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JPL Small-Body Database Browser
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3989 Odin (1986 RM)
Classification: Main-belt Asteroid          SPK-ID: 2003989
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1862142390152384 4.5029e-08  
a 2.257381331404247 8.1117e-09 au
q 1.837024784609599 1.0021e-07 au
i 3.473137488940506 4.5581e-06 deg
node 327.4605964844988 7.0504e-05 deg
peri 52.41113897118469 7.1636e-05 deg
M 317.1250131295534 1.5008e-05 deg
tp 2459148.039164515428
(2020-Oct-25.53916452)
5.2147e-05 TDB
period 1238.813189285554
3.39
6.6773e-06
1.828e-08
d
yr
n .2906007161641688 1.5664e-09 deg/d
Q 2.677737878198894 9.6222e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1772  
   data-arc span      25396 days (69.53 yr)  
   first obs. used      1949-12-22  
   last obs. used      2019-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50105  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:01:09  

Additional Information
 Earth MOID = .841664 au 
 Jupiter MOID = 2.79511 au 
 T_jup = 3.597 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.8   n/a MPO473821  
diameter diameter 3.774 km 0.093 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.411   0.085 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

3989 Odin (1986 RM)          Discovered 1986-Sep-08 by Jensen, P. at Brorfelde
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1986 RM = 1952 RD = 1952 SO1 = 1959 UF = 1969 QO = 1976 WW 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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