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251412 (2008 AB29)
Classification: Main-belt Asteroid          SPK-ID: 2251412
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2114206279035527 4.7903e-08  
a 2.648326278983909 2.2929e-08 au
q 2.088415474187652 1.2299e-07 au
i 9.826275707268694 5.2928e-06 deg
node 269.0349658537847 3.4506e-05 deg
peri 239.9295452732922 3.7618e-05 deg
M 296.6456664780449 1.8681e-05 deg
tp 2459277.531713133854
(2021-Mar-04.03171313)
8.4057e-05 TDB
period 1574.18460875492
4.31
2.0444e-05
5.597e-08
d
yr
n .2286898232887293 2.97e-09 deg/d
Q 3.208237083780166 2.7777e-08 au
  Orbit Determination Parameters
   # obs. used (total)      340  
   data-arc span      6202 days (16.98 yr)  
   first obs. used      2002-11-01  
   last obs. used      2019-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49682  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 02:55:26  

Additional Information
 Earth MOID = 1.12024 au 
 Jupiter MOID = 1.92843 au 
 T_jup = 3.339 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457258.5 (2015-Aug-24.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2110856060891959 4.8172e-08  
q 2.089417421080582 1.2366e-07 au
tp 2457704.944712272202
(2016-Nov-12.44471227)
7.1879e-05 TDB
node 269.0805779734808 3.4539e-05 deg
peri 240.1592387014572 3.7634e-05 deg
i 9.820629648418469 5.2899e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      340  
   data-arc span      6202 days (16.98 yr)  
   first obs. used      2002-11-01  
   last obs. used      2019-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49682  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 02:55:26  

Additional Information
 Jupiter MOID = 1.92843 au 
 T_jup = 3.339 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.320505420976408E-15 -5.897891352631424E-15 1.055405419740339E-12 -6.124596845802829E-15 2.533940145819056E-13 2.416957316016298E-16
q -5.897891352631424E-15 1.529221576763474E-14 -2.154818027537146E-12 1.90382993196084E-14 -5.5882873690258E-13 2.446070861801198E-16
tp 1.055405419740339E-12 -2.154818027537146E-12 5.166603675798785E-9 2.496510489967416E-12 1.11402344534747E-9 4.717317518476987E-13
node -6.124596845802829E-15 1.90382993196084E-14 2.496510489967416E-12 1.192934542572858E-9 -1.174917053952364E-9 -3.121596208701047E-11
peri 2.533940145819056E-13 -5.5882873690258E-13 1.11402344534747E-9 -1.174917053952364E-9 1.416317874124815E-9 3.080408688409744E-11
i 2.416957316016298E-16 2.446070861801198E-16 4.717317518476987E-13 -3.121596208701047E-11 3.080408688409744E-11 2.798347276984337E-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 15.8   n/a MPO454867  
diameter diameter 4.072 km 0.428 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.046   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

251412 (2008 AB29)          Discovered 2008-Jan-11 by Lowe, A. at Mayhill
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

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Alternate Designations
 2008 AB29 = 2004 FF154 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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