Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
2168 Swope (1955 RF1)
Classification: Main-belt Asteroid          SPK-ID: 2002168
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1548691676826143 4.4889e-08  
a 2.453485480879323 8.5997e-09 au
q 2.073516226534163 1.1289e-07 au
i 4.745499014045717 4.5598e-06 deg
node 314.0991733125413 4.3896e-05 deg
peri 11.00947315619645 4.5537e-05 deg
M 334.8767530666801 1.469e-05 deg
tp 2459098.459583854261
(2020-Sep-05.95958385)
5.7499e-05 TDB
period 1403.697948801471
3.84
7.3801e-06
2.021e-08
d
yr
n .2564654314038011 1.3484e-09 deg/d
Q 2.833454735224482 9.9315e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2308  
   data-arc span      23654 days (64.76 yr)  
   first obs. used      1955-09-14  
   last obs. used      2020-06-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46007  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:41:44  

Additional Information
 Earth MOID = 1.06166 au 
 Jupiter MOID = 2.48171 au 
 T_jup = 3.473 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.7   n/a MPO473794  
diameter diameter 8.205 km 0.058 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.263   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-12 19:14 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin