+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   150520 Dong (2000 RF107) Classification: Main-belt Asteroid          SPK-ID: 2150520 [ 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 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1019583652601197 5.411e-08   a 2.600153298193448 1.728e-08 au q 2.335045918483936 1.426e-07 au i 3.190424985931512 6.4772e-06 deg node 37.30143426481624 7.9416e-05 deg peri 213.5171713689487 8.5088e-05 deg M 24.87905854577436 2.8634e-05 deg tp 2459094.665247487161 (2020-Sep-02.16524749) 0.00012216 TDB period 1531.428966032694 4.19 1.5266e-05 4.18e-08 d yr n .2350745662938665 2.3434e-09 deg/d Q 2.865260677902961 1.9042e-08 au   Orbit Determination Parameters    # obs. used (total)      298      data-arc span      7233 days (19.80 yr)      first obs. used      2000-09-03      last obs. used      2020-06-23      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .52228      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 19:18:54   Additional Information  Earth MOID = 1.32016 au   Jupiter MOID = 2.15715 au   T_jup = 3.405  [ 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 16.63   n/a E2021B55   diameter diameter 3.017 km 0.566 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.049   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   150520 Dong           Discovered 2000 Sept. 3 by the Sloan Digital Sky Survey at Apache Point. Feng Dong (b. 1979) is a Chinese-American astronomer and a contributor to the Sloan Digital Sky Survey, best known for his work in building large optical galaxy cluster catalogs from the SDSS. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20120406/MPCPages.arc Last Updated: 2012-04-09 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-22 20:22 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin