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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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .207460696262289 2.9696e-08  
a 2.349096460355691 8.6845e-09 au
q 1.861751273103021 7.0452e-08 au
i 1.368175180617582 3.6525e-06 deg
node 237.0011001586459 0.00020818 deg
peri 187.1043789172291 0.00020856 deg
M 218.1628253305483 1.3711e-05 deg
tp 2459518.628251779284
(2021-Oct-31.12825178)
5.1564e-05 TDB
period 1315.072519424032
3.60
7.2926e-06
1.997e-08
d
yr
n .2737491618771493 1.5181e-09 deg/d
Q 2.836441647608361 1.0486e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1080  
   data-arc span      12289 days (33.65 yr)  
   first obs. used      1985-12-17  
   last obs. used      2019-08-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52685  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:01:08  

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. 2020-October); 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.]
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
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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