+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   58418 Luguhu (1996 BA4) Classification: Main-belt Asteroid          SPK-ID: 2058418 [ 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 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1760250117342879 8.0458e-08   a 3.169495502579673 2.4408e-08 au q 2.611585019546313 2.5601e-07 au i 28.37700781291038 7.6149e-06 deg node 20.73542819953991 9.4242e-06 deg peri 15.05257209795993 1.7841e-05 deg M 167.7575795269349 1.4395e-05 deg tp 2458040.075373873392 (2017-Oct-13.57537387) 7.8156e-05 TDB period 2061.026788658841 5.64 2.3808e-05 6.518e-08 d yr n .1746702187380401 2.0177e-09 deg/d Q 3.727405985613033 2.8704e-08 au   Orbit Determination Parameters    # obs. used (total)      692      data-arc span      8885 days (24.33 yr)      first obs. used      1996-01-26      last obs. used      2020-05-24      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55984      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 22:51:11   Additional Information  Earth MOID = 1.62297 au   Jupiter MOID = 1.76067 au   T_jup = 2.994  [ 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 14.45   n/a E2021B10   diameter diameter 9.384 km 0.215 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.038   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   58418 Luguhu           Discovered 1996 Jan. 26 by the Beijing Schmidt CCD Asteroid Program in Xinglong. Luguhu Lake is situated at the junction of southwestern Sichuan and northwestern Yunnan. Around the lake live the Mosuo people, who retain the vestiges of their ancient matriarchal society. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20080122/MPCPages.arc Last Updated: 2008-03-05 [ show close-approach data ] Alternate Designations  1996 BA4 = 2000 RQ6  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-01 02:20 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin