+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   78547 (2002 RZ122) Classification: Main-belt Asteroid          SPK-ID: 2078547 [ 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 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1377480218239422 4.8312e-08   a 2.755624171465665 1.6565e-08 au q 2.37604239295603 1.3485e-07 au i 12.61706795198229 5.471e-06 deg node 27.59449927206484 2.0053e-05 deg peri 343.2696426292759 2.5645e-05 deg M 346.2831561905601 1.6957e-05 deg tp 2459264.161973568020 (2021-Feb-18.66197357) 7.8945e-05 TDB period 1670.815152733235 4.57 1.5066e-05 4.125e-08 d yr n .2154636911277033 1.9429e-09 deg/d Q 3.1352059499753 1.8847e-08 au   Orbit Determination Parameters    # obs. used (total)      770      data-arc span      9958 days (27.26 yr)      first obs. used      1993-10-09      last obs. used      2021-01-13      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .58915      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 13:37:20   Additional Information  Earth MOID = 1.37832 au   Jupiter MOID = 2.33208 au   T_jup = 3.295  [ 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 15.02   n/a E2020-QM9   78547 (2002 RZ122)          Discovered 2002-Sep-08 by NEAT at Haleakala Reference: 20040415/Numbers.arc Last Updated: 2004-04-19 [ 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 1950-May-14 17:58 00:01 Cybel 0.0428853930172981 0.0428758093602403 0.0428949776680158 4.81435302167638 4.81435299221394 2433416.248578124 1.41599929359483 578.677827298743 39.4330476323895 -34.441397158557 92433.8890143291 T 19 CATAB v2.0f-lin.ifort 2021-Apr-13 13:37:22 2021-Apr-13 13:37 Alternate Designations  2002 RZ122 = 1993 TU23  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-17 21:51 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin