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85838 (1998 YU2)
Classification: Main-belt Asteroid          SPK-ID: 2085838
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07982833643331989 3.2045e-08  
a 2.371645957170808 1.0018e-08 au
q 2.182321405801054 7.7903e-08 au
i 5.872956397346687 4.7599e-06 deg
node 324.5582077101586 3.6341e-05 deg
peri 279.9169916997469 5.0092e-05 deg
M 310.8668680368795 3.6744e-05 deg
tp 2459578.572837746546
(2021-Dec-30.07283775)
0.00013653 TDB
period 1334.053396757927
3.65
8.4525e-06
2.314e-08
d
yr
n .2698542658598879 1.7098e-09 deg/d
Q 2.560970508540563 1.0817e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1136  
   data-arc span      8184 days (22.41 yr)  
   first obs. used      1998-12-17  
   last obs. used      2021-05-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5308  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:27:09  

Additional Information
 Earth MOID = 1.17851 au 
 Jupiter MOID = 2.47146 au 
 T_jup = 3.533 
[ 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 15.51   n/a MPCxxxxx  
diameter diameter 1.887 km 0.476 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.413   0.226 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85838 (1998 YU2)          Discovered 1998-Dec-17 by ODAS at Caussols
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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