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277487 (2005 WM73)
Classification: Main-belt Asteroid          SPK-ID: 2277487
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1830838196953075 6.7028e-08  
a 3.178228263229826 4.2249e-08 au
q 2.596346092934126 2.1015e-07 au
i 18.92392479070021 7.5659e-06 deg
node 73.8076035901464 2.1653e-05 deg
peri 359.5792512197255 3.0563e-05 deg
M 246.8721229378652 2.4096e-05 deg
tp 2459850.844080390919
(2022-Sep-28.34408039)
0.00014658 TDB
period 2069.550627314785
5.67
4.1267e-05
1.13e-07
d
yr
n .1739508061550035 3.4686e-09 deg/d
Q 3.760110433525526 4.9984e-08 au
  Orbit Determination Parameters
   # obs. used (total)      307  
   data-arc span      7137 days (19.54 yr)  
   first obs. used      1999-11-12  
   last obs. used      2019-05-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55133  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 04:01:06  

Additional Information
 Earth MOID = 1.61081 au 
 Jupiter MOID = 1.55338 au 
 T_jup = 3.091 
[ show covariance matrix ]

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 15.4   n/a MPO402018  
rotation period rot_per 2.28 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, M.; Trilling, D.E.; et al. (2018) Ap. J. Suppl. Series 237, A19.]
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]

277487 (2005 WM73)          Discovered 2005-Nov-25 by Spacewatch at Kitt Peak
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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