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JPL Small-Body Database Browser
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85769 (1998 UB)
Classification: Main-belt Asteroid          SPK-ID: 2085769
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1857374490837797 7.9267e-08  
a 2.331264649752957 1.463e-08 au
q 1.898261500568652 1.8469e-07 au
i 24.31301404762359 8.6028e-06 deg
node 235.9256899447587 1.1373e-05 deg
peri 171.4097268555318 1.8493e-05 deg
M 250.8007967029247 1.3085e-05 deg
tp 2458994.868994686499
(2020-May-25.36899469)
4.8023e-05 TDB
period 1300.127050386109
3.56
1.2239e-05
3.351e-08
d
yr
n .2768960155802374 2.6065e-09 deg/d
Q 2.764267798937263 1.7348e-08 au
  Orbit Determination Parameters
   # obs. used (total)      579  
   data-arc span      8619 days (23.60 yr)  
   first obs. used      1996-01-26  
   last obs. used      2019-09-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51891  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:54:04  

Additional Information
 Earth MOID = .910782 au 
 Jupiter MOID = 2.62256 au 
 T_jup = 3.431 
[ 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 15.3   n/a MPO449532  
diameter diameter 2.903 km 0.189 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.191   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85769 (1998 UB)          Discovered 1998-Oct-16 by CSS at Catalina
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1998 UB = 1996 BD3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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