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134553 (1999 RK165)
Classification: Main-belt Asteroid          SPK-ID: 2134553
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2439716025822198 3.4783e-08  
a 2.357407309731049 1.1663e-08 au
q 1.782266870436925 8.2472e-08 au
i 2.40827027343033 4.9502e-06 deg
node 307.5805771993838 9.9026e-05 deg
peri 96.92476869194202 0.0001 deg
M 282.1729986562201 1.4291e-05 deg
tp 2459486.310488592111
(2021-Sep-28.81048859)
5.4014e-05 TDB
period 1322.057565068751
3.62
9.8107e-06
2.686e-08
d
yr
n .272302817601803 2.0207e-09 deg/d
Q 2.932547749025172 1.4508e-08 au
  Orbit Determination Parameters
   # obs. used (total)      541  
   data-arc span      8108 days (22.20 yr)  
   first obs. used      1997-02-11  
   last obs. used      2019-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52756  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 12:28:51  

Additional Information
 Earth MOID = .792474 au 
 Jupiter MOID = 2.48202 au 
 T_jup = 3.512 
[ 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 16.8   n/a MPO432809  
diameter diameter 1.322 km 0.454 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 151.406 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.]
geometric albedo albedo 0.211   0.169 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

134553 (1999 RK165)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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