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2168 Swope (1955 RF1)
Classification: Main-belt Asteroid          SPK-ID: 2002168
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1548966619369556 4.5634e-08  
a 2.452093231606889 9.3253e-09 au
q 2.07227217527278 1.144e-07 au
i 4.744834977139499 4.8181e-06 deg
node 314.1192026509495 4.5677e-05 deg
peri 11.24233556827161 4.7607e-05 deg
M 232.0058972860964 1.6772e-05 deg
tp 2459099.144868467702
6.6783e-05 TDB
period 1402.503309465935
n .25668388628408 1.4643e-09 deg/d
Q 2.831914287940998 1.077e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2100  
   data-arc span      23250 days (63.66 yr)  
   first obs. used      1955-09-14  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46429  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 19:31:13  

Additional Information
 Earth MOID = 1.05959 au 
 Jupiter MOID = 2.48177 au 
 T_jup = 3.474 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.6   n/a MPO435717  
diameter diameter 8.205 km 0.058 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
geometric albedo albedo 0.263   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

2168 Swope (1955 RF1)          Discovered 1955-Sep-14 by Goethe Link Observatory at Brooklyn
Discovered by the Indiana Asteroid Program, Goethe Link Observatory, University of Indiana. This program was conceived and directed by F. K. Edmondson; the plates were blinked and measured astrometrically by B. Potter and, following her retirement, by D. Owings; and the photometry was performed under the direction of T. Gehrels. During the years 1947-1967, in which the plates were exposed, a large number of people participated in various aspects of the program.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1955 RF1 = 1955 SG2 = 1955 TO = 1974 QD = 1974 QK1 = 1978 UZ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
FirstGov 2019-Dec-14 18:50 UT
(server date/time)  
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