+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   19318 Somanah (1996 XB2) Classification: Main-belt Asteroid          SPK-ID: 2019318 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 26 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2374395751148307 2.8604e-08   a 2.351411822116837 9.6319e-09 au q 1.793093598153426 6.5516e-08 au i 24.35581405901802 8.5171e-07 deg node 263.9587098665415 2.151e-06 deg peri 158.2681227914115 2.9849e-06 deg M 259.9207931117103 5.6684e-06 deg tp 2459566.627902097666 (2021-Dec-18.12790210) 2.2723e-05 TDB period 1317.017279146548 3.61 8.0921e-06 2.215e-08 d yr n .2733449330545509 1.6795e-09 deg/d Q 2.909730046080248 1.1919e-08 au   Orbit Determination Parameters    # obs. used (total)      1055      data-arc span      12726 days (34.84 yr)      first obs. used      1985-11-08      last obs. used      2020-09-11      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .47692      source      ORB      producer      Otto Matic      solution date      2021-Mar-17 02:13:49   Additional Information  Earth MOID = .820447 au   Jupiter MOID = 2.42705 au   T_jup = 3.403  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.88   n/a E2021B10   diameter diameter 4.252 km 0.087 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.323   0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   19318 Somanah           Discovered 1996 Dec. 2 by F. Manca and M. Cavagna at Sormano. Radhakhrishna Dinesh Somanah (b. 1960) has been a professor of physics and astrophysics at the University of Mauritius since 1987. As one of the three pioneers of professional astronomy in the republic, he was particularly involved in the construction of the Mauritius Radio Telescope. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20070601/MPCPages.arc Last Updated: 2007-06-06 Alternate Designations  1996 XB2 = 1985 VE2  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-10 12:42 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin