+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   27071 Rangwala (1998 SA109) Classification: Main-belt Asteroid          SPK-ID: 2027071 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 35 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1162308928747811 2.6378e-08   a 2.29127589222841 6.1147e-09 au q 2.024958849452241 6.0619e-08 au i 3.657857906953003 2.9914e-06 deg node 312.8355830525711 5.9659e-05 deg peri 149.8929242425167 6.2054e-05 deg M 125.0470389203254 1.6871e-05 deg tp 2458956.466828276067 (2020-Apr-16.96682828) 5.9056e-05 TDB period 1266.818816250012 3.47 5.0711e-06 1.388e-08 d yr n .2841763915898077 1.1376e-09 deg/d Q 2.557592935004578 6.8254e-09 au   Orbit Determination Parameters    # obs. used (total)      1851      data-arc span      10313 days (28.24 yr)      first obs. used      1993-03-21      last obs. used      2021-06-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .45766      source      ORB      producer      Otto Matic      solution date      2021-Jul-08 05:51:30   Additional Information  Earth MOID = 1.04304 au   Jupiter MOID = 2.5537 au   T_jup = 3.586  [ 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 14.71   n/a E2021B10   diameter diameter 2.489 km 0.125 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.653   0.098 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   27071 Rangwala           Discovered 1998 Sept. 26 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. Alydaar Rangwala (b. 1993) was a finalist in the 2011 Intel Science Talent Search and was also awarded second place in the 2010 Intel International Science and Engineering Fair for his biochemistry project. He attends the Albany Academies, Albany, New York, U.S.A. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20110319/MPCPages.arc Last Updated: 2011-03-23 Alternate Designations  1998 SA109 = 1993 FY28  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jul-27 20:05 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin