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18045 (1999 RR100)
Classification: Main-belt Asteroid          SPK-ID: 2018045
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1430863751579359 5.1913e-08  
a 3.183387477286232 2.2027e-08 au
q 2.727888102438179 1.6091e-07 au
i 15.09984865104104 4.5733e-06 deg
node 282.7668145288152 2.1282e-05 deg
peri 242.5624214354817 2.7695e-05 deg
M 40.36458207441104 1.775e-05 deg
tp 2458767.888789337003
(2019-Oct-11.38878934)
0.000102 TDB
period 2074.591920320301
5.68
2.1532e-05
5.895e-08
d
yr
n .1735281027916173 1.801e-09 deg/d
Q 3.638886852134285 2.5178e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1703  
   data-arc span      12956 days (35.47 yr)  
   first obs. used      1984-12-27  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45981  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:18:31  

Additional Information
 Earth MOID = 1.77598 au 
 Jupiter MOID = 1.63999 au 
 T_jup = 3.129 
[ 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 12.4   n/a MPO458990  
diameter diameter 16.792 km 0.293 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.083   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18045 (1999 RR100)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RR100 = 1984 YJ4 = 1991 BS 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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