+ 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 2459021.5 (2020-Jun-21.0) TDB Reference: JPL 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 1.001892805468253 2.6092e-05   a -4658.351205491995 64.252 au q 8.817352634798153 0.0001408 au i 163.5735700875102 0.00015322 deg node 250.2492835251749 0.00011353 deg peri 48.36973685580374 0.0022266 deg M -.002342822255606454 4.8522e-05 deg tp 2459777.259489735596 (2022-Jul-16.75948974) 0.03143 TDB period n/a n/a n/a n/a d yr n 3.099957443374075E-6 6.4136e-08 deg/d Q n/a n/a au   Orbit Determination Parameters    # obs. used (total)      429      data-arc span      662 days (1.81 yr)      first obs. used      2019-05-27      last obs. used      2021-03-19      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      norm. resid. RMS      .40845      source      ORB      producer      Otto Matic      solution date      2021-Apr-15 23:34:04   Additional Information  Earth MOID = 7.8391 au   Jupiter MOID = 3.58854 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 6.4   0.5 19 from 406 observations, assumed slope, autocmod 2.9c comet total magnitude slope K1 7.5   n/a 19 autocmod 2.9c comet nuclear magnitude M2 8.9   0.3 19 from 7 observations, autocmod 2.9c comet nuclear magnitude slope K2 5.   n/a 19 autocmod 2.9c comet nuclear phase coefficient PC 0.03   n/a 19 autocmod 2.9c [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] 2021-Apr-22 11:01 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin