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101397 (1998 UG39)
Classification: Main-belt Asteroid          SPK-ID: 2101397
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2111592198020872 4.5554e-08  
a 2.357661843988532 9.5697e-09 au
q 1.859819808454763 1.0639e-07 au
i 3.199170052377524 4.9188e-06 deg
node 42.31154911733911 8.0903e-05 deg
peri 331.790506902368 8.1461e-05 deg
M 53.04417116858252 1.0509e-05 deg
tp 2459005.669983899230
(2020-Jun-05.16998390)
3.8103e-05 TDB
period 1322.271688879167
3.62
8.0506e-06
2.204e-08
d
yr
n .2722587218857848 1.6576e-09 deg/d
Q 2.8555038795223 1.159e-08 au
  Orbit Determination Parameters
   # obs. used (total)      647  
   data-arc span      8135 days (22.27 yr)  
   first obs. used      1998-10-10  
   last obs. used      2021-01-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55649  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:36:36  

Additional Information
 Earth MOID = .860052 au 
 Jupiter MOID = 2.60856 au 
 T_jup = 3.521 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.2   n/a MPO436474  
diameter diameter 1.580 km 0.185 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.214   0.095 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101397 (1998 UG39)          Discovered 1998-Oct-28 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 UG39 = 2003 AD47 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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