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85312 (1994 YB1)
Classification: Main-belt Asteroid          SPK-ID: 2085312
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2887833824517067 3.9782e-08  
a 3.151671569946947 2.2375e-08 au
q 2.241521193600787 1.2437e-07 au
i 10.75156407579831 5.4459e-06 deg
node 106.1979940760559 2.2649e-05 deg
peri 303.4772294582338 2.4236e-05 deg
M 239.6173933768153 1.0608e-05 deg
tp 2459683.893903352836
(2022-Apr-14.39390335)
6.5322e-05 TDB
period 2043.665709757435
5.60
2.1764e-05
5.959e-08
d
yr
n .1761540541005254 1.8759e-09 deg/d
Q 4.061821946293107 2.8837e-08 au
  Orbit Determination Parameters
   # obs. used (total)      736  
   data-arc span      8917 days (24.41 yr)  
   first obs. used      1994-12-28  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51226  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:29:49  

Additional Information
 Earth MOID = 1.27339 au 
 Jupiter MOID = 1.4426 au 
 T_jup = 3.115 
[ 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 14.2   n/a MPO436372  
diameter diameter 10.090 km 0.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.048   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85312 (1994 YB1)          Discovered 1994-Dec-28 by Kobayashi, T. at Oizumi
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1994 YB1 = 1999 SF20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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