+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   58608 Geroldrichter (1997 UY) Classification: Main-belt Asteroid          SPK-ID: 2058608 [ 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 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1505573334619738 3.6325e-08   a 2.80472978056386 1.5946e-08 au q 2.382457143720778 1.0363e-07 au i 6.059043056800605 5.871e-06 deg node 315.0983204685533 3.6298e-05 deg peri 318.0787519142773 4.3781e-05 deg M 61.85436789918344 2.1579e-05 deg tp 2458905.716726007898 (2020-Feb-26.21672601) 0.00010374 TDB period 1715.674773528124 4.70 1.4631e-05 4.006e-08 d yr n .2098299780089987 1.7894e-09 deg/d Q 3.227002417406942 1.8347e-08 au   Orbit Determination Parameters    # obs. used (total)      731      data-arc span      9415 days (25.78 yr)      first obs. used      1995-03-01      last obs. used      2020-12-09      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55902      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 05:43:55   Additional Information  Earth MOID = 1.36851 au   Jupiter MOID = 1.92297 au   T_jup = 3.299  [ 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 15.29   n/a E2021B10   diameter diameter 2.891 km 0.636 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.232   0.123 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   58608 Geroldrichter           Discovered 1997 Oct. 22 by M. Tichy at Klet. Gerold A. Richter (b. 1929), astronomer at the Sonneberg Observatory, Thuringia, is known for his expertise in the use of photographic plates in variable star research, and contribution to the discovery, typology and statistics of variable stars. He analysed x-ray sources on archival photographic plates. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20050407/MPCPages.arc Last Updated: 2005-04-15 [ show close-approach data ] Alternate Designations  1997 UY = 2002 VD9  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-01 02:34 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin