+ 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 | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 33 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .214219470665462 3.0327e-08   a 2.194598181695531 4.906e-09 au q 1.724472520889329 6.7196e-08 au i 4.342962713932953 3.1194e-06 deg node 54.27982485799375 4.4004e-05 deg peri 268.7212462837347 4.4599e-05 deg M 335.0060589812048 7.6291e-06 deg tp 2459082.944784904702 (2020-Aug-21.44478490) 2.5152e-05 TDB period 1187.492702466315 3.25 3.9819e-06 1.09e-08 d yr n .3031597577419318 1.0166e-09 deg/d Q 2.664723842501733 5.9569e-09 au   Orbit Determination Parameters    # obs. used (total)      2795      data-arc span      24729 days (67.70 yr)      first obs. used      1952-11-16      last obs. used      2020-07-31      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .45765      source      ORB      producer      Otto Matic      solution date      2020-Aug-24 22:43:46   Additional Information  Earth MOID = .719082 au   Jupiter MOID = 2.6679 au   T_jup = 3.636  [ 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 12.9   n/a MPO265967   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. 2019-August); 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 [ show close-approach data ] 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 | Close-Approach Data ] 2020-Oct-24 18:50 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin