+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   90852 (1996 GS4) Classification: Main-belt Asteroid          SPK-ID: 2090852 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1846079912086686 5.4687e-08   a 2.290514440935872 1.0338e-08 au q 1.867667171160254 1.2408e-07 au i 6.781081150845951 4.987e-06 deg node 58.85396437118628 4.4416e-05 deg peri 313.2569274189744 4.557e-05 deg M 173.8382999220117 1.1532e-05 deg tp 2458389.078165887097 (2018-Sep-27.57816589) 3.9446e-05 TDB period 1266.18737285968 3.47 8.5725e-06 2.347e-08 d yr n .284318109401882 1.9249e-09 deg/d Q 2.71336171071149 1.2247e-08 au   Orbit Determination Parameters    # obs. used (total)      607      data-arc span      8778 days (24.03 yr)      first obs. used      1996-04-11      last obs. used      2020-04-23      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5385      source      ORB      producer      Otto Matic      solution date      2020-May-20 16:35:28   Additional Information  Earth MOID = .876261 au   Jupiter MOID = 2.75953 au   T_jup = 3.567  [ hide covariance matrix ] Orbital Elements at Epoch 2457381.5 (2015-Dec-25.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1841383981527387 5.4725e-08   q 1.869013285780005 1.2408e-07 au tp 2457120.390939726000 (2015-Apr-07.89093973) 3.8526e-05 TDB node 58.92245288419309 4.4477e-05 deg peri 312.7860945729732 4.563e-05 deg i 6.776519385222042 4.9824e-06 deg   Orbit Determination Parameters    # obs. used (total)      607      data-arc span      8778 days (24.03 yr)      first obs. used      1996-04-11      last obs. used      2020-04-23      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5385      source      ORB      producer      Otto Matic      solution date      2020-May-20 16:35:28   Additional Information  Jupiter MOID = 2.75953 au   T_jup = 3.567  Orbit Covariance (6×6)   e q tp node peri i e 2.994822745023699E-15 -6.775258381265872E-15 -4.835187854524893E-14 -2.728648783212032E-14 -4.745550433065833E-15 -2.477760411662711E-15 q -6.775258381265872E-15 1.539652412091397E-14 1.160325092410783E-13 6.116454249632348E-14 1.470959282496226E-14 5.731667629089821E-15 tp -4.835187854524893E-14 1.160325092410783E-13 1.484283850643759E-9 9.841190121593237E-13 4.220245097945058E-10 -7.377958035483028E-13 node -2.728648783212032E-14 6.116454249632348E-14 9.841190121593237E-13 1.978229933536397E-9 -1.96376082535827E-9 -7.755442652706027E-11 peri -4.745550433065833E-15 1.470959282496226E-14 4.220245097945058E-10 -1.96376082535827E-9 2.082121366320231E-9 7.686995637749119E-11 i -2.477760411662711E-15 5.731667629089821E-15 -7.377958035483028E-13 -7.755442652706027E-11 7.686995637749119E-11 2.482474049328585E-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.2   n/a MPO359378   diameter diameter 2.443 km 0.795 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.118   0.088 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   90852 (1996 GS4)          Discovered 1996-Apr-11 by Spacewatch at Kitt Peak Reference: 20041028/Numbers.arc Last Updated: 2004-10-29 Alternate Designations  1996 GS4 = 2001 XV18  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Dec-01 19:48 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin