+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   3803 Tuchkova (1981 TP1) Classification: Main-belt Asteroid          SPK-ID: 2003803 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 38 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .05083251301236461 3.9595e-08   a 3.049606537112795 1.9079e-08 au q 2.894587373132417 1.2576e-07 au i 13.04527708007491 4.2289e-06 deg node 250.3610483171412 1.8528e-05 deg peri 275.4581553143413 4.5719e-05 deg M 330.9967525884695 4.2977e-05 deg tp 2459157.214170514297 (2020-Nov-03.71417051) 0.00023256 TDB period 1945.199466274863 5.33 1.8255e-05 4.998e-08 d yr n .1850709946417036 1.7368e-09 deg/d Q 3.204625701093173 2.0049e-08 au   Orbit Determination Parameters    # obs. used (total)      2522      data-arc span      15833 days (43.35 yr)      first obs. used      1976-12-16      last obs. used      2020-04-22      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .42771      source      ORB      producer      Otto Matic      solution date      2020-May-20 01:59:19   Additional Information  Earth MOID = 1.93657 au   Jupiter MOID = 1.92036 au   T_jup = 3.196  [ 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 11.2   n/a MPO384787   diameter diameter 38.019 km 0.166 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   geometric albedo albedo 0.047   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   3803 Tuchkova (1981 TP1)          Discovered 1981-Oct-02 by Zhuravleva, L. at Nauchnyj Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1981 TP1 = 1952 HF4 = 1976 YA1 = 1980 RU3 = 1981 WB4 = 1984 JV  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-08 10:10 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin