+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   70022 (1999 AF7) Classification: Outer Main-belt Asteroid          SPK-ID: 2070022 [ 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 30 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .0300468834944837 4.1595e-08   a 3.223086069350157 2.3117e-08 au q 3.126242377731699 1.4578e-07 au i 12.79346551381571 3.1632e-06 deg node 285.6713898410392 2.0211e-05 deg peri 161.0499000095371 7.7776e-05 deg M 319.080475914131 7.3891e-05 deg tp 2459440.733934830660 (2021-Aug-14.23393483) 0.0004335 TDB period 2113.519608819296 5.79 2.2738e-05 6.225e-08 d yr n .1703319895863714 1.8325e-09 deg/d Q 3.319929760968614 2.3811e-08 au   Orbit Determination Parameters    # obs. used (total)      1556      data-arc span      8096 days (22.17 yr)      first obs. used      1999-01-09      last obs. used      2021-03-10      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .44269      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 12:46:32   Additional Information  Earth MOID = 2.14494 au   Jupiter MOID = 1.83491 au   T_jup = 3.149  [ 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 13.33   n/a E2021B10   diameter diameter 12.164 km 0.141 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.075   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   70022 (1999 AF7)          Discovered 1999-Jan-09 by Korlevic, K. at Visnjan Reference: 20031109/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1999 AF7 = 2002 OT2  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-20 02:20 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin