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245588 (2005 UM399)
Classification: Main-belt Asteroid          SPK-ID: 2245588
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1505303322432805 4.5144e-08  
a 3.098396623642961 4.2032e-08 au
q 2.631993950464528 1.4703e-07 au
i 14.60240609171584 6.1603e-06 deg
node 64.36055548274909 2.2775e-05 deg
peri 238.805377108364 3.1811e-05 deg
M 333.685885530253 2.4455e-05 deg
tp 2459146.109664691129
(2020-Oct-23.60966469)
0.00013676 TDB
period 1992.067008337761
5.45
4.0536e-05
1.11e-07
d
yr
n .1807168124833283 3.6773e-09 deg/d
Q 3.564799296821394 4.8359e-08 au
  Orbit Determination Parameters
   # obs. used (total)      279  
   data-arc span      5887 days (16.12 yr)  
   first obs. used      2003-03-24  
   last obs. used      2019-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56826  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 08:38:53  

Additional Information
 Earth MOID = 1.6508 au 
 Jupiter MOID = 1.72377 au 
 T_jup = 3.156 
[ 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 15.2   n/a MPO475979  
diameter diameter 3.153 km 0.704 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.162   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

245588 (2005 UM399)          Discovered 2005-Oct-31 by Spacewatch at Kitt Peak
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

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