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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 ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1861103498187967 1.0601e-08  
a 2.256999235772901 4.7832e-09 au
q 1.83694831846245 2.4984e-08 au
i 3.473274952625228 6.1293e-07 deg
node 327.4603580550398 1.5772e-05 deg
peri 52.45941289459923 1.602e-05 deg
M 15.21583597531435 4.6883e-06 deg
tp 2459148.153353793909
(2020-Oct-25.65335379)
1.6127e-05 TDB
period 1238.498671040227
3.39
3.9371e-06
1.078e-08
d
yr
n .2906745145698321 9.2404e-10 deg/d
Q 2.677050153083353 5.6735e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2539  
   data-arc span      26023 days (71.25 yr)  
   first obs. used      1949-12-22  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44083  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:20:48  

Additional Information
 Earth MOID = .840244 au 
 Jupiter MOID = 2.79691 au 
 T_jup = 3.597 
[ 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 13.91   n/a MPCxxxxx  
diameter diameter 3.774 km 0.093 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 5.3229 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2020) http://www.asu.cas.cz/~ppravec/neo.htm]
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

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 ]
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