+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   875 Nymphe (A917 KG) Classification: Main-belt Asteroid          SPK-ID: 2000875 [ 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 45 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1513669239052398 1.4169e-08   a 2.552582975064128 6.6496e-09 au q 2.166206342115785 3.5596e-08 au i 14.56996658565368 5.5018e-07 deg node 196.0473368973569 1.2434e-06 deg peri 117.0449495320679 8.0698e-06 deg M 70.35305252023721 6.8811e-06 deg tp 2458909.395664095416 (2020-Feb-29.89566410) 2.8232e-05 TDB period 1489.595080405433 4.08 5.8207e-06 1.594e-08 d yr n .2416764157827485 9.4437e-10 deg/d Q 2.93895960801247 7.6561e-09 au   Orbit Determination Parameters    # obs. used (total)      3090      data-arc span      37909 days (103.79 yr)      first obs. used      1917-05-26      last obs. used      2021-03-10      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .38301      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 11:34:13   Additional Information  Earth MOID = 1.19471 au   Jupiter MOID = 2.47981 au   T_jup = 3.379  [ 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 11.21   n/a E2021B10   diameter diameter 14.107 km 0.262 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 12.618 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Behrend, R. (2003) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Warner, B.D. (2004) Minor Planet Bull. 31, 19-22.] [Carbo, L.; Green, D.; Kragh, K.; Krotz, J.; et al. (2009) Minor Planet Bull. 36, 152-157.] [Warner, B.D. (2011) Minor Planet Bull. 38, 96-101.] [Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.] [Kim, M.-J.; Choi, Y.-J.; Moon, H.-K.; Byun, Y.-I.; et al. (2014) Astron. J. 147, A56.] geometric albedo albedo 0.223   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   875 Nymphe (A917 KG)          Discovered 1917-May-19 by Wolf, M. at Heidelberg Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  A917 KG = 1926 RL = 1970 GC1 = 1971 UK4 = A917 KF  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-May-15 06:20 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin