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201845 (2003 YB85)
Classification: Main-belt Asteroid          SPK-ID: 2201845
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1988026811037654 4.5903e-08  
a 3.04936644662369 3.1509e-08 au
q 2.443144221367039 1.3809e-07 au
i 7.900553524901557 5.0516e-06 deg
node 230.3303178314009 4.9266e-05 deg
peri 195.6861375206044 5.284e-05 deg
M 41.60446152175361 2.0492e-05 deg
tp 2458775.723834922833
(2019-Oct-19.22383492)
0.00010864 TDB
period 1944.969757281201
5.33
3.0146e-05
8.254e-08
d
yr
n .1850928522936163 2.8688e-09 deg/d
Q 3.655588671880343 3.7773e-08 au
  Orbit Determination Parameters
   # obs. used (total)      365  
   data-arc span      6418 days (17.57 yr)  
   first obs. used      2002-07-21  
   last obs. used      2020-02-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47918  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 05:03:25  

Additional Information
 Earth MOID = 1.45776 au 
 Jupiter MOID = 1.68461 au 
 T_jup = 3.193 
[ 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 15.6   n/a MPO454430  
diameter diameter 5.274 km 0.393 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.789 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 0.044   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

201845 (2003 YB85)          Discovered 2003-Dec-19 by LINEAR at Socorro
Reference: 20081212/Numbers.arcLast Updated: 2008-12-12

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