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1151 Ithaka (1929 RK)
Classification: Main-belt Asteroid          SPK-ID: 2001151
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2773562581717358 4.2656e-08  
a 2.405099030534422 6.998e-09 au
q 1.738029762892926 1.0156e-07 au
i 6.559422632238651 5.8469e-06 deg
node 225.4644150397374 3.4609e-05 deg
peri 122.2932159412846 3.5834e-05 deg
M 54.23163213879306 8.989e-06 deg
tp 2457195.266597130365
(2015-Jun-21.76659713)
3.386e-05 JED
period 1362.378783732342
3.73
5.9461e-06
1.628e-08
d
yr
n .2642436922085297 1.1533e-09 deg/d
Q 3.072168298175919 8.9389e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1435  
   data-arc span      31511 days (86.27 yr)  
   first obs. used      1929-09-08  
   last obs. used      2015-12-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51699  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 12:37:22  

Additional Information
 Earth MOID = .740945 au 
 Jupiter MOID = 2.39822 au 
 T_jup = 3.461 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.2 mag n/a MPO347524  
rotation period rot_per 4.93115 h n/a LCDB (Rev. 2015-December); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2011) http://www.asu.cas.cz/~ppravec/neo.htm]
[Aymami, J.M. (2012) Minor Planet Bul. 39, 29.]
[Franco, L.; Ferrero, A.; Durkee, R.I. (2012) Minor Planet Bul. 39, 47-48.]

1151 Ithaka (1929 RK)          Discovered 1929-Sep-08 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1929 RK = 1966 LA 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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