Asteroid Lightcurve Link rates the observations with a quality code of 3 (U=3), which denotes a secure result within the precision given and no ambiguity. Summary figures at Collaborative Asteroid Lightcurve Link (CALL) for (13154) Petermrva and Ondrejov Asteroid Photometry Project, Pravec, P.; Wolf, M.; Sarounova, L.
    1. 1 2 3 4 "JPL Small-Body Database Browser: 13154 Petermrva (1995 RC)" (2016-04-03 last obs.). Jet Propulsion Laboratory. Retrieved April 2016.
    2. 1 2 Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (13154) Petermrva. Springer Berlin Heidelberg. p. 793. ISBN 978-3-540-00238-3. Retrieved January 2016.
    3. 1 2 3 "LCDB Data for (13154) Petermrva". Asteroid Lightcurve Database (LCDB). Retrieved January 2016.
    4. 1 2 3 4 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. Retrieved January 2016.
    5. 1 2 3 Pravec, Petr; Harris, Alan W.; Kusnirák, Peter; Galád, Adrián; Hornoch, Kamil (September 2012). "Absolute magnitudes of asteroids and a revision of asteroid albedo estimates from WISE thermal observations". Icarus 221 (1): 365–387. Bibcode:2012Icar..221..365P. doi:10.1016/j.icarus.2012.07.026. Retrieved January 2016.
    6. 1 2 Galád, A. (April 2007). "Lightcurves and Synodic Periods for Asteroids 1998 ST49, (13154) and (27529)". Earth 100 (1-2): 77–82(EM&PHomepage). Bibcode:2007EM&P..100...77G. doi:10.1007/s11038-006-9099-1. Retrieved January 2016.
    7. ↑ 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 April 2016.
    8. ↑ "13154 Petermrva (1995 RC)". Minor Planet Center. Retrieved January 2016.

    External links


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