+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   C/1908 R1 (Morehouse) Classification: Hyperbolic Comet          SPK-ID: 1000965 [ Ephemeris | Orbit Diagram | Orbital Elements ] [ show orbit diagram ] Orbital Elements at Epoch 2418251.5 (1908-Nov-06.0) TDB Reference: JPL 4 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 1.00065269398285 0.00012879   a -1448.24915314996 285.64 au q .9452635079285149 7.848e-05 au i 140.1752928975709 0.00061262 deg node 104.4582667991883 0.00044952 deg peri 171.5974008124759 0.0080024 deg M -.0008987656028126364 0.00026581 deg tp 2418301.758242077687 (1908-Dec-26.25824208) 0.0048809 TDB period n/a n/a n/a n/a d yr n 1.788294945579998E-5 5.2906e-06 deg/d Q n/a n/a au   Orbit Determination Parameters    # obs. used (total)      54      data-arc span      88 days      first obs. used      1908-09-12      last obs. used      1908-12-09      planetary ephem.      DE431      SB-pert. ephem.      SB431-BIG16      norm. resid. RMS      1.6325      source      ORB      producer      Otto Matic      solution date      2014-Jun-13 19:42:20   Additional Information  Earth MOID = .064906 au  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements ] no physical parameters available [ Ephemeris | Orbit Diagram | Orbital Elements ] 2021-Jan-26 14:09 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin