+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1847380224763311 5.4703e-08   a 2.290313305627354 1.007e-08 au q 1.867205354694528 1.241e-07 au i 6.781395506993684 4.9786e-06 deg node 58.8519020878591 4.3005e-05 deg peri 313.2457140802676 4.4118e-05 deg M 230.7290524508168 1.0811e-05 deg tp 2459655.110228060503 (2022-Mar-16.61022806) 3.902e-05 TDB period 1266.020596310043 3.47 8.3495e-06 2.286e-08 d yr n .2843555634475929 1.8754e-09 deg/d Q 2.71342125656018 1.193e-08 au   Orbit Determination Parameters    # obs. used (total)      615      data-arc span      8778 days (24.03 yr)      first obs. used      1996-04-11      last obs. used      2020-04-23      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .53531      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 14:42:14   Additional Information  Earth MOID = .874391 au   Jupiter MOID = 2.76062 au   T_jup = 3.567  [ hide covariance matrix ] Orbital Elements at Epoch 2457420.5 (2016-Feb-02.0) TDB Reference: JPL 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1841216632710024 5.4723e-08   q 1.869108141213379 1.2404e-07 au tp 2457120.408010913778 (2015-Apr-07.90801091) 3.65e-05 TDB node 58.92141080945513 4.3065e-05 deg peri 312.7973517595595 4.4181e-05 deg i 6.776430842019603 4.9737e-06 deg   Orbit Determination Parameters    # obs. used (total)      615      data-arc span      8778 days (24.03 yr)      first obs. used      1996-04-11      last obs. used      2020-04-23      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .53531      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 14:42:14   Additional Information  Jupiter MOID = 2.76062 au   T_jup = 3.567  Orbit Covariance (6×6)   e q tp node peri i e 2.994625456059405E-15 -6.773205651861965E-15 -4.35425658778513E-14 -2.891316090415971E-14 -1.966588437726484E-15 -2.526202891470377E-15 q -6.773205651861965E-15 1.538505113917194E-14 8.313525740420086E-14 6.515133812416575E-14 3.1460588696842E-15 5.846418714143488E-15 tp -4.35425658778513E-14 8.313525740420086E-14 1.332268898043642E-9 2.023036522346831E-12 3.863812891136098E-10 -5.998069012621376E-13 node -2.891316090415971E-14 6.515133812416575E-14 2.023036522346831E-12 1.854573405414534E-9 -1.840775860758575E-9 -8.083526710094187E-11 peri -1.966588437726484E-15 3.1460588696842E-15 3.863812891136098E-10 -1.840775860758575E-9 1.951929048686565E-9 8.015659969188316E-11 i -2.526202891470377E-15 5.846418714143488E-15 -5.998069012621376E-13 -8.083526710094187E-11 8.015659969188316E-11 2.47375824731215E-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 16.24   n/a E2021B10   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 ] 2021-Apr-18 01:01 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin