+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   15925 Rokycany (1997 VM6) Classification: Main-belt Asteroid          SPK-ID: 2015925 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 29 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1240557900988871 3.2087e-08   a 2.591375254663512 1.0518e-08 au q 2.269900150003526 8.3661e-08 au i 12.38790020462569 3.7337e-06 deg node 284.4319170602193 2.5424e-05 deg peri 160.3311007802847 3.6537e-05 deg M 170.648559101896 2.6299e-05 deg tp 2458278.239253063030 (2018-Jun-08.73925306) 0.00010967 TDB period 1523.680424058267 4.17 9.2769e-06 2.54e-08 d yr n .2362700172002954 1.4385e-09 deg/d Q 2.912850359323499 1.1823e-08 au   Orbit Determination Parameters    # obs. used (total)      1845      data-arc span      24156 days (66.14 yr)      first obs. used      1954-07-28      last obs. used      2020-09-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .43341      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 02:30:33   Additional Information  Earth MOID = 1.28994 au   Jupiter MOID = 2.28813 au   T_jup = 3.376  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.1   n/a MPO473980   diameter diameter 6.435 km 0.087 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 3.011 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Aznar, A.M.; Licandro, J.; Serra-Ricart, M. (2019) Minor Planet Bull. 46, 395-399.] geometric albedo albedo 0.269   0.069 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   15925 Rokycany           Discovered 1997 Nov. 10 by L. Šarounová at Ondřejov. Rokycany is a town in West Bohemia about which the first written evidence dates from 1110. In 1947 a public observatory was founded there, concentrating on occultation observations, work with youth, teachers and amateur telescope making. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20100527/MPCPages.arc Last Updated: 2010-12-06 [ show close-approach data ] Alternate Designations  1997 VM6 = 1988 VE9  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-22 14:25 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin