+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   6291 Renzetti (1985 TM1) Classification: Main-belt Asteroid          SPK-ID: 2006291 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 34 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2136482335206559 3.6241e-08   a 2.481776540404649 1.0981e-08 au q 1.951549366554191 9.0621e-08 au i 11.49585803264624 4.7038e-06 deg node 21.14824923924215 2.2798e-05 deg peri 32.52947402359219 2.6862e-05 deg M 283.8223076645464 1.7407e-05 deg tp 2459302.681415293088 (2021-Mar-29.18141529) 7.0176e-05 TDB period 1428.046796514498 3.91 9.4776e-06 2.595e-08 d yr n .2520925790938149 1.6731e-09 deg/d Q 3.012003714255107 1.3327e-08 au   Orbit Determination Parameters    # obs. used (total)      1629      data-arc span      23414 days (64.10 yr)      first obs. used      1956-05-08      last obs. used      2020-06-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .4614      source      ORB      producer      Otto Matic      solution date      2020-Jun-23 16:29:35   Additional Information  Earth MOID = .971366 au   Jupiter MOID = 2.43209 au   T_jup = 3.419  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.2   n/a MPO435759   diameter diameter 4.934 km 0.167 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.417   0.053 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   6291 Renzetti (1985 TM1)          Discovered 1985-Oct-15 by Bowell, E. at Flagstaff Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1985 TM1 = 1989 TA  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Jul-16 14:56 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin