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305138 (2007 VY157)
Classification: Main-belt Asteroid          SPK-ID: 2305138
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 .1472169420432483 7.4615e-08  
a 2.671969404649599 3.4108e-08 au
q 2.278610239663966 1.9664e-07 au
i 7.67903323169778 7.8219e-06 deg
node 78.99086951148951 4.7491e-05 deg
peri 154.9568539758357 5.5665e-05 deg
M 136.4524976484712 2.6243e-05 deg
tp 2458395.821346939853
(2018-Oct-04.32134694)
0.00011228 TDB
period 1595.312059896851
4.37
3.0546e-05
8.363e-08
d
yr
n .2256611788061557 4.3209e-09 deg/d
Q 3.065328569635231 3.9129e-08 au
  Orbit Determination Parameters
   # obs. used (total)      194  
   data-arc span      5270 days (14.43 yr)  
   first obs. used      2005-03-18  
   last obs. used      2019-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59665  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:54:19  

Additional Information
 Earth MOID = 1.26958 au 
 Jupiter MOID = 1.94334 au 
 T_jup = 3.352 
[ 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 16.3   n/a MPO437355  
diameter diameter 2.233 km 0.311 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.129   0.069 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

305138 (2007 VY157)          Discovered 2007-Nov-05 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

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