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305858 (2009 EY16)
Classification: Main-belt Asteroid          SPK-ID: 2305858
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05465337677999414 1.9148e-07  
a 2.569629174339066 3.252e-08 au
q 2.429190262889048 5.0311e-07 au
i 11.60700428776536 9.7822e-06 deg
node 180.0437050873894 2.5534e-05 deg
peri 356.8817619760964 6.307e-05 deg
M 253.14239420492 6.6535e-05 deg
tp 2459447.087997757202
(2021-Aug-20.58799776)
0.00028403 TDB
period 1504.541281796106
4.12
2.8561e-05
7.82e-08
d
yr
n .2392755880850513 4.5422e-09 deg/d
Q 2.710068085789084 3.4297e-08 au
  Orbit Determination Parameters
   # obs. used (total)      142  
   data-arc span      5338 days (14.61 yr)  
   first obs. used      2005-03-17  
   last obs. used      2019-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58414  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 07:41:20  

Additional Information
 Earth MOID = 1.43285 au 
 Jupiter MOID = 2.24822 au 
 T_jup = 3.400 
[ 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 17.2   n/a MPO455253  
diameter diameter 2.362 km 0.616 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.046   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

305858 (2009 EY16)          Discovered 2009-Mar-15 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

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