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47439 (1999 XB178)
Classification: Main-belt Asteroid          SPK-ID: 2047439
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1436317702939898 3.7579e-08  
a 2.561229235644859 1.3162e-08 au
q 2.193355346400466 9.6449e-08 au
i 8.613030884634638 6.2508e-06 deg
node 321.3233782364135 2.4875e-05 deg
peri 307.7170194158841 3.3695e-05 deg
M 99.56333111111375 2.2009e-05 deg
tp 2458186.435478387106
(2018-Mar-08.93547839)
9.1299e-05 TDB
period 1497.16995320582
4.10
1.1541e-05
3.16e-08
d
yr
n .2404536634128603 1.8535e-09 deg/d
Q 2.929103124889253 1.5052e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1301  
   data-arc span      7726 days (21.15 yr)  
   first obs. used      1998-10-12  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53203  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:03:31  

Additional Information
 Earth MOID = 1.18903 au 
 Jupiter MOID = 2.23617 au 
 T_jup = 3.405 
[ 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 14.3   n/a MPO449302  
diameter diameter 3.906 km 0.098 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.265   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

47439 (1999 XB178)          Discovered 1999-Dec-10 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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