+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1334 Lundmarka (1934 OB) Classification: Main-belt Asteroid          SPK-ID: 2001334 [ 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 42 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09389228509215145 3.1018e-08   a 2.913619217635959 1.0302e-08 au q 2.640052851403713 8.8801e-08 au i 11.45489616704561 3.5688e-06 deg node 133.1342441023104 1.7496e-05 deg peri 129.2089298595897 2.6272e-05 deg M 124.744265067429 2.0739e-05 deg tp 2458371.043526537911 (2018-Sep-09.54352654) 0.00010392 TDB period 1816.551088131096 4.97 9.6346e-06 2.638e-08 d yr n .1981777459231137 1.0511e-09 deg/d Q 3.187185583868206 1.1269e-08 au   Orbit Determination Parameters    # obs. used (total)      3591      data-arc span      31535 days (86.34 yr)      first obs. used      1934-07-16      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .40379      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 01:59:53   Additional Information  Earth MOID = 1.64106 au   Jupiter MOID = 1.99377 au   T_jup = 3.246  [ 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 10.4   n/a MPO458840   diameter diameter 27.621 km 2.334 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   rotation period rot_per 6.2497 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Bohn, L.; Hibbler, B.; Stein, G.; Ditteon, R. (2015) Minor Planet Bull. 42, 89-90.] [Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.] [Polakis, T. (2018) Minor Planet Bull. 45, 347-352.] [Fauerbach, M. (2019) Minor Planet Bull. 46, 3-4.] geometric albedo albedo 0.242   0.246 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   1334 Lundmarka (1934 OB)          Discovered 1934-Jul-16 by Reinmuth, K. at Heidelberg Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-21 06:20 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin