+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   608 Adolfine (A916 OH) Classification: Main-belt Asteroid          SPK-ID: 2000608 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 39 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1251861410768098 3.683e-08   a 3.020776451224747 1.2884e-08 au q 2.642617104240221 1.1323e-07 au i 9.382226566495467 3.8922e-06 deg node 293.8486990751288 2.4896e-05 deg peri 70.96537822472234 2.9557e-05 deg M 260.2774484525225 1.793e-05 deg tp 2459731.711157956704 (2022-Jun-01.21115796) 9.7279e-05 TDB period 1917.680744193221 5.25 1.2269e-05 3.359e-08 d yr n .1877267637431766 1.2011e-09 deg/d Q 3.398935798209274 1.4497e-08 au   Orbit Determination Parameters    # obs. used (total)      2516      data-arc span      41612 days (113.93 yr)      first obs. used      1906-09-18      last obs. used      2020-08-22      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .40253      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 04:27:46   Additional Information  Earth MOID = 1.65695 au   Jupiter MOID = 2.11711 au   T_jup = 3.214  [ 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 10.95   n/a E2021B10   diameter diameter 20.365 km 0.078 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 8.3458 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Menke, J.; Cooney, W.; Gross, J.; Terrell, D. (2008) Minor Planet Bull. 35, 155-160.] [Behrend, R. (2013) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Durech, J.; Hanus, J.; Broz, M.; Lehky, M.; et al. (2017) Icarus 304, 101-109.] [Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.] geometric albedo albedo 0.245   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   608 Adolfine (A916 OH)          Discovered 1906-Sep-18 by Kopff, A. at Heidelberg Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  A916 OH = 1927 QE = 1948 RR1 = 1953 VR = A906 SJ = A911 QD  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Mar-03 03:54 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin