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4655 Marjoriika (1978 RS)
Classification: Main-belt Asteroid          SPK-ID: 2004655
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 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1901846925867681 3.2286e-08  
a 2.2544578694784 6.5329e-09 au
q 1.82569449262183 7.3174e-08 au
i 1.915684169845446 3.8771e-06 deg
node 313.813726350811 9.6822e-05 deg
peri 47.31293970460732 9.7274e-05 deg
M 114.2463595001821 1.0435e-05 deg
tp 2458608.124861700316
(2019-May-04.62486170)
3.5001e-05 TDB
period 1236.407447956021
3.39
5.3742e-06
1.471e-08
d
yr
n .2911661528690542 1.2656e-09 deg/d
Q 2.683221246334969 7.7753e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2299  
   data-arc span      24479 days (67.02 yr)  
   first obs. used      1953-04-15  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45655  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:10:37  

Additional Information
 Earth MOID = .823259 au 
 Jupiter MOID = 2.773 au 
 T_jup = 3.600 
[ 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 13.3   n/a MPO337291  
diameter diameter 5.326 km 0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 9.624 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2013) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.327   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4655 Marjoriika (1978 RS)          Discovered 1978-Sep-01 by Chernykh, N. S. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1978 RS = 1985 WC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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