+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   20880 Yiyideng (2000 VE57) Classification: Main-belt Asteroid          SPK-ID: 2020880 [ 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 28 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .04693815654157067 4.1955e-08   a 2.694441733533042 1.2623e-08 au q 2.567969605652327 1.1702e-07 au i 4.584215941061 5.5397e-06 deg node 4.059097850431179 3.811e-05 deg peri 312.9613691551008 6.2757e-05 deg M 298.5446656877575 5.0039e-05 deg tp 2459476.277421381875 (2021-Sep-18.77742138) 0.00022436 TDB period 1615.480133800158 4.42 1.1353e-05 3.108e-08 d yr n .2228439659936626 1.566e-09 deg/d Q 2.820913861413757 1.3216e-08 au   Orbit Determination Parameters    # obs. used (total)      1286      data-arc span      14723 days (40.31 yr)      first obs. used      1980-03-16      last obs. used      2020-07-07      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .53745      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 03:34:01   Additional Information  Earth MOID = 1.5555 au   Jupiter MOID = 2.31781 au   T_jup = 3.364  [ 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 14.82   n/a E2021B10   diameter diameter 3.601 km 1.318 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.197   0.111 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   20880 Yiyideng           Discovered 2000 Nov. 3 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. Yiyi Deng (b. 1986) was awarded first place in the 2004 Intel International Science and Engineering Fair for her physics project. She also received the Intel Foundation Achievement Award. She attends the Ward Melville High School, East Setauket, 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: 20041226/MPCPages.arc Last Updated: 2004-12-25 [ show close-approach data ] Alternate Designations  2000 VE57 = 1980 FU4 = 1995 TR1 = 1998 HA55  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-18 20:14 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin