+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   6915 (1992 HH) Classification: Main-belt Asteroid          SPK-ID: 2006915 [ 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 38 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1249613569017552 3.9944e-08   a 2.603711937773924 1.0716e-08 au q 2.278348561048396 1.0465e-07 au i 12.0255373547049 3.377e-06 deg node 97.61566097791146 1.8412e-05 deg peri 116.8038805418972 2.1708e-05 deg M 251.2174061200471 1.2862e-05 deg tp 2459464.208159324919 (2021-Sep-06.70815932) 5.5991e-05 TDB period 1534.573973674426 4.20 9.4732e-06 2.594e-08 d yr n .2345927965518704 1.4482e-09 deg/d Q 2.929075314499452 1.2055e-08 au   Orbit Determination Parameters    # obs. used (total)      2759      data-arc span      15237 days (41.72 yr)      first obs. used      1979-02-28      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .39449      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 02:28:52   Additional Information  Earth MOID = 1.29829 au   Jupiter MOID = 2.13794 au   T_jup = 3.371  [ hide covariance matrix ] Orbital Elements at Epoch 2457157.5 (2015-May-15.0) TDB Reference: JPL 38 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1254649778646154 3.9915e-08   q 2.276268966490849 1.0459e-07 au tp 2456397.493660138055 (2013-Apr-14.99366014) 5.0763e-05 TDB node 97.66428931619113 1.8422e-05 deg peri 117.0782657299917 2.169e-05 deg i 12.02370959618804 3.3758e-06 deg   Orbit Determination Parameters    # obs. used (total)      2759      data-arc span      15237 days (41.72 yr)      first obs. used      1979-02-28      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .39449      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 02:28:52   Additional Information  Jupiter MOID = 2.13794 au   T_jup = 3.371  Orbit Covariance (6×6)   e q tp node peri i e 1.593187837879244E-15 -4.157750828525815E-15 -2.551966911696966E-14 5.368963220235999E-15 2.1710698078581E-14 -3.632692257776349E-15 q -4.157750828525815E-15 1.093802858307693E-14 1.094729474203715E-13 -1.302965924514526E-14 -3.939389578489584E-14 9.908180877085842E-15 tp -2.551966911696966E-14 1.094729474203715E-13 2.576892951664907E-9 7.733698908479832E-12 5.988033746690527E-10 2.288353573933261E-13 node 5.368963220235999E-15 -1.302965924514526E-14 7.733698908479832E-12 3.39356693542403E-10 -3.296363450423512E-10 -1.825574228488789E-11 peri 2.1710698078581E-14 -3.939389578489584E-14 5.988033746690527E-10 -3.296363450423512E-10 4.704625860822566E-10 1.792083369397303E-11 i -3.632692257776349E-15 9.908180877085842E-15 2.288353573933261E-13 -1.825574228488789E-11 1.792083369397303E-11 1.139576181221616E-11 [ 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 13.0   n/a MPO416788   diameter diameter 7.098 km 1.686 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 4.76345 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Behrend, R. (2013) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.] [Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.] [McNeill, A.; Mommert, M.; Trilling, D.E.; Llama, J.; Skiff, B. (2019) Ap. J. Suppl. Series 245, id.29.] [Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.] geometric albedo albedo 0.320   0.139 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   6915 (1992 HH)          Discovered 1992-Apr-30 by Kushida, Y., Muramatsu, O. at Yatsugatake Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1992 HH = 1979 DG = 1988 LN = 2001 OS82  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-26 03:50 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin