+ 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 2458980.5 (2020-May-11.0) TDB Reference: JPL 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 1.001708569519404 0.00011098   a -5160.855101150061 335.33 au q 8.817679719885136 0.000217 au i 163.5732840956141 0.00030416 deg node 250.2490972707082 0.00018446 deg peri 48.36538973714126 0.0034005 deg M -.002118044232982084 0.00020649 deg tp 2459777.234182775747 (2022-Jul-16.73418278) 0.038793 TDB period n/a n/a n/a n/a d yr n 2.658407633023874E-6 2.591e-07 deg/d Q n/a n/a au   Orbit Determination Parameters    # obs. used (total)      364      data-arc span      425 days (1.16 yr)      first obs. used      2019-05-27      last obs. used      2020-07-25      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      norm. resid. RMS      .41994      source      ORB      producer      Otto Matic      solution date      2020-Aug-06 07:15:24   Additional Information  Earth MOID = 7.84018 au   Jupiter MOID = 3.58921 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 12 from 340 observations, assumed slope, autocmod 2.8 comet total magnitude slope K1 7.5   n/a 12 autocmod 2.8 comet nuclear magnitude M2 8.9   0.3 12 from 7 observations, autocmod 2.8 comet nuclear magnitude slope K2 5.   n/a 12 autocmod 2.8 comet nuclear phase coefficient PC 0.03   n/a 12 autocmod 2.8 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] 2020-Aug-11 07:31 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin