+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   102173 (1999 RQ233) Classification: Main-belt Asteroid          SPK-ID: 2102173 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .138411527850327 5.5005e-08   a 2.402802881326217 9.2592e-09 au q 2.070227263398687 1.3028e-07 au i 6.881090075819101 4.3871e-06 deg node 77.05593661922391 3.8504e-05 deg peri 329.3543562554814 4.0833e-05 deg M 213.2962414053831 1.3212e-05 deg tp 2459754.888717084727 (2022-Jun-24.38871708) 5.1023e-05 TDB period 1360.428253934491 3.72 7.8636e-06 2.153e-08 d yr n .2646225546689765 1.5296e-09 deg/d Q 2.735378499253747 1.0541e-08 au   Orbit Determination Parameters    # obs. used (total)      693      data-arc span      7584 days (20.76 yr)      first obs. used      1999-09-04      last obs. used      2020-06-09      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .56521      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 19:56:19   Additional Information  Earth MOID = 1.08283 au   Jupiter MOID = 2.62821 au   T_jup = 3.502  [ hide covariance matrix ] Orbital Elements at Epoch 2457551.5 (2016-Jun-12.0) TDB Reference: JPL 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1376032753314285 5.476e-08   q 2.073345224806724 1.2942e-07 au tp 2457034.545226871543 (2015-Jan-12.04522687) 4.8448e-05 TDB node 77.08077048077728 3.8519e-05 deg peri 329.628003170825 4.0902e-05 deg i 6.878618502770673 4.3851e-06 deg   Orbit Determination Parameters    # obs. used (total)      693      data-arc span      7584 days (20.76 yr)      first obs. used      1999-09-04      last obs. used      2020-06-09      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .56521      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 19:56:19   Additional Information  Jupiter MOID = 2.62821 au   T_jup = 3.502  Orbit Covariance (6×6)   e q tp node peri i e 2.998676333686117E-15 -7.074508987685607E-15 -1.010155986393252E-12 -1.87032096391988E-15 -3.444602587796015E-13 -2.393265185724851E-16 q -7.074508987685607E-15 1.675006381996036E-14 2.435192780623851E-12 4.408608779323702E-15 8.309307736726243E-13 5.491325494041927E-16 tp -1.010155986393252E-12 2.435192780623851E-12 2.347212290563265E-9 -4.710007322569728E-12 6.889664412817511E-10 1.420027114953526E-13 node -1.87032096391988E-15 4.408608779323702E-15 -4.710007322569728E-12 1.483728393544292E-9 -1.47401570115619E-9 -8.609598760720866E-11 peri -3.444602587796015E-13 8.309307736726243E-13 6.889664412817511E-10 -1.47401570115619E-9 1.672954548667328E-9 8.552092985036123E-11 i -2.393265185724851E-16 5.491325494041927E-16 1.420027114953526E-13 -8.609598760720866E-11 8.552092985036123E-11 1.922894405862887E-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 16.15   n/a E2021B55   102173 (1999 RQ233)          Discovered 1999-Sep-08 by CSS at Catalina Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-13 02:41 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin