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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1860954833135873 5.85e-08  
a 2.330834275846762 1.3288e-08 au
q 1.897076544759183 1.3442e-07 au
i 24.31001037554172 6.7997e-06 deg
node 235.909465005469 1.1273e-05 deg
peri 171.5247175017277 1.741e-05 deg
M 111.1745489312317 1.3269e-05 deg
tp 2458995.108292428581
(2020-May-25.60829243)
4.6806e-05 TDB
period 1299.767043040523
3.56
1.1115e-05
3.043e-08
d
yr
n .276972709784869 2.3685e-09 deg/d
Q 2.76459200693434 1.5761e-08 au
  Orbit Determination Parameters
   # obs. used (total)      732  
   data-arc span      9204 days (25.20 yr)  
   first obs. used      1996-01-26  
   last obs. used      2021-04-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50087  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:26:57  

Additional Information
 Earth MOID = .909535 au 
 Jupiter MOID = 2.62538 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 15.36   n/a MPCxxxxx  
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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