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100039 (1991 RO16)
Classification: Main-belt Asteroid          SPK-ID: 2100039
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2278453803294089 4.9545e-08  
a 2.331311488890442 8.6294e-09 au
q 1.800132936037879 1.1357e-07 au
i 3.372704980768597 4.5999e-06 deg
node 64.23652002578592 6.989e-05 deg
peri 301.7463841464533 7.0482e-05 deg
M 73.25381907948996 1.0359e-05 deg
tp 2458935.938494371657
(2020-Mar-27.43849437)
3.6719e-05 TDB
period 1300.166233283392
3.56
7.2189e-06
1.976e-08
d
yr
n .2768876708102697 1.5374e-09 deg/d
Q 2.862490041743006 1.0596e-08 au
  Orbit Determination Parameters
   # obs. used (total)      863  
   data-arc span      10741 days (29.41 yr)  
   first obs. used      1991-09-15  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52411  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:30:18  

Additional Information
 Earth MOID = .8 au 
 Jupiter MOID = 2.60101 au 
 T_jup = 3.533 
[ 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 16.0   n/a MPO337983  
diameter diameter 1.627 km 0.189 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.291   0.107 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100039 (1991 RO16)          Discovered 1991-Sep-15 by Holt, H. E. at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1991 RO16 = 2002 TF266 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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