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129754 (1999 EE)
Classification: Main-belt Asteroid          SPK-ID: 2129754
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1700572467305506 3.5021e-08  
a 2.221776301997183 7.3252e-09 au
q 1.843947141228358 7.9836e-08 au
i 3.215085227920704 3.864e-06 deg
node 58.96358950714279 5.9956e-05 deg
peri 7.198123220141026 6.109e-05 deg
M 235.6911841079408 1.2195e-05 deg
tp 2459418.184492077996
(2021-Jul-22.68449208)
4.2198e-05 TDB
period 1209.619897583499
3.31
5.9822e-06
1.638e-08
d
yr
n .297614151949042 1.4718e-09 deg/d
Q 2.599605462766008 8.5709e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1344  
   data-arc span      8893 days (24.35 yr)  
   first obs. used      1996-03-24  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52452  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:41:44  

Additional Information
 Earth MOID = .857691 au 
 Jupiter MOID = 2.6923 au 
 T_jup = 3.628 
[ 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 15.8   n/a MPO333807  
diameter diameter 3.636 km 0.126 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.077   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

129754 (1999 EE)          Discovered 1999-Mar-09 by Comba, P. G. at Prescott
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

Alternate Designations
 1999 EE = 2001 VN81 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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