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390270 (2012 XF145)
Classification: Main-belt Asteroid          SPK-ID: 2390270
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07284772499972218 6.5136e-08  
a 3.194054020808343 4.2377e-08 au
q 2.961374451866241 2.038e-07 au
i 4.03651987089505 6.2804e-06 deg
node 95.80630913078258 0.00010541 deg
peri 328.4932861420299 0.00011659 deg
M 148.3130801374574 5.1949e-05 deg
tp 2458141.508698464850
(2018-Jan-23.00869846)
0.00029391 TDB
period 2085.027620396335
5.71
4.1494e-05
1.136e-07
d
yr
n .1726595832488631 3.4361e-09 deg/d
Q 3.426733589750446 4.5464e-08 au
  Orbit Determination Parameters
   # obs. used (total)      236  
   data-arc span      8886 days (24.33 yr)  
   first obs. used      1996-01-26  
   last obs. used      2020-05-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50531  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:42:22  

Additional Information
 Earth MOID = 1.97584 au 
 Jupiter MOID = 1.80811 au 
 T_jup = 3.188 
[ 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 15.8   n/a MPO434437  
diameter diameter 4.470 km 1.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.024   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

390270 (2012 XF145)          Discovered 2005-Jul-05 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-03-21

[ show close-approach data ]
Alternate Designations
 2012 XF145 = 2010 HM71 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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