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JPL Small-Body Database Browser
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5139 Rumoi (1990 VH4)
Classification: Main-belt Asteroid          SPK-ID: 2005139
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03163507780211439 3.2447e-08  
a 2.854268230389293 1.3369e-08 au
q 2.763973232852824 9.2727e-08 au
i 2.850554595284908 3.5875e-06 deg
node 57.04051687915116 7.7876e-05 deg
peri 224.9950537636779 0.00010039 deg
M 87.96203962739601 6.358e-05 deg
tp 2458170.138519820615
(2018-Feb-20.63851982)
0.00031149 TDB
period 1761.329472586779
4.82
1.2374e-05
3.388e-08
d
yr
n .2043910611858925 1.436e-09 deg/d
Q 2.944563227925761 1.3791e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2573  
   data-arc span      22964 days (62.87 yr)  
   first obs. used      1956-10-29  
   last obs. used      2019-09-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45851  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 00:49:08  

Additional Information
 Earth MOID = 1.74791 au 
 Jupiter MOID = 2.08498 au 
 T_jup = 3.302 
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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 12.0   n/a MPO332867  
diameter diameter 11.956 km 0.280 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.257 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Cooney, Jr.; W.R.; Gross, J.; Terrell, D.; Reddy, V.; Dyvig, R. (2007) Minor Planet Bull. 34, 47-48.]
geometric albedo albedo 0.409   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

5139 Rumoi (1990 VH4)          Discovered 1990-Nov-13 by Mukai and Takeishi at Kagoshima
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1990 VH4 = 1956 UM = 1959 JH = 1973 FG2 = 1989 QK1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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