+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2019 AC77) Classification: TransNeptunian Object          SPK-ID: 54117593 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] [ show orbit diagram ] Orbital Elements at Epoch 2458846.5 (2019-Dec-29.0) TDB Reference: JPL 2 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .3857082978172277 0.054878   a 57.01381307408926 0.97111 au q 35.02311228121269 3.4365 au i 11.98013593288924 0.009407 deg node 162.901449697752 0.1825 deg peri 66.85836921168392 3.0262 deg M 255.3871161182388 10.725 deg tp 2504539.664032791501 (2145-Feb-04.16403279) 5011.1 TDB period 157241.9996603578 430.51 4017.4 11 d yr n .002289464651795315 5.8494e-05 deg/d Q 79.00451386696584 1.3457 au   Orbit Determination Parameters    # obs. used (total)      8      data-arc span      706 days (1.93 yr)      first obs. used      2019-01-11      last obs. used      2020-12-17      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      8      norm. resid. RMS      .074051      source      ORB      producer      Otto Matic      solution date      2021-Apr-15 21:03:15   Additional Information  Earth MOID = 34.0313 au   Jupiter MOID = 29.7062 au   T_jup = 6.066  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 6.60   .13273 E2021D90 autocmod 2.8 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] 2021-Apr-22 15:39 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin