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315530 (2008 AP129)
Classification: TransNeptunian Object          SPK-ID: 2315530
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1357499500695575 2.6935e-05  
a 41.54599156421367 0.001816 au
q 35.90612528378141 0.00086401 au
i 27.41918042732323 8.6786e-05 deg
node 14.87470181266489 0.00040535 deg
peri 56.28899217992668 0.010923 deg
M 53.94878550247884 0.010904 deg
tp 2444342.615634821070
(1980-Apr-13.11563482)
2.0936 TDB
period 97811.99562355217
267.79
6.413
0.01756
d
yr
n .003680530160999144 2.4131e-07 deg/d
Q 47.18585784464593 0.0020625 au
  Orbit Determination Parameters
   # obs. used (total)      111  
   data-arc span      10305 days (28.21 yr)  
   first obs. used      1989-10-09  
   last obs. used      2017-12-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .44122  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Feb-06 09:07:11  

Additional Information
 Earth MOID = 34.9959 au 
 Jupiter MOID = 31.2977 au 
 T_jup = 5.095 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 4.7   n/a MPO434015  
rotation period rot_per 9.04 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Thirouin, A.; Sheppard, S.S.; Noll, K.S.; Moskovitz, N.A.; et al. (2016) Astron. J. 151, A148.]

315530 (2008 AP129)          Discovered 2008-Jan-11 by Schwamb, M. E., Brown, M. E. at Palomar
Reference: 20120207/Numbers.arcLast Updated: 2012-02-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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