+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   19514 (1998 QB75) Classification: Main-belt Asteroid          SPK-ID: 2019514 [ 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 36 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1806204525593345 8.1903e-09   a 2.545428041570788 9.1908e-09 au q 2.085671676745051 1.8787e-08 au i 11.59621187385632 1.1673e-06 deg node 294.5299045117163 1.107e-06 deg peri 104.6440399609372 1.5013e-05 deg M 137.9650666008025 1.2657e-05 deg tp 2458632.031640373226 (2019-May-28.53164037) 5.1745e-05 TDB period 1483.336430792172 4.06 8.0339e-06 2.2e-08 d yr n .2426961224216296 1.3145e-09 deg/d Q 3.005184406396523 1.0851e-08 au   Orbit Determination Parameters    # obs. used (total)      2105      data-arc span      25598 days (70.08 yr)      first obs. used      1951-02-04      last obs. used      2021-03-06      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .4911      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 02:56:14   Additional Information  Earth MOID = 1.12848 au   Jupiter MOID = 2.48266 au   T_jup = 3.392  [ 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 13.87   n/a E2021B10   diameter diameter 5.420 km 0.124 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   geometric albedo albedo 0.182   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   19514 (1998 QB75)          Discovered 1998-Aug-24 by LINEAR at Socorro Reference: 20001211/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1998 QB75 = 1986 RO3 = 2000 AZ143  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-19 16:53 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin