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295396 (2008 JW7)
Classification: Outer Main-belt Asteroid          SPK-ID: 2295396
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1577948153254162 6.0719e-08  
a 3.963972753866445 7.7992e-08 au
q 3.338478405215108 2.7908e-07 au
i 9.570799152317782 8.3574e-06 deg
node 150.6044132985741 3.857e-05 deg
peri 272.1723906663798 4.7922e-05 deg
M 347.5289234850939 2.8e-05 deg
tp 2459100.360988562947
(2020-Sep-07.86098856)
0.00022517 TDB
period 2882.666611795022
7.89
8.5075e-05
2.329e-07
d
yr
n .1248843687046522 3.6857e-09 deg/d
Q 4.589467102517783 9.0298e-08 au
  Orbit Determination Parameters
   # obs. used (total)      214  
   data-arc span      5424 days (14.85 yr)  
   first obs. used      2006-01-09  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59259  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 00:35:06  

Additional Information
 Earth MOID = 2.37107 au 
 Jupiter MOID = .987326 au 
 T_jup = 3.012 
[ 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 14.6   n/a MPO455183  
diameter diameter 7.546 km 0.814 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
geometric albedo albedo 0.045   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

295396 (2008 JW7)          Discovered 2008-May-05 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

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