+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   20907 (2762 P-L) Classification: Main-belt Asteroid          SPK-ID: 2020907 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2410635788358942 4.1237e-08   a 3.145018390084051 1.8902e-08 au q 2.386869001465687 1.3172e-07 au i 2.728343001248462 4.3624e-06 deg node 81.66408726870397 9.2427e-05 deg peri 297.3020771434509 9.2802e-05 deg M 224.4077340882983 1.1306e-05 deg tp 2459767.800760045834 (2022-Jul-07.30076005) 6.9075e-05 TDB period 2037.197857556135 5.58 1.8366e-05 5.028e-08 d yr n .1767133215189336 1.5931e-09 deg/d Q 3.903167778702414 2.3458e-08 au   Orbit Determination Parameters    # obs. used (total)      942      data-arc span      21877 days (59.90 yr)      first obs. used      1960-09-24      last obs. used      2020-08-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51768      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 02:00:00   Additional Information  Earth MOID = 1.39075 au   Jupiter MOID = 1.56022 au   T_jup = 3.162  [ 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 14.6   n/a MPO395203   diameter diameter 6.709 km 0.390 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.068   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   20907 (2762 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar Reference: 20010109/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  2762 P-L = 1999 RQ49  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-25 08:19 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin