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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1581070711589786 5.4358e-08  
a 3.965458570800854 6.8751e-08 au
q 3.338491530369262 2.4244e-07 au
i 9.57078237217236 7.5396e-06 deg
node 150.5996017921858 3.7175e-05 deg
peri 272.1617551931307 4.5541e-05 deg
M 12.50992603193315 2.4236e-05 deg
tp 2459100.271600969340
(2020-Sep-07.77160097)
0.00019384 TDB
period 2884.287529673081
7.90
7.5009e-05
2.054e-07
d
yr
n .1248141859285451 3.2459e-09 deg/d
Q 4.592425611232446 7.962e-08 au
  Orbit Determination Parameters
   # obs. used (total)      255  
   data-arc span      5509 days (15.08 yr)  
   first obs. used      2006-01-09  
   last obs. used      2021-02-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57369  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 05:14:19  

Additional Information
 Earth MOID = 2.37046 au 
 Jupiter MOID = .985699 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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