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70329 (1999 RY163)
Classification: Main-belt Asteroid          SPK-ID: 2070329
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2074606715043848 2.9706e-08  
a 2.349096461022839 8.7673e-09 au
q 1.861751331790467 7.0458e-08 au
i 1.368177255587218 3.6571e-06 deg
node 237.0009280926283 0.00020879 deg
peri 187.1045503998126 0.00020917 deg
M 218.1628219286679 1.3752e-05 deg
tp 2459518.628264427007
(2021-Oct-31.12826443)
5.1724e-05 TDB
period 1315.072519984257
3.60
7.3622e-06
2.016e-08
d
yr
n .2737491617605314 1.5325e-09 deg/d
Q 2.836441590255211 1.0586e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1064  
   data-arc span      12191 days (33.38 yr)  
   first obs. used      1985-12-17  
   last obs. used      2019-05-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5294  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:34:47  

Additional Information
 Earth MOID = .875142 au 
 Jupiter MOID = 2.48157 au 
 T_jup = 3.529 
[ 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 15.5   n/a MPO266257  
diameter diameter 1.820 km 0.128 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.234 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.307   0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

70329 (1999 RY163)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RY163 = 1985 YJ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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