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100274 (1994 WU5)
Classification: Main-belt Asteroid          SPK-ID: 2100274
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08995329115766505 5.0247e-08  
a 2.482460310315394 1.2817e-08 au
q 2.259154835234246 1.2226e-07 au
i 2.59031373880742 4.8929e-06 deg
node 211.8889406260501 0.00011795 deg
peri 227.9161745846662 0.00012119 deg
M 162.3599058220117 3.1043e-05 deg
tp 2458356.185081130784
(2018-Aug-25.68508113)		 0.00012077 TDB
period 1428.637012435807
3.91		 1.1064e-05
3.029e-08		 d
yr
n .2519884315374167 1.9515e-09 deg/d
Q 2.705765785396542 1.397e-08 au
   Orbit Determination Parameters
   # obs. used (total)      321  
   data-arc span      10866 days (29.75 yr)  
   first obs. used      1990-10-14  
   last obs. used      2020-07-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58038  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:07:03  

Additional Information
 Earth MOID = 1.27569 au 
 Jupiter MOID = 2.47405 au 
 T_jup = 3.470 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457408.5 (2016-Jan-21.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09050436758347159 5.0374e-08  
q 2.2576435767674 1.2278e-07 au
tp 2456929.765674015104
(2014-Sep-29.26567402)		 0.0001152 TDB
node 211.9004645645122 0.00011795 deg
peri 228.367212851889 0.00012113 deg
i 2.590220910287618 4.8933e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      321  
   data-arc span      10866 days (29.75 yr)  
   first obs. used      1990-10-14  
   last obs. used      2020-07-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58038  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:07:03  

Additional Information
 Jupiter MOID = 2.47405 au 
 T_jup = 3.470 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.537515473600352E-15 -6.158496055420656E-15 1.059402069216082E-12 -9.44219322356157E-16 2.67024406517291E-13 -6.609321477513518E-16
q -6.158496055420656E-15 1.507377441036371E-14 -2.132328903927017E-12 6.981921455463691E-15 -5.393310324115708E-13 1.738730197935403E-15
tp 1.059402069216082E-12 -2.132328903927017E-12 1.327218141093034E-8 7.524462708165484E-11 3.214414478991685E-9 4.965052783751497E-13
node -9.44219322356157E-16 6.981921455463691E-15 7.524462708165484E-11 1.391300145619384E-8 -1.387902166052073E-8 1.135145248065912E-10
peri 2.67024406517291E-13 -5.393310324115708E-13 3.214414478991685E-9 -1.387902166052073E-8 1.467361593987633E-8 -1.132538096251334E-10
i -6.609321477513518E-16 1.738730197935403E-15 4.965052783751497E-13 1.135145248065912E-10 -1.132538096251334E-10 2.394443816559551E-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 16.9   n/a MPO422317  

100274 (1994 WU5)          Discovered 1994-Nov-28 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Alternate Designations
 1994 WU5 = 1998 XK10 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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