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78991 (2003 UH169)
Classification: Main-belt Asteroid          SPK-ID: 2078991
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08667429283574193 5.6289e-08  
a 3.116395177739328 2.2496e-08 au
q 2.846283829512056 1.8176e-07 au
i 10.7014996497142 5.4908e-06 deg
node 49.40121215263171 2.3481e-05 deg
peri 331.7656934527176 3.4577e-05 deg
M 32.7870912442437 2.3385e-05 deg
tp 2458817.488828573200
(2019-Nov-29.98882857)
0.00013086 TDB
period 2009.450036993297
5.50
2.1758e-05
5.957e-08
d
yr
n .1791534964156966 1.9399e-09 deg/d
Q 3.386506525966601 2.4446e-08 au
  Orbit Determination Parameters
   # obs. used (total)      960  
   data-arc span      7985 days (21.86 yr)  
   first obs. used      1998-12-17  
   last obs. used      2020-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49903  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:24:48  

Additional Information
 Earth MOID = 1.85546 au 
 Jupiter MOID = 2.05928 au 
 T_jup = 3.185 
[ 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 14.2   n/a MPO453212  
diameter diameter 5.235 km 0.341 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.177   0.068 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78991 (2003 UH169)          Discovered 2003-Oct-22 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2003 UH169 = 2000 ER184 = 2001 KH48 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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