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65851 (1997 EM2)
Classification: Main-belt Asteroid          SPK-ID: 2065851
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01792160874696698 6.6288e-08  
a 2.667631322099907 2.0863e-08 au
q 2.619823077264078 1.8048e-07 au
i 10.75699688046315 5.5875e-06 deg
node 303.9898436352718 3.1476e-05 deg
peri 256.5598910284655 0.00014948 deg
M 52.50355544471689 0.00014652 deg
tp 2458768.400955681730
(2019-Oct-11.90095568)
0.00064782 TDB
period 1591.428527970005
4.36
1.8669e-05
5.111e-08
d
yr
n .2262118553694704 2.6537e-09 deg/d
Q 2.715439566935736 2.1237e-08 au
  Orbit Determination Parameters
   # obs. used (total)      621  
   data-arc span      12878 days (35.26 yr)  
   first obs. used      1984-01-25  
   last obs. used      2019-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56402  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 05:31:52  

Additional Information
 Earth MOID = 1.64081 au 
 Jupiter MOID = 2.33509 au 
 T_jup = 3.357 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.1   n/a MPO474536  
diameter diameter 2.778 km 0.311 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.275   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

65851 (1997 EM2)          Discovered 1997-Mar-04 by Galad, A., Pravda, A. at Modra
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 EM2 = 1984 BC6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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