+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (A/2020 H9) Classification: TransNeptunian Object          SPK-ID: 54017224 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] [ show orbit diagram ] Orbital Elements at Epoch 2459003.5 (2020-Jun-03.0) TDB Reference: JPL 7 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .9924559828191288 0.00010207   a 341.7090247449237 4.6256 au q 2.577858753534435 2.1453e-05 au i 137.8521665460203 0.00048603 deg node 213.1219419169878 0.00011362 deg peri 312.8177324267962 0.0011769 deg M .02572907984385644 0.00052332 deg tp 2458838.605999641064 (2019-Dec-21.10599964) 0.0058761 TDB period 2307188.616517559 6316.74 46847 128.3 d yr n .0001560340569568947 3.1682e-06 deg/d Q 680.840190736313 9.2162 au   Orbit Determination Parameters    # obs. used (total)      48      data-arc span      91 days      first obs. used      2020-04-22      last obs. used      2020-07-22      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      norm. resid. RMS      .4967      source      ORB      producer      Otto Matic      solution date      2020-Aug-26 08:27:29   Additional Information  Earth MOID = 1.71595 au   Jupiter MOID = 1.95373 au   T_jup = -1.458  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 17.701   .34049 7 autocmod 2.8 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] 2021-Mar-01 20:49 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin