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JPL Small-Body Database Browser
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85847 (1998 YA28)
Classification: Main-belt Asteroid          SPK-ID: 2085847
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1664645565903528 5.76e-08  
a 2.608126205203307 1.4431e-08 au
q 2.173965632922459 1.4864e-07 au
i 14.13933790390766 5.6857e-06 deg
node 137.7495579006963 2.4429e-05 deg
peri 236.7238359262225 2.9086e-05 deg
M 347.2220701715604 1.771e-05 deg
tp 2458655.107127135680
(2019-Jun-20.60712714)
7.5881e-05 TDB
period 1538.478144174113
4.21
1.2769e-05
3.496e-08
d
yr
n .2339974742983791 1.9421e-09 deg/d
Q 3.042286777484155 1.6833e-08 au
  Orbit Determination Parameters
   # obs. used (total)      640  
   data-arc span      7620 days (20.86 yr)  
   first obs. used      1998-12-17  
   last obs. used      2019-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55949  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 10:15:02  

Additional Information
 Earth MOID = 1.20473 au 
 Jupiter MOID = 2.48561 au 
 T_jup = 3.349 
[ 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 14.9   n/a MPO453289  
diameter diameter 2.614 km 0.761 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.259   0.078 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85847 (1998 YA28)          Discovered 1998-Dec-19 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1998 YA28 = 2002 TG164 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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