+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   2983 Poltava (1981 RW2) Classification: Main-belt Asteroid          SPK-ID: 2002983 [ 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 33 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .05791912418381211 3.8456e-08   a 2.845995946452178 1.1006e-08 au q 2.681158353802988 1.0782e-07 au i 4.27072070904111 3.9279e-06 deg node 247.7424338867063 5.2977e-05 deg peri 86.13223119447075 6.4182e-05 deg M 24.41947511111264 3.5691e-05 deg tp 2458881.544735617221 (2020-Feb-02.04473562) 0.00017389 TDB period 1753.67795511348 4.80 1.0172e-05 2.785e-08 d yr n .2052828450915348 1.1907e-09 deg/d Q 3.010833539101367 1.1643e-08 au   Orbit Determination Parameters    # obs. used (total)      2967      data-arc span      31829 days (87.14 yr)      first obs. used      1933-09-25      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .44532      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 02:09:25   Additional Information  Earth MOID = 1.67513 au   Jupiter MOID = 2.20399 au   T_jup = 3.301  [ 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 11.4   n/a MPO347544   diameter diameter 30.690 km 0.178 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 8.865 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Carbognani, A. (2011) Minor Planet Bull. 38, 57-63.] geometric albedo albedo 0.072   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   2983 Poltava (1981 RW2)          Discovered 1981-Sep-02 by Chernykh, N. at Nauchnyj Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1981 RW2 = 1933 SM = 1955 FM = 1962 SF = 1971 OD = 1972 VE = 1972 XK1 = 1977 UO1 = 1977 VR2  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-26 17:47 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin