+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 31 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1231630554113634 1.9195e-08   a 2.593198986843527 1.0357e-08 au q 2.273812676334226 4.966e-08 au i 12.38325858969501 4.5226e-07 deg node 284.4325625505463 4.6434e-06 deg peri 160.4205402304561 1.2665e-05 deg M 217.7387239325233 1.2523e-05 deg tp 2459803.248850673166 (2022-Aug-11.74885067) 5.4948e-05 TDB period 1525.289187898317 4.18 9.1381e-06 2.502e-08 d yr n .2360208168105098 1.414e-09 deg/d Q 2.912585297352827 1.1633e-08 au   Orbit Determination Parameters    # obs. used (total)      1883      data-arc span      24156 days (66.14 yr)      first obs. used      1954-07-28      last obs. used      2020-09-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .43238      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 01:12:27   Additional Information  Earth MOID = 1.29353 au   Jupiter MOID = 2.28775 au   T_jup = 3.375  [ 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 13.08   n/a E2021B10   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-May-10 23:28 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin