+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1464 Armisticia (1939 VO) Classification: Main-belt Asteroid          SPK-ID: 2001464 [ 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 39 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .04582424399049732 2.8651e-08   a 3.003772740919627 1.1163e-08 au q 2.866127125947721 8.3298e-08 au i 11.56551297456926 3.7995e-06 deg node 86.897316717279 1.7255e-05 deg peri 53.43965555664148 4.9112e-05 deg M 94.14105479683123 4.5866e-05 deg tp 2458503.249081754343 (2019-Jan-19.74908175) 0.00024206 TDB period 1901.51184257245 5.21 1.06e-05 2.902e-08 d yr n .1893230386159341 1.0553e-09 deg/d Q 3.141418355891532 1.1674e-08 au   Orbit Determination Parameters    # obs. used (total)      2859      data-arc span      40840 days (111.81 yr)      first obs. used      1908-12-16      last obs. used      2020-10-09      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .40443      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 04:18:44   Additional Information  Earth MOID = 1.89724 au   Jupiter MOID = 1.98014 au   T_jup = 3.219  [ 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 11.0   n/a MPO347528   diameter diameter 23.313 km 5.112 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 7.50 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Brinsfield, J. (2008) Minor Planet Bull. 35, 119-122.] [Hanus, J.; Broz, M.; Durech, J.; Warner, B.D.; et al. (2013) Astron. Astrophys. 559, A134.] geometric albedo albedo 0.126   0.356 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   1464 Armisticia (1939 VO)          Discovered 1939-Nov-11 by Van Biesbroeck, G. at Williams Bay Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1939 VO = 1937 LJ = 1955 YN = 1974 HF1 = A908 YD  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-24 14:07 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin