+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   14147 Wenlingshuguang (1998 SG43) Classification: Main-belt Asteroid          SPK-ID: 2014147 [ 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 36 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .02897391214703995 2.1908e-08   a 2.325313468945321 6.2803e-09 au q 2.257940040781771 5.1367e-08 au i 3.60634802471243 1.8991e-06 deg node 83.91302321386495 2.4487e-05 deg peri 291.7427029493715 4.4479e-05 deg M 90.78506520991466 4.6557e-05 deg tp 2458873.887654279468 (2020-Jan-25.38765428) 0.00016749 TDB period 1295.151842293885 3.55 5.247e-06 1.437e-08 d yr n .2779596864583788 1.1261e-09 deg/d Q 2.392686897108872 6.4623e-09 au   Orbit Determination Parameters    # obs. used (total)      2338      data-arc span      11245 days (30.79 yr)      first obs. used      1990-05-31      last obs. used      2021-03-14      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .46058      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 00:18:07   Additional Information  Earth MOID = 1.25932 au   Jupiter MOID = 2.69842 au   T_jup = 3.571  [ 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 14.0   n/a MPO395140   diameter diameter 4.518 km 0.144 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.286   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   14147 Wenlingshuguang           Discovered 1998 Sept. 23 by the Beijing Schmidt CCD Asteroid Program at Xinglong. Wenlingshuguang is the event of the first sunlight ("Shuguang" in Chinese) of the new millennium shining on Wenling, Zhejiang, the first geographical point on China's mainland. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20010109/MPCPages.arc Last Updated: 2009-05-11 Alternate Designations  1998 SG43 = 1997 JT13  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-13 21:00 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin