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227884 (2007 EU42)
Classification: Main-belt Asteroid          SPK-ID: 2227884
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 .04055483281789984 5.2963e-08  
a 2.775887673320717 2.3918e-08 au
q 2.663312012807927 1.4274e-07 au
i 4.731958283748257 5.7075e-06 deg
node 16.37797513430202 6.7267e-05 deg
peri 274.203599408977 0.00010838 deg
M 249.7787495560193 8.9822e-05 deg
tp 2459717.706640659521
(2022-May-18.20664066)
0.00042408 TDB
period 1689.278518320382
4.62
2.1833e-05
5.978e-08
d
yr
n .2131087302039106 2.7543e-09 deg/d
Q 2.888463333833508 2.4888e-08 au
  Orbit Determination Parameters
   # obs. used (total)      251  
   data-arc span      9892 days (27.08 yr)  
   first obs. used      1993-04-14  
   last obs. used      2020-05-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61956  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 02:24:09  

Additional Information
 Earth MOID = 1.65067 au 
 Jupiter MOID = 2.17752 au 
 T_jup = 3.329 
[ 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 16.36   n/a E2021B55  
diameter diameter 3.319 km 0.684 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.053   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

227884 (2007 EU42)          Discovered 2007-Mar-09 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Alternate Designations
 2007 EU42 = 1995 WK22 = 2004 RM314 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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