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101945 (1999 RP25)
Classification: Main-belt Asteroid          SPK-ID: 2101945
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4094514584595949 4.6619e-08  
a 3.174501618693092 2.3095e-08 au
q 1.87469730103686 1.5058e-07 au
i 23.06895802010543 9.3728e-06 deg
node 356.1373437534709 1.5921e-05 deg
peri 89.58798496883036 2.2383e-05 deg
M 209.7365436617703 9.333e-06 deg
tp 2459862.808425567928
(2022-Oct-10.30842557)
5.5101e-05 TDB
period 2065.91170447791
5.66
2.2545e-05
6.172e-08
d
yr
n .1742572052908611 1.9017e-09 deg/d
Q 4.474305936349323 3.2552e-08 au
  Orbit Determination Parameters
   # obs. used (total)      612  
   data-arc span      8561 days (23.44 yr)  
   first obs. used      1994-12-09  
   last obs. used      2018-05-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49657  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:29:17  

Additional Information
 Earth MOID = 1.04339 au 
 Jupiter MOID = 1.78637 au 
 T_jup = 2.950 
[ 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 14.4   n/a MPO432546  
diameter diameter 7.370 km 0.134 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.068   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101945 (1999 RP25)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 RP25 = 1999 SE14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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