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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1844143661692045 6.7717e-08  
a 3.17645734580487 4.0302e-08 au
q 2.590672977714751 2.1424e-07 au
i 18.97471977198832 7.5687e-06 deg
node 73.91997117027812 2.1601e-05 deg
peri 359.3773075991941 3.0264e-05 deg
M 212.3039400639329 2.3359e-05 deg
tp 2459848.858426308204
(2022-Sep-26.35842631)
0.00014491 TDB
period 2067.821129440795
5.66
3.9354e-05
1.077e-07
d
yr
n .1740962962775003 3.3134e-09 deg/d
Q 3.762241713894989 4.7735e-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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55128  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 14:12:10  

Additional Information
 Earth MOID = 1.60562 au 
 Jupiter MOID = 1.55047 au 
 T_jup = 3.090 
[ 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. 2019-August); 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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