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355917 (2008 YT2)
Classification: Main-belt Asteroid          SPK-ID: 2355917
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2548901352976641 4.8453e-08  
a 2.305316610005042 1.4858e-08 au
q 1.717714147376905 1.1411e-07 au
i 3.7518144198414 7.287e-06 deg
node 58.71495678945887 0.0001122 deg
peri 332.4766336609413 0.00011337 deg
M 135.9358637329667 1.7716e-05 deg
tp 2458517.746038542582
(2019-Feb-03.24603854)
6.1494e-05 TDB
period 1278.481052403267
3.50
1.236e-05
3.384e-08
d
yr
n .2815841496620369 2.7222e-09 deg/d
Q 2.892919072633179 1.8645e-08 au
  Orbit Determination Parameters
   # obs. used (total)      117  
   data-arc span      6615 days (18.11 yr)  
   first obs. used      2001-12-15  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63364  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 00:22:36  

Additional Information
 Earth MOID = .724656 au 
 Jupiter MOID = 2.54928 au 
 T_jup = 3.542 
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Orbital Elements at Epoch 2456927.5 (2014-Sep-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2540039655837583 4.8128e-08  
q 1.720374935501934 1.1321e-07 au
tp 2457236.730584011483
(2015-Aug-02.23058401)
5.9764e-05 TDB
node 58.77784297160569 0.00011241 deg
peri 332.074544214474 0.0001136 deg
i 3.749617989398807 7.2732e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      117  
   data-arc span      6615 days (18.11 yr)  
   first obs. used      2001-12-15  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63364  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 00:22:36  

Additional Information
 Jupiter MOID = 2.54928 au 
 T_jup = 3.542 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.316286110081436E-15 -5.423107118342655E-15 4.139360402009925E-13 1.995607826048943E-14 1.502376802390897E-13 6.4858659903112E-16
q -5.423107118342655E-15 1.281625758630861E-14 -8.870619649353163E-13 -4.810718737634195E-14 -3.389425699592535E-13 -1.236011292543021E-15
tp 4.139360402009925E-13 -8.870619649353163E-13 3.571789252092442E-9 3.680498335890453E-11 1.033182744511193E-9 8.678733474883593E-12
node 1.995607826048943E-14 -4.810718737634195E-14 3.680498335890453E-11 1.263607648734487E-8 -1.25972671989324E-8 3.261307889855468E-10
peri 1.502376802390897E-13 -3.389425699592535E-13 1.033182744511193E-9 -1.25972671989324E-8 1.290472300940359E-8 -3.227873263853464E-10
i 6.4858659903112E-16 -1.236011292543021E-15 8.678733474883593E-12 3.261307889855468E-10 -3.227873263853464E-10 5.289906304652364E-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 17.5   n/a MPO455570  

355917 (2008 YT2)          Discovered 2008-Dec-21 by Lowe, A. at Mayhill
Reference: 20130225/Numbers.arcLast Updated: 2013-02-28

Alternate Designations
 2008 YT2 = 2001 XW247 = 2006 EO36 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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