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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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03163508088298733 3.0923e-08  
a 2.854268228788551 1.2414e-08 au
q 2.763973222509085 8.6714e-08 au
i 2.850554606606174 3.5849e-06 deg
node 57.04051044027796 6.9316e-05 deg
peri 224.9950664397311 9.1875e-05 deg
M 87.96203397447991 6.1004e-05 deg
tp 2458170.138547840005
(2018-Feb-20.63854784)
0.00029858 TDB
period 1761.329471105085
4.82
1.1491e-05
3.146e-08
d
yr
n .2043910613578336 1.3334e-09 deg/d
Q 2.944563235068018 1.2807e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2752  
   data-arc span      23049 days (63.10 yr)  
   first obs. used      1956-10-29  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44527  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 21:54:48  

Additional Information
 Earth MOID = 1.74791 au 
 Jupiter MOID = 2.08498 au 
 T_jup = 3.302 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456673.5 (2014-Jan-16.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03415585881647116 3.0935e-08  
q 2.756676636212915 8.7118e-08 au
tp 2456409.458150568254
(2013-Apr-26.95815057)
0.00027723 TDB
node 57.09499847825416 6.9414e-05 deg
peri 225.1682103811151 8.9079e-05 deg
i 2.849779539087462 3.581e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2752  
   data-arc span      23049 days (63.10 yr)  
   first obs. used      1956-10-29  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44527  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 21:54:48  

Additional Information
 Jupiter MOID = 2.08498 au 
 T_jup = 3.302 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.570035133474531E-16 -2.670165142339766E-15 -1.809005296174234E-13 -4.416598099587364E-16 -3.837127102364105E-14 1.48951518339036E-16
q -2.670165142339766E-15 7.589593550084119E-15 2.533698466897068E-13 7.322234899312722E-16 6.038219627110622E-14 -2.994198569732876E-16
tp -1.809005296174234E-13 2.533698466897068E-13 7.685498709343394E-8 1.431264050772151E-11 1.549129158056777E-8 -2.787631505666017E-13
node -4.416598099587364E-16 7.322234899312722E-16 1.431264050772151E-11 4.8183619129214E-9 -4.809280521596464E-9 -1.456066615649769E-11
peri -3.837127102364105E-14 6.038219627110622E-14 1.549129158056777E-8 -4.809280521596464E-9 7.935024409359171E-9 1.449240307047095E-11
i 1.48951518339036E-16 -2.994198569732876E-16 -2.787631505666017E-13 -1.456066615649769E-11 1.449240307047095E-11 1.282382989554893E-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-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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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1934-Jul-08 14:28 00:02 Europ 0.0481777253485371 0.0481722382056093 0.0481832138955365 3.04072920495692 3.0407291324052 2427627.103048006 2.16020239748027 495.841908615361 37.6612046649991 56.7877181613068 160122.389550068 T 36 CATAB v2.0f-lin.ifort 2019-Dec-13 21:55:06 2019-Dec-13 21:55

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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