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185529 (2007 WE12)
Classification: Main-belt Asteroid          SPK-ID: 2185529
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09577428244326192 7.9304e-08  
a 3.171995417992407 3.5901e-08 au
q 2.86819983292087 2.5133e-07 au
i 10.47185457003134 6.4073e-06 deg
node 110.24633834 3.9963e-05 deg
peri 269.6658348429074 5.1557e-05 deg
M 107.8239645780705 3.3053e-05 deg
tp 2458382.469299035366
(2018-Sep-20.96929904)
0.00018919 TDB
period 2063.465698167428
5.65
3.5032e-05
9.591e-08
d
yr
n .1744637675924138 2.9619e-09 deg/d
Q 3.475791003063945 3.934e-08 au
  Orbit Determination Parameters
   # obs. used (total)      329  
   data-arc span      6704 days (18.35 yr)  
   first obs. used      2001-09-25  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60178  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 20:06:16  

Additional Information
 Earth MOID = 1.89565 au 
 Jupiter MOID = 2.01278 au 
 T_jup = 3.169 
[ 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 MPO470001  
diameter diameter 4.717 km 0.856 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.087   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

185529 (2007 WE12)          Discovered 2007-Nov-17 by CSS at Catalina
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1923-Oct-29 05:58 00:11 Thisb 0.00595666919173264 0.00593450085476732 0.00597909527688279 4.56403257572531 4.56403232492818 2423721.748950946 11.1607755769713 2250.74148568501 71.9522889859166 60.4607327917439 10770.4923493483 T 20 CATAB v2.0f-lin.ifort 2020-Feb-24 20:06:19 2020-Feb-24 20:06

Alternate Designations
 2007 WE12 = 2003 AF63 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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