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55565 (2002 AW197)
Classification: TransNeptunian Object          SPK-ID: 2055565
Ephemeris | Orbit Diagram | Orbital Elements | 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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1300789332456503 1.2229e-05  
a 47.04168885763924 0.0019425 au
q 40.92255615296374 0.0014346 au
i 24.45071985833922 7.2588e-05 deg
node 297.60596366894 0.00010597 deg
peri 297.4928309718794 0.013173 deg
M 294.5322596109478 0.013013 deg
tp 2480431.756554736050
(2079-Feb-02.25655474)
2.933 TDB
period 117848.1541268402
322.65
7.2995
0.01998
d
yr
n .003054778436432116 1.8921e-07 deg/d
Q 53.16082156231474 0.0021952 au
  Orbit Determination Parameters
   # obs. used (total)      250  
   data-arc span      8152 days (22.32 yr)  
   first obs. used      1997-12-29  
   last obs. used      2020-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .32426  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 10:57:30  

Additional Information
 Earth MOID = 39.9824 au 
 Jupiter MOID = 35.9897 au 
 T_jup = 5.538 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 3.3   n/a MPO436172  
rotation period rot_per 8.86 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:
[Ortiz, J.L.; Gutierrez, P.J.; Santos-Sanz, P.; Casanova, V.; Sota, A. (2006) Astron. Astrophys. 447, 1131-1144.]
[Thirouin, A.; Ortiz, J.L.; Duffard, R.; Santos-Sanz, P.; et al. (2010) Astron. Astrophys. 522, A93.]

55565 (2002 AW197)          Discovered 2002-Jan-10 by Palomar at Palomar
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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