+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   78548 (2002 RM126) Classification: Main-belt Asteroid          SPK-ID: 2078548 [ 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 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1850699367489455 8.3405e-08   a 2.567307635117178 1.7921e-08 au q 2.092176173470957 2.0354e-07 au i 6.01269934238903 5.0663e-06 deg node 56.66778513358104 4.6392e-05 deg peri 300.5292910654971 4.8714e-05 deg M 144.8836259223792 2.2187e-05 deg tp 2458595.810954573277 (2019-Apr-22.31095457) 8.8386e-05 TDB period 1502.502818850252 4.11 1.5732e-05 4.307e-08 d yr n .2396002160418441 2.5087e-09 deg/d Q 3.042439096763399 2.1237e-08 au   Orbit Determination Parameters    # obs. used (total)      592      data-arc span      8229 days (22.53 yr)      first obs. used      1998-08-26      last obs. used      2021-03-07      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .5188      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 13:37:20   Additional Information  Earth MOID = 1.09465 au   Jupiter MOID = 2.42373 au   T_jup = 3.400  [ 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 15.18   n/a E2020-QM9   diameter diameter 2.573 km 0.772 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.243   0.161 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   78548 (2002 RM126)          Discovered 2002-Sep-09 by NEAT at Palomar 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 1961-Nov-05 12:31 00:01 Juno 0.0495724318072334 0.0495535763698979 0.0495912882870334 7.47041052907781 7.47041049622585 2437609.021737499 1.19650138179551 1006.12570122321 46.6011934741807 20.9135306650053 57202.2977744379 T 20 CATAB v2.0f-lin.ifort 2021-Apr-13 13:37:22 2021-Apr-13 13:37 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-17 19:53 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin