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181628 (2006 XJ7)
Classification: Main-belt Asteroid          SPK-ID: 2181628
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1321681745660065 7.9699e-08  
a 2.898435462421822 2.1079e-08 au
q 2.515354538256151 2.3113e-07 au
i 7.149489034780925 3.9663e-06 deg
node 70.04829413630762 6.1495e-05 deg
peri 297.2450629997775 6.4994e-05 deg
M 5.668878506840549 1.8489e-05 deg
tp 2459172.118292001330
(2020-Nov-18.61829200)
9.2609e-05 TDB
period 1802.369704553021
4.93
1.9662e-05
5.383e-08
d
yr
n .1997370456741439 2.1789e-09 deg/d
Q 3.281516386587493 2.3865e-08 au
  Orbit Determination Parameters
   # obs. used (total)      309  
   data-arc span      6936 days (18.99 yr)  
   first obs. used      2001-11-20  
   last obs. used      2020-11-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59513  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:31:23  

Additional Information
 Earth MOID = 1.52321 au 
 Jupiter MOID = 2.2124 au 
 T_jup = 3.263 
[ 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 16.09   n/a E2021B55  
diameter diameter 4.130 km 0.190 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.045   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

181628 (2006 XJ7)          Discovered 2006-Dec-09 by Spacewatch at Kitt Peak
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

[ show close-approach data ]
Alternate Designations
 2006 XJ7 = 2001 WT85 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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