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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1670529923161642 5.5837e-08  
a 2.608316427990024 1.1356e-08 au
q 2.172589363786882 1.4206e-07 au
i 14.14090847804124 4.031e-06 deg
node 137.7431861205531 1.9005e-05 deg
peri 236.7403980680524 2.2673e-05 deg
M 173.3901984991749 1.3463e-05 deg
tp 2458655.427180318346
(2019-Jun-20.92718032)
5.6006e-05 TDB
period 1538.64645980358
4.21
1.0049e-05
2.751e-08
d
yr
n .2339718768442471 1.528e-09 deg/d
Q 3.044043492193167 1.3253e-08 au
  Orbit Determination Parameters
   # obs. used (total)      897  
   data-arc span      8204 days (22.46 yr)  
   first obs. used      1998-12-17  
   last obs. used      2021-06-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52512  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:27:09  

Additional Information
 Earth MOID = 1.20344 au 
 Jupiter MOID = 2.48898 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 14.98   n/a MPO637177  
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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