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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03154195577641278 3.0562e-08  
a 2.855188749373744 1.222e-08 au
q 2.765130512107686 8.5372e-08 au
i 2.850063182435251 3.5733e-06 deg
node 57.04053471932638 6.6326e-05 deg
peri 225.6377477893356 8.915e-05 deg
M 169.0376369799431 6.0444e-05 deg
tp 2458173.069406405630
(2018-Feb-23.56940641)
0.00029591 TDB
period 1762.181600594176
4.82
1.1313e-05
3.097e-08
d
yr
n .2042922249776155 1.3116e-09 deg/d
Q 2.945246986639802 1.2606e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2936  
   data-arc span      23179 days (63.46 yr)  
   first obs. used      1956-10-29  
   last obs. used      2020-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43678  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:17:01  

Additional Information
 Earth MOID = 1.74965 au 
 Jupiter MOID = 2.08443 au 
 T_jup = 3.301 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456804.5 (2014-May-27.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03413630379659498 3.0589e-08  
q 2.756425600123226 8.5746e-08 au
tp 2456408.602248465070
(2013-Apr-26.10224847)
0.00027357 TDB
node 57.09208270554026 6.6411e-05 deg
peri 224.982431751948 8.6227e-05 deg
i 2.849850796349362 3.5701e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2936  
   data-arc span      23179 days (63.46 yr)  
   first obs. used      1956-10-29  
   last obs. used      2020-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43678  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:17:01  

Additional Information
 Jupiter MOID = 2.08443 au 
 T_jup = 3.301 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.356844255460647E-16 -2.599199419905602E-15 -3.863354216410542E-13 -1.43508419452459E-15 -8.051012348617168E-14 1.570566963305942E-16
q -2.599199419905602E-15 7.352300017228788E-15 9.477347516929442E-13 3.327596301943605E-15 2.037496163479604E-13 -3.159190655165951E-16
tp -3.863354216410542E-13 9.477347516929442E-13 7.483802680924576E-8 2.409196085954008E-11 1.505797047352536E-8 -4.006740720423355E-13
node -1.43508419452459E-15 3.327596301943605E-15 2.409196085954008E-11 4.410437657796913E-9 -4.399883615291392E-9 -1.005906335336075E-11
peri -8.051012348617168E-14 2.037496163479604E-13 1.505797047352536E-8 -4.399883615291392E-9 7.435157857479508E-9 9.971764450627279E-12
i 1.570566963305942E-16 -3.159190655165951E-16 -4.006740720423355E-13 -1.005906335336075E-11 9.971764450627279E-12 1.27453666757395E-11

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-August); 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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