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65870 (1997 UK9)
Classification: Main-belt Asteroid          SPK-ID: 2065870
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2248208998844448 5.1227e-08  
a 2.27352438544728 1.4478e-08 au
q 1.762388587201793 1.179e-07 au
i 25.10256919912721 6.0477e-06 deg
node 224.0857263371319 1.3666e-05 deg
peri 169.9660947525912 1.8753e-05 deg
M 218.5324923661191 1.508e-05 deg
tp 2459492.541862147894
(2021-Oct-05.04186215)
5.5298e-05 TDB
period 1252.125476273103
3.43
1.1961e-05
3.275e-08
d
yr
n .2875111215463202 2.7464e-09 deg/d
Q 2.784660183692767 1.7733e-08 au
  Orbit Determination Parameters
   # obs. used (total)      485  
   data-arc span      10403 days (28.48 yr)  
   first obs. used      1990-10-14  
   last obs. used      2019-04-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5568  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:21:18  

Additional Information
 Earth MOID = .773397 au 
 Jupiter MOID = 2.64881 au 
 T_jup = 3.455 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456743.5 (2014-Mar-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2241447459087771 5.1113e-08  
q 1.764467394564248 1.1754e-07 au
tp 2456988.153646028116
(2014-Nov-26.65364603)
4.4681e-05 TDB
node 224.1430234007604 1.3676e-05 deg
peri 169.927783973741 1.8802e-05 deg
i 25.08433564352838 6.0455e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      485  
   data-arc span      10403 days (28.48 yr)  
   first obs. used      1990-10-14  
   last obs. used      2019-04-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5568  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:21:18  

Additional Information
 Jupiter MOID = 2.64881 au 
 T_jup = 3.455 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.612527929673729E-15 -5.980113988030259E-15 -1.997317189238899E-13 2.679083275909326E-14 -1.145115508352397E-13 1.190539400591034E-14
q -5.980113988030259E-15 1.381633308914249E-14 5.734161856536385E-13 -6.439583053375257E-14 2.87677531396598E-13 -2.672024314213789E-14
tp -1.997317189238899E-13 5.734161856536385E-13 1.996413641175889E-9 -2.456410443678008E-11 6.046611892832775E-10 -7.885567410900504E-12
node 2.679083275909326E-14 -6.439583053375257E-14 -2.456410443678008E-11 1.870366024295807E-10 -1.75182205180362E-10 -7.964275258651715E-13
peri -1.145115508352397E-13 2.87677531396598E-13 6.046611892832775E-10 -1.75182205180362E-10 3.535055182569588E-10 -1.759444673764562E-12
i 1.190539400591034E-14 -2.672024314213789E-14 -7.885567410900504E-12 -7.964275258651715E-13 -1.759444673764562E-12 3.65481080203973E-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 15.4   n/a MPO417280  

65870 (1997 UK9)          Discovered 1997-Oct-30 by NEAT at Haleakala
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

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