+ 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 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 43 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .0446714712714875 1.4408e-08   a 3.009156139918872 1.0418e-08 au q 2.874732707863065 4.2745e-08 au i 11.54959939020724 2.3517e-07 deg node 86.86245183632343 7.8278e-07 deg peri 55.42906143597398 1.856e-05 deg M 167.0234926969308 2.1225e-05 deg tp 2458511.912960698331 (2019-Jan-28.41296070) 0.00011039 TDB period 1906.626002166298 5.22 9.9015e-06 2.711e-08 d yr n .1888152157743417 9.8056e-10 deg/d Q 3.143579571974678 1.0884e-08 au   Orbit Determination Parameters    # obs. used (total)      3023      data-arc span      41098 days (112.52 yr)      first obs. used      1908-12-16      last obs. used      2021-06-24      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .42002      source      ORB      producer      Otto Matic      solution date      2021-Jul-08 12:25:22   Additional Information  Earth MOID = 1.90709 au   Jupiter MOID = 1.97376 au   T_jup = 3.218  [ 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 11.06   n/a E2021B10   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-Jul-28 05:55 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin