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2718 Handley (1951 OM)
Classification: Main-belt Asteroid          SPK-ID: 2002718
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 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1554022488488351 3.1132e-08  
a 3.119546479547936 1.35e-08 au
q 2.63476194123772 9.8296e-08 au
i 1.492209043693398 3.4912e-06 deg
node 44.48325269186765 0.00013777 deg
peri 265.7028819593731 0.00013825 deg
M 227.006333940187 1.3454e-05 deg
tp 2459943.971071998057
(2022-Dec-30.47107200)
7.6834e-05 TDB
period 2012.498744105053
5.51
1.3064e-05
3.577e-08
d
yr
n .178882099208509 1.1612e-09 deg/d
Q 3.604331017858152 1.5598e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3408  
   data-arc span      25439 days (69.65 yr)  
   first obs. used      1951-07-30  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41788  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 20:28:12  

Additional Information
 Earth MOID = 1.61886 au 
 Jupiter MOID = 1.6627 au 
 T_jup = 3.197 
[ 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 11.89   n/a E2021B10  
diameter diameter 25.309 km 0.305 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 13.09803 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.058   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

2718 Handley (1951 OM)          Discovered 1951-Jul-30 by Johnson, E. L. at Johannesburg (UO)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1951 OM = 1935 SL = 1972 JT1 = 1974 WB1 = 1979 SF1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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