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86171 (1999 RO211)
Classification: Main-belt Asteroid          SPK-ID: 2086171
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1593449989159162 6.9462e-08  
a 3.176567620186967 2.1656e-08 au
q 2.670397456191941 2.2427e-07 au
i 27.44234910006549 7.7997e-06 deg
node 206.7826901127142 8.7818e-06 deg
peri 187.7214053155394 1.5212e-05 deg
M 224.1932245416394 1.4819e-05 deg
tp 2459780.607621224959
(2022-Jul-20.10762123)
8.9846e-05 TDB
period 2067.928810570224
5.66
2.1147e-05
5.79e-08
d
yr
n .1740872307401778 1.7802e-09 deg/d
Q 3.682737784181994 2.5107e-08 au
  Orbit Determination Parameters
   # obs. used (total)      961  
   data-arc span      8463 days (23.17 yr)  
   first obs. used      1997-04-12  
   last obs. used      2020-06-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52591  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 00:20:07  

Additional Information
 Earth MOID = 1.67764 au 
 Jupiter MOID = 1.76844 au 
 T_jup = 3.007 
[ 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 13.7   n/a MPO474747  
diameter diameter 10.430 km 0.076 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 1.90 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, M.; Trilling, D.E.; et al. (2018) Ap. J. Suppl. Series 237, A19.]
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]
geometric albedo albedo 0.040   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

86171 (1999 RO211)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

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