+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2015 AJ44) Classification: Aten [NEO]          SPK-ID: 3703545 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .4762426199595674 4.3388e-07   a .8871741204892706 6.779e-09 au q .4646639929871355 3.8243e-07 au i 6.32283645569153 1.53e-05 deg node 117.0901267159457 2.9309e-05 deg peri 192.5347121686403 7.8221e-05 deg M 181.4450077572331 0.00013588 deg tp 2459351.884433592760 (2021-May-17.38443359) 0.00011417 TDB period 305.219111540138 0.84 3.4983e-06 9.578e-09 d yr n 1.179480531816757 1.3519e-08 deg/d Q 1.309684247991406 1.0008e-08 au   Orbit Determination Parameters    # obs. used (total)      58      data-arc span      1836 days (5.03 yr)      first obs. used      2015-01-14      last obs. used      2020-01-24      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      1      norm. resid. RMS      .55044      source      ORB      producer      Otto Matic      solution date      2021-Apr-15 12:17:33   Additional Information  Earth MOID = .0660297 au   Jupiter MOID = 3.95851 au   T_jup = 6.587  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 22.3   n/a MPCxxxxx   [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Apr-21 19:26 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin