+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   102160 (1999 RG216) Classification: Main-belt Asteroid          SPK-ID: 2102160 [ 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 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .138850777337383 4.769e-08   a 2.298657720299377 6.5872e-09 au q 1.979487309003232 1.094e-07 au i 4.115090315116642 2.939e-06 deg node 125.6130604328673 7.0134e-05 deg peri 255.1763930772885 7.095e-05 deg M 19.77453127387219 1.0377e-05 deg tp 2459130.578041254093 (2020-Oct-08.07804125) 3.6672e-05 TDB period 1272.945730035372 3.49 5.4718e-06 1.498e-08 d yr n .2828086001671072 1.2157e-09 deg/d Q 2.617828131595522 7.5018e-09 au   Orbit Determination Parameters    # obs. used (total)      1191      data-arc span      8332 days (22.81 yr)      first obs. used      1998-04-21      last obs. used      2021-02-11      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .51066      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:40:38   Additional Information  Earth MOID = .98529 au   Jupiter MOID = 2.84378 au   T_jup = 3.577  [ show covariance matrix ] [ 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 15.68   n/a E2021B55   102160 (1999 RG216)          Discovered 1999-Sep-04 by LONEOS at Anderson Mesa Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ hide close-approach data ] Close-Approach Data   ...sorted by Date/Time (TDB) Date/Time (TDB) Time Uncertainty (days_HH:MM) Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified 2002-Nov-26 03:14 < 00:01 Hebe 0.0195700555476992 0.0195691584142602 0.0195709527371441 4.21026500902252 4.21026493357308 2452604.634735465 0.562194797333725 76.3844853691343 24.0861851087428 58.6880683829798 105674.442095305 T 25 CATAB v2.0f-lin.ifort 2021-Apr-13 15:40:41 2021-Apr-13 15:40 Alternate Designations  1999 RG216 = 2001 FM124  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-14 21:38 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin