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74794 (1999 SE12)
Classification: Main-belt Asteroid          SPK-ID: 2074794
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2031433505999067 5.0924e-08  
a 2.393737715702757 1.5027e-08 au
q 1.907465815677532 1.2928e-07 au
i 23.37151464662597 5.6342e-06 deg
node 265.9962154317631 1.3052e-05 deg
peri 330.185055371642 2.1223e-05 deg
M 314.8168324353937 1.8996e-05 deg
tp 2459170.280357542878
(2020-Nov-16.78035754)
7.1955e-05 TDB
period 1352.73669399209
3.70
1.2738e-05
3.487e-08
d
yr
n .2661271787768218 2.506e-09 deg/d
Q 2.880009615727982 1.808e-08 au
  Orbit Determination Parameters
   # obs. used (total)      816  
   data-arc span      7561 days (20.70 yr)  
   first obs. used      1999-09-18  
   last obs. used      2020-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50033  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:50:47  

Additional Information
 Earth MOID = .915192 au 
 Jupiter MOID = 2.25225 au 
 T_jup = 3.393 
[ 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 14.6   n/a MPO502608  
diameter diameter 2.626 km 0.184 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.445   0.093 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74794 (1999 SE12)          Discovered 1999-Sep-22 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 SE12 = 2000 YU65 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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