+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   C/2020 F2 (ATLAS) Classification: Hyperbolic Comet          SPK-ID: 1003666 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] [ show orbit diagram ] Orbital Elements at Epoch 2458984.5 (2020-May-15.0) TDB Reference: JPL 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 1.001746814227473 0.00010157   a -5047.818173066495 293.59 au q 8.817600602409449 0.00019666 au i 163.573331613493 0.00029463 deg node 250.2491237953759 0.00018098 deg peri 48.36655517016037 0.0031099 deg M -.00217862101761643 0.00019012 deg tp 2459777.244375517509 (2022-Jul-16.74437552) 0.036549 TDB period n/a n/a n/a n/a d yr n 2.74820116660457E-6 2.3976e-07 deg/d Q n/a n/a au   Orbit Determination Parameters    # obs. used (total)      376      data-arc span      454 days (1.24 yr)      first obs. used      2019-05-27      last obs. used      2020-08-23      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      norm. resid. RMS      .41877      source      ORB      producer      Otto Matic      solution date      2020-Sep-02 22:14:13   Additional Information  Earth MOID = 7.84007 au   Jupiter MOID = 3.58911 au  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes comet total magnitude M1 6.5   0.6 16 from 352 observations, assumed slope, autocmod 2.8 comet total magnitude slope K1 7.5   n/a 16 autocmod 2.8 comet nuclear magnitude M2 8.9   0.3 16 from 7 observations, autocmod 2.8 comet nuclear magnitude slope K2 5.   n/a 16 autocmod 2.8 comet nuclear phase coefficient PC 0.03   n/a 16 autocmod 2.8 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] 2020-Nov-27 17:32 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin