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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2110485200306383 4.8756e-08  
a 2.357238429954889 1.0203e-08 au
q 1.859746747953564 1.1499e-07 au
i 3.199354385090557 5.2041e-06 deg
node 42.31256955582438 8.4167e-05 deg
peri 331.7605753255251 8.4709e-05 deg
M 358.6111899795037 1.071e-05 deg
tp 2459005.599693048312
(2020-Jun-05.09969305)
3.9341e-05 TDB
period 1321.915503415217
3.62
8.5822e-06
2.35e-08
d
yr
n .2723320810368945 1.7681e-09 deg/d
Q 2.854730111956214 1.2356e-08 au
  Orbit Determination Parameters
   # obs. used (total)      591  
   data-arc span      8053 days (22.05 yr)  
   first obs. used      1998-10-10  
   last obs. used      2020-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56398  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:00:49  

Additional Information
 Earth MOID = .861404 au 
 Jupiter MOID = 2.60821 au 
 T_jup = 3.521 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456593.5 (2013-Oct-28.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2119856052820898 4.8859e-08  
q 1.858252955930039 1.1539e-07 au
tp 2456362.362532871345
(2013-Mar-10.86253287)
3.4753e-05 TDB
node 42.39927383747273 8.4007e-05 deg
peri 331.9071215884699 8.454e-05 deg
i 3.203157729677395 5.2081e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      591  
   data-arc span      8053 days (22.05 yr)  
   first obs. used      1998-10-10  
   last obs. used      2020-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56398  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:00:49  

Additional Information
 Jupiter MOID = 2.60821 au 
 T_jup = 3.521 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.387185416019586E-15 -5.624325192126205E-15 -1.78946585173807E-13 -1.349039032628652E-14 -4.275360008393552E-14 -1.860454959077635E-15
q -5.624325192126205E-15 1.331593205704719E-14 4.224454304623612E-13 3.190885610102724E-14 1.024704440506171E-13 4.396076280996947E-15
tp -1.78946585173807E-13 4.224454304623612E-13 1.207784024764623E-9 6.482530626335104E-13 3.497288480417019E-10 4.77710066476994E-14
node -1.349039032628652E-14 3.190885610102724E-14 6.482530626335104E-13 7.057139914431554E-9 -7.045325761998551E-9 -1.144985922853204E-10
peri -4.275360008393552E-14 1.024704440506171E-13 3.497288480417019E-10 -7.045325761998551E-9 7.147068935240188E-9 1.14348487153383E-10
i -1.860454959077635E-15 4.396076280996947E-15 4.77710066476994E-14 -1.144985922853204E-10 1.14348487153383E-10 2.712404944753011E-11

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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