+ 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 13 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1644896693900294 5.2941e-08   a 2.675113494833251 1.9941e-08 au q 2.235084960487324 1.4507e-07 au i 3.269038429133764 5.1827e-06 deg node 287.2135346849685 0.00012431 deg peri 127.286822335978 0.00012664 deg M 182.5007205305928 2.2823e-05 deg tp 2459788.463025107743 (2022-Jul-27.96302511) 0.00010453 TDB period 1598.128679095165 4.38 1.7869e-05 4.892e-08 d yr n .2252634626417105 2.5188e-09 deg/d Q 3.115142029179179 2.3221e-08 au   Orbit Determination Parameters    # obs. used (total)      237      data-arc span      8062 days (22.07 yr)      first obs. used      1997-02-01      last obs. used      2019-02-28      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59197      source      ORB      producer      Otto Matic      solution date      2020-Feb-25 03:27:14   Additional Information  Earth MOID = 1.24848 au   Jupiter MOID = 2.23974 au   T_jup = 3.357  [ hide covariance matrix ] Orbital Elements at Epoch 2457152.5 (2015-May-10.0) TDB Reference: JPL 13 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1648534656059246 5.2594e-08   q 2.234129273240631 1.4395e-07 au tp 2456594.244994582647 (2013-Oct-28.74499458) 9.6545e-05 TDB node 287.2353500527297 0.00012431 deg peri 127.672327092475 0.00012664 deg i 3.269006158505924 5.183e-06 deg   Orbit Determination Parameters    # obs. used (total)      237      data-arc span      8062 days (22.07 yr)      first obs. used      1997-02-01      last obs. used      2019-02-28      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59197      source      ORB      producer      Otto Matic      solution date      2020-Feb-25 03:27:14   Additional Information  Jupiter MOID = 2.23974 au   T_jup = 3.357  Orbit Covariance (6×6)   e q tp node peri i e 2.766104710572146E-15 -7.52022866771427E-15 -2.415520664916952E-12 -3.4432463123307E-14 -6.113204769537751E-13 -4.134491369146855E-15 q -7.52022866771427E-15 2.072040232901494E-14 6.495704459486636E-12 9.290622969006434E-14 1.668148971738435E-12 1.159739579391915E-14 tp -2.415520664916952E-12 6.495704459486636E-12 9.320894100143363E-9 1.341437541828535E-11 2.395860427517908E-9 6.053796937880726E-12 node -3.4432463123307E-14 9.290622969006434E-14 1.341437541828535E-11 1.545354177105825E-8 -1.54242894493814E-8 1.742522943733313E-10 peri -6.113204769537751E-13 1.668148971738435E-12 2.395860427517908E-9 -1.54242894493814E-8 1.603711881246221E-8 -1.723083567049186E-10 i -4.134491369146855E-15 1.159739579391915E-14 6.053796937880726E-12 1.742522943733313E-10 -1.723083567049186E-10 2.686314034590513E-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 ] 2020-Sep-29 16:54 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin