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85514 (1997 UD16)
Classification: Main-belt Asteroid          SPK-ID: 2085514
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2069430472998826 4.1461e-08  
a 2.40100302692026 8.1644e-09 au
q 1.90413214395314 9.9325e-08 au
i 2.744879247824497 4.8946e-06 deg
node 19.33848248683409 8.5349e-05 deg
peri 285.4444320797948 8.6272e-05 deg
M 91.36995123287507 1.046e-05 deg
tp 2458655.603822912349
(2019-Jun-21.10382291)
3.9707e-05 TDB
period 1358.899967398478
3.72
6.9313e-06
1.898e-08
d
yr
n .2649201623642656 1.3513e-09 deg/d
Q 2.897873909887381 9.854e-09 au
  Orbit Determination Parameters
   # obs. used (total)      882  
   data-arc span      8987 days (24.61 yr)  
   first obs. used      1996-03-16  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55819  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:00:44  

Additional Information
 Earth MOID = .891335 au 
 Jupiter MOID = 2.35412 au 
 T_jup = 3.495 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457112.5 (2015-Mar-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2070975897359529 4.1419e-08  
q 1.903487074025695 9.9296e-08 au
tp 2457297.784030844257
(2015-Oct-02.28403084)
4.1396e-05 TDB
node 19.3691683026673 8.5269e-05 deg
peri 285.6600200743232 8.6192e-05 deg
i 2.74675269989961 4.8967e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      882  
   data-arc span      8987 days (24.61 yr)  
   first obs. used      1996-03-16  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55819  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:00:44  

Additional Information
 Jupiter MOID = 2.35412 au 
 T_jup = 3.495 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.715537838605684E-15 -4.103866275607362E-15 5.348281414863508E-13 -7.6543859045349E-15 1.316225957276275E-13 -2.778398311164964E-15
q -4.103866275607362E-15 9.859732477330857E-15 -1.372902185067164E-12 1.823451629244511E-14 -3.451110336626003E-13 6.723665838539787E-15
tp 5.348281414863508E-13 -1.372902185067164E-12 1.7136268418608E-9 -5.331869520625539E-12 5.331754591985235E-10 -1.767383530737047E-12
node -7.6543859045349E-15 1.823451629244511E-14 -5.331869520625539E-12 7.270866041454604E-9 -7.263369348677903E-9 -1.368497411305842E-10
peri 1.316225957276275E-13 -3.451110336626003E-13 5.331754591985235E-10 -7.263369348677903E-9 7.429075137809111E-9 1.362551238013566E-10
i -2.778398311164964E-15 6.723665838539787E-15 -1.767383530737047E-12 -1.368497411305842E-10 1.362551238013566E-10 2.397784777008551E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7   n/a MPO502665  

85514 (1997 UD16)          Discovered 1997-Oct-23 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1997 UD16 = 2000 LJ35 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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