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129865 (1999 RA170)
Classification: Main-belt Asteroid          SPK-ID: 2129865
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2391391770719406 3.7865e-08  
a 2.393875672668302 1.3429e-08 au
q 1.821406214293866 9.4339e-08 au
i 5.475998691841658 5.0754e-06 deg
node 339.2386550896783 5.3868e-05 deg
peri 307.6742441029879 5.5575e-05 deg
M 254.4630369198411 1.6414e-05 deg
tp 2459397.100179008782
(2021-Jul-01.60017901)
6.4058e-05 TDB
period 1352.853637968702
3.70
1.1384e-05
3.117e-08
d
yr
n .2661041740927251 2.2391e-09 deg/d
Q 2.966345131042738 1.664e-08 au
  Orbit Determination Parameters
   # obs. used (total)      430  
   data-arc span      7469 days (20.45 yr)  
   first obs. used      1999-08-22  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58065  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 07:06:19  

Additional Information
 Earth MOID = .811467 au 
 Jupiter MOID = 2.23863 au 
 T_jup = 3.485 
[ 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 16.2   n/a MPO314246  
diameter diameter 3.459 km 0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.057   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

129865 (1999 RA170)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

[ show close-approach data ]
Alternate Designations
 1999 RA170 = 2002 GP98 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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