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91533 (1999 RY199)
Classification: Main-belt Asteroid          SPK-ID: 2091533
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07729297183304348 5.9394e-08  
a 2.618674004841956 2.0746e-08 au
q 2.416268908745784 1.5463e-07 au
i 14.24456767166876 6.1504e-06 deg
node 284.4332460776227 2.6795e-05 deg
peri 275.9287479957371 4.9419e-05 deg
M 112.4843034340954 4.2832e-05 deg
tp 2458516.873594388227
(2019-Feb-02.37359439)
0.00018391 TDB
period 1547.82045765387
4.24
1.8393e-05
5.036e-08
d
yr
n .2325851155538253 2.7639e-09 deg/d
Q 2.821079100938129 2.2349e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1337  
   data-arc span      7581 days (20.76 yr)  
   first obs. used      1999-09-08  
   last obs. used      2020-06-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43143  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 00:39:59  

Additional Information
 Earth MOID = 1.46092 au 
 Jupiter MOID = 2.35572 au 
 T_jup = 3.358 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9   n/a MPO439643  
diameter diameter 4.987 km 0.151 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.85 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:
[Kim, M.-J.; Choi, Y.-J.; Moon, H.-K.; Byun, Y.-I.; et al. (2014) Astron. J. 147, A56.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.283   0.067 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91533 (1999 RY199)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1999 RY199 = 2000 WM117 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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