+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   4728 Lyapidevskij (1979 VG) Classification: Main-belt Asteroid          SPK-ID: 2004728 [ 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 30 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .112312482816397 2.1857e-08   a 2.308691238671368 6.8572e-09 au q 2.049396393599724 5.0318e-08 au i 5.954873828275852 1.1741e-06 deg node 24.16984034793646 8.4438e-06 deg peri 21.00113158739781 9.8495e-06 deg M 248.1664059984394 8.7027e-06 deg tp 2459598.531084956477 (2022-Jan-19.03108496) 3.1826e-05 TDB period 1281.289328699678 3.51 5.7084e-06 1.563e-08 d yr n .2809669853141972 1.2518e-09 deg/d Q 2.567986083743013 7.6273e-09 au   Orbit Determination Parameters    # obs. used (total)      2225      data-arc span      24176 days (66.19 yr)      first obs. used      1954-06-30      last obs. used      2020-09-07      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .49659      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 16:41:36   Additional Information  Earth MOID = 1.05834 au   Jupiter MOID = 2.78581 au   T_jup = 3.570  [ 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 13.92   n/a E2021B10   diameter diameter 4.046 km 0.279 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.357   0.059 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   4728 Lyapidevskij (1979 VG)          Discovered 1979-Nov-11 by Chernykh, N. S. at Nauchnyj Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ hide close-approach data ] Close-Approach Data   ...sorted by Date/Time (TDB) Date/Time (TDB) Time Uncertainty (days_HH:MM) Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified 1973-Nov-18 03:28 < 00:01 Vesta 0.0380950984774162 0.038094092456238 0.0380961046763023 4.75356643957096 4.75356578250956 2442004.644132792 0.465299019745311 198.725423305455 37.008117786462 80.0572353642565 151303.473927385 T 30 CATAB v2.0f-lin.ifort 2021-Apr-12 16:42:33 2021-Apr-12 16:42 Alternate Designations  1979 VG = 1972 TK1 = 1979 SH10 = 1986 TQ3 = 1993 TB45  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-19 01:18 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin