+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1978 Patrice (1971 LD) Classification: Main-belt Asteroid          SPK-ID: 2001978 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 39 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2139522583766302 1.4121e-08   a 2.19417833629865 4.4112e-09 au q 1.724728925966476 3.1977e-08 au i 4.342703426983439 7.1446e-07 deg node 54.26981591152917 1.5652e-05 deg peri 268.7383746032222 1.6429e-05 deg M 95.08509525079114 5.0245e-06 deg tp 2459082.943176441808 (2020-Aug-21.44317644) 1.6523e-05 TDB period 1187.151952503406 3.25 3.58e-06 9.802e-09 d yr n .3032467741310203 9.1447e-10 deg/d Q 2.663627746630823 5.3549e-09 au   Orbit Determination Parameters    # obs. used (total)      3276      data-arc span      24948 days (68.30 yr)      first obs. used      1952-11-16      last obs. used      2021-03-07      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .43528      source      ORB      producer      Otto Matic      solution date      2021-Jul-08 13:00:48   Additional Information  Earth MOID = .718652 au   Jupiter MOID = 2.66817 au   T_jup = 3.636  [ 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 13.00   n/a E2021B10   diameter diameter 6.732 km 0.166 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   rotation period rot_per 5.8813 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so. Published Reference List: [Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.] [Pravec, P.; Wolf, M.; Sarounova, L. (2017) http://www.asu.cas.cz/~ppravec/neo.htm] geometric albedo albedo 0.270   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   1978 Patrice           Discovered 1971 June 13 at the Perth Observatory. Named in honor of the daughter of Dennis Harwood, member of the astrometric team at the Perth Observatory. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: MPC 6530 Last Updated: 2006-03-21 Alternate Designations  1971 LD = 1942 PL = 1952 WC = 1955 RJ1 = 1965 VC = 1968 OY = 1975 VQ8  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jul-28 05:04 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin