+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   215810 (2004 RZ290) Classification: Main-belt Asteroid          SPK-ID: 2215810 [ 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 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1644896720136706 4.9967e-08   a 2.675113495588874 1.961e-08 au q 2.235084954100116 1.383e-07 au i 3.269035911277677 4.3624e-06 deg node 287.2134667058245 0.00010308 deg peri 127.2868864766117 0.00010434 deg M 182.5007232811068 1.7763e-05 deg tp 2459788.463013231390 (2022-Jul-27.96301323) 8.414e-05 TDB period 1598.128679772286 4.38 1.7573e-05 4.811e-08 d yr n .2252634625462674 2.4769e-09 deg/d Q 3.115142037077631 2.2836e-08 au   Orbit Determination Parameters    # obs. used (total)      271      data-arc span      8543 days (23.39 yr)      first obs. used      1997-02-01      last obs. used      2020-06-23      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59704      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 03:39:49   Additional Information  Earth MOID = 1.24848 au   Jupiter MOID = 2.23974 au   T_jup = 3.357  [ hide covariance matrix ] Orbital Elements at Epoch 2457642.5 (2016-Sep-11.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1649142848907094 4.9875e-08   q 2.233784391857847 1.3802e-07 au tp 2458191.577467312411 (2018-Mar-14.07746731) 7.407e-05 TDB node 287.2261358901724 0.00010309 deg peri 127.5627921766099 0.00010435 deg i 3.269025515923633 4.3624e-06 deg   Orbit Determination Parameters    # obs. used (total)      271      data-arc span      8543 days (23.39 yr)      first obs. used      1997-02-01      last obs. used      2020-06-23      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59704      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 03:39:49   Additional Information  Jupiter MOID = 2.23974 au   T_jup = 3.357  Orbit Covariance (6×6)   e q tp node peri i e 2.487540665371428E-15 -6.837713312098666E-15 -1.454780307239267E-12 8.863092821876932E-15 -3.387906764223474E-13 -1.777940690151112E-15 q -6.837713312098666E-15 1.905086746142857E-14 4.476195933009893E-12 -2.625581889253102E-14 1.01450432524083E-12 5.319383939038265E-15 tp -1.454780307239267E-12 4.476195933009893E-12 5.48631976897831E-9 -2.449807084028567E-11 1.24346971789301E-9 2.759935656157287E-12 node 8.863092821876932E-15 -2.625581889253102E-14 -2.449807084028567E-11 1.062716380588406E-8 -1.061525431858297E-8 -1.902910187134287E-11 peri -3.387906764223474E-13 1.01450432524083E-12 1.24346971789301E-9 -1.061525431858297E-8 1.088987823587343E-8 1.96023581099215E-11 i -1.777940690151112E-15 5.319383939038265E-15 2.759935656157287E-12 -1.902910187134287E-11 1.96023581099215E-11 1.903041451413248E-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 16.5   n/a MPO470317   215810 (2004 RZ290)          Discovered 2004-Sep-09 by Spacewatch at Kitt Peak Reference: 20090607/Numbers.arc Last Updated: 2009-06-08 [ show close-approach data ] Alternate Designations  2004 RZ290 = 1997 CH8  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-18 23:19 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin