+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   19722 (1999 VU47) Classification: Main-belt Asteroid          SPK-ID: 2019722 [ 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 38 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .05954093144612248 3.4974e-08   a 2.559635032648962 1.088e-08 au q 2.407231978642916 8.9176e-08 au i 13.7941590629377 3.8159e-06 deg node 259.6282397382314 1.5204e-05 deg peri 326.1175626630615 4.1245e-05 deg M 206.6482836056834 4.0939e-05 deg tp 2459837.664595058950 (2022-Sep-15.16459506) 0.00017168 TDB period 1495.772330525561 4.10 9.5372e-06 2.611e-08 d yr n .2406783389779037 1.5346e-09 deg/d Q 2.712038086655007 1.1528e-08 au   Orbit Determination Parameters    # obs. used (total)      1799      data-arc span      16064 days (43.98 yr)      first obs. used      1977-03-20      last obs. used      2021-03-13      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .47811      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 03:04:04   Additional Information  Earth MOID = 1.4031 au   Jupiter MOID = 2.34276 au   T_jup = 3.393  [ 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 13.93   n/a E2021B10   diameter diameter 4.766 km 0.251 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.382   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   19722 (1999 VU47)          Discovered 1999-Nov-03 by LINEAR at Socorro Reference: 20001211/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1999 VU47 = 1977 FR = 1998 MJ20  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-17 06:43 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin