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268515 (2005 YD178)
Classification: Main-belt Asteroid          SPK-ID: 2268515
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02557200467339401 1.1897e-07  
a 2.816683532338386 3.7787e-08 au
q 2.744655287885956 3.3296e-07 au
i .6595482898099032 1.3662e-05 deg
node 342.7600645978642 0.00064605 deg
peri 154.3815835100719 0.00067568 deg
M 353.4828816144097 0.00019723 deg
tp 2459031.757815133124
(2020-Jul-01.25781513)		 0.00094609 TDB
period 1726.654754777068
4.73		 3.4746e-05
9.513e-08		 d
yr
n .2084956468593401 4.1956e-09 deg/d
Q 2.888711776790815 3.8754e-08 au
   Orbit Determination Parameters
   # obs. used (total)      121  
   data-arc span      6970 days (19.08 yr)  
   first obs. used      1999-09-06  
   last obs. used      2018-10-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68723  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 06:21:35  

Additional Information
 Earth MOID = 1.75766 au 
 Jupiter MOID = 2.09389 au 
 T_jup = 3.318 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456606.5 (2013-Nov-10.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02492952941785634 1.2372e-07  
q 2.745666489543291 3.4595e-07 au
tp 2457329.424610684739
(2015-Nov-02.92461068)		 0.00089117 TDB
node 342.8595978407951 0.00064283 deg
peri 159.3913892176974 0.0006696 deg
i .6626536512620833 1.3664e-05 deg
   Orbit Determination Parameters
   # obs. used (total)      121  
   data-arc span      6970 days (19.08 yr)  
   first obs. used      1999-09-06  
   last obs. used      2018-10-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68723  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 06:21:35  

Additional Information
 Jupiter MOID = 2.09389 au 
 T_jup = 3.318 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.530651750883654E-14 -4.256366327430758E-14 5.525310152997554E-11 -8.380237400280296E-14 1.192464502024842E-11 -6.3730780165188E-16
q -4.256366327430758E-14 1.1967911158037E-13 -1.49600476675382E-10 2.256332653169541E-13 -3.242095685274834E-11 2.142503965124904E-15
tp 5.525310152997554E-11 -1.49600476675382E-10 7.941833873147838E-7 -3.445728634606567E-10 1.670390452283223E-7 8.80126783040775E-12
node -8.380237400280296E-14 2.256332653169541E-13 -3.445728634606567E-10 4.132322074304132E-7 -4.132761307193441E-7 9.57898622486762E-10
peri 1.192464502024842E-11 -3.242095685274834E-11 1.670390452283223E-7 -4.132761307193441E-7 4.483658848241472E-7 -9.56013594020385E-10
i -6.3730780165188E-16 2.142503965124904E-15 8.80126783040775E-12 9.57898622486762E-10 -9.56013594020385E-10 1.867057466528853E-10

[ 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 17.1   n/a MPO273626  

268515 (2005 YD178)          Discovered 2005-Dec-22 by Spacewatch at Kitt Peak
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23

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