+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1603 Neva (1926 VH) Classification: Main-belt Asteroid          SPK-ID: 2001603 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 41 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09562591936041366 3.6902e-08   a 2.753647559901711 9.7921e-09 au q 2.49032748039155 1.0224e-07 au i 8.558789609412718 3.7869e-06 deg node 130.0030284036223 2.6988e-05 deg peri 257.0159041845956 3.4005e-05 deg M 175.8865378254536 2.2501e-05 deg tp 2458185.061790891823 (2018-Mar-07.56179089) 0.0001028 TDB period 1669.017759450496 4.57 8.9027e-06 2.437e-08 d yr n .2156957275988038 1.1505e-09 deg/d Q 3.016967639411872 1.0728e-08 au   Orbit Determination Parameters    # obs. used (total)      2925      data-arc span      41292 days (113.05 yr)      first obs. used      1907-08-09      last obs. used      2020-08-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .40122      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 04:17:20   Additional Information  Earth MOID = 1.51102 au   Jupiter MOID = 2.40579 au   T_jup = 3.322  [ 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 10.96   n/a E2021B10   diameter diameter 39.564 km 0.192 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 6.426 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Aznar, A.M. (2016) Minor Planet Bull. 43, 350-353] [Fuller, K.; Sanchez, C.; Montgomery, K. (2019) Minor Planet Bull 46, 1-2.] [Polakis, T. (2019) Minor Planet Bull. 46, 287-292.] [Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.] geometric albedo albedo 0.050   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   SMASSII spectral type spec_B Ch   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) 1603 Neva (1926 VH)          Discovered 1926-Nov-04 by Neujmin, G. at Simeis Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1926 VH = 1935 TF = 1942 FE = A907 PA  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Feb-28 07:08 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin