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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1290934516926418 8.3019e-06  
a 46.98072995554303 0.00082331 au
q 40.91582536254209 0.00066758 au
i 24.44976008874856 4.8281e-05 deg
node 297.6041370011161 7.349e-05 deg
peri 297.8958569538144 0.0056596 deg
M 294.663505678041 0.005572 deg
tp 2480547.231860662465
(2079-May-28.73186066)
1.26 TDB
period 117619.1583216869
322.02
3.0918
0.008465
d
yr
n .003060725864194713 8.0456e-08 deg/d
Q 53.04563454854398 0.00092959 au
  Orbit Determination Parameters
   # obs. used (total)      473  
   data-arc span      8424 days (23.06 yr)  
   first obs. used      1997-12-29  
   last obs. used      2021-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .34394  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-23 20:31:25  

Additional Information
 Earth MOID = 39.9737 au 
 Jupiter MOID = 35.9794 au 
 T_jup = 5.536 
[ 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 3.51   n/a E2021B10  
rotation period rot_per 8.86 h n/a LCDB (Rev. 2020-October); 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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