+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   70174 (1999 PJ3) Classification: Main-belt Asteroid          SPK-ID: 2070174 [ 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 .1883905320558295 2.8151e-08   a 2.362617622390494 8.131e-09 au q 1.91752283146387 6.7315e-08 au i 2.606467778179804 4.0345e-06 deg node 8.003241597387831 7.2592e-05 deg peri 256.4306892865697 7.3415e-05 deg M 5.486742836471862 1.0934e-05 deg tp 2459180.283745796312 (2020-Nov-26.78374580) 4.0264e-05 TDB period 1326.442979056721 3.63 6.8475e-06 1.875e-08 d yr n .2714025447637473 1.4011e-09 deg/d Q 2.807712413317117 9.6628e-09 au   Orbit Determination Parameters    # obs. used (total)      966      data-arc span      9622 days (26.34 yr)      first obs. used      1994-01-17      last obs. used      2020-05-22      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .4885      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 12:47:56   Additional Information  Earth MOID = .902156 au   Jupiter MOID = 2.27847 au   T_jup = 3.525  [ 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 15.72   n/a E2021B10   diameter diameter 1.735 km 0.378 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.281   0.129 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   70174 (1999 PJ3)          Discovered 1999-Aug-11 by Broughton, J. at Reedy Creek Reference: 20031109/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1999 PJ3 = 2002 ET40  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-20 02:21 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin