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59908 (1999 RS154)
Classification: Outer Main-belt Asteroid          SPK-ID: 2059908
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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05957756105241466 3.8632e-08  
a 3.221487592811232 1.8902e-08 au
q 3.029559219070924 1.2253e-07 au
i 2.562938504487847 3.5949e-06 deg
node 284.1539694505735 0.00010145 deg
peri 121.8100871641452 0.00010704 deg
M 153.3514106972675 3.4783e-05 deg
tp 2458100.860747300342
(2017-Dec-13.36074730)
0.00020208 TDB
period 2111.947516487032
5.78
1.8588e-05
5.089e-08
d
yr
n .1704587813805223 1.5003e-09 deg/d
Q 3.41341596655154 2.0028e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1556  
   data-arc span      7613 days (20.84 yr)  
   first obs. used      1999-08-08  
   last obs. used      2020-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51316  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:44:38  

Additional Information
 Earth MOID = 2.03995 au 
 Jupiter MOID = 1.85477 au 
 T_jup = 3.185 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456972.5 (2014-Nov-11.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06004420308267059 3.8414e-08  
q 3.028133876141916 1.2177e-07 au
tp 2455996.221424955757
(2012-Mar-09.72142496)
0.00019832 TDB
node 284.1816561637975 0.00010145 deg
peri 123.3206183663663 0.00010702 deg
i 2.563008071288819 3.595e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1556  
   data-arc span      7613 days (20.84 yr)  
   first obs. used      1999-08-08  
   last obs. used      2020-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51316  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:44:38  

Additional Information
 Jupiter MOID = 1.85477 au 
 T_jup = 3.185 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.475610126210181E-15 -4.629876507866112E-15 -1.680976194207032E-12 -1.950915531687477E-15 -3.024377434279528E-13 -8.536649560762583E-17
q -4.629876507866112E-15 1.482895700642999E-14 5.871096533998113E-12 1.128900498159343E-14 1.071274619611076E-12 2.209274618122149E-16
tp -1.680976194207032E-12 5.871096533998113E-12 3.93321672688729E-8 2.181053912846736E-11 6.795530192727374E-9 -5.490798784844302E-14
node -1.950915531687477E-15 1.128900498159343E-14 2.181053912846736E-11 1.029122376808257E-8 -1.027614070122679E-8 1.64128167433255E-11
peri -3.024377434279528E-13 1.071274619611076E-12 6.795530192727374E-9 -1.027614070122679E-8 1.145306952847387E-8 -1.642269412133552E-11
i -8.536649560762583E-17 2.209274618122149E-16 -5.490798784844302E-14 1.64128167433255E-11 -1.642269412133552E-11 1.292409759894552E-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 13.62   n/a E2021B10  
diameter diameter 11.039 km 0.210 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.063   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59908 (1999 RS154)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1999 RS154 = 2000 VJ38 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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