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487790 (2015 RW237)
Classification: Main-belt Asteroid          SPK-ID: 2487790
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05331615726961782 6.3747e-08  
a 3.042482106565258 7.9803e-08 au
q 2.880268652081626 1.8588e-07 au
i 10.57815197632826 6.8283e-06 deg
node 150.0872110564544 3.8476e-05 deg
peri 208.7138535005765 8.0636e-05 deg
M 351.3814473296162 6.9284e-05 deg
tp 2459046.905805481975
(2020-Jul-16.40580548)
0.00037324 TDB
period 1938.386944123294
5.31
7.6265e-05
2.088e-07
d
yr
n .1857214324990323 7.3071e-09 deg/d
Q 3.204695561048889 8.4058e-08 au
  Orbit Determination Parameters
   # obs. used (total)      107  
   data-arc span      4058 days (11.11 yr)  
   first obs. used      2007-03-12  
   last obs. used      2018-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64383  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 07:09:23  

Additional Information
 Earth MOID = 1.87895 au 
 Jupiter MOID = 2.09579 au 
 T_jup = 3.211 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457088.5 (2015-Mar-07.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05718040277618039 6.4488e-08  
q 2.869403037198063 1.8851e-07 au
tp 2457101.688930318129
(2015-Mar-20.18893032)
0.00034254 TDB
node 150.3288211056752 3.8476e-05 deg
peri 207.5736331975082 7.5676e-05 deg
i 10.57752431026616 6.8315e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      107  
   data-arc span      4058 days (11.11 yr)  
   first obs. used      2007-03-12  
   last obs. used      2018-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64383  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 07:09:23  

Additional Information
 Jupiter MOID = 2.09579 au 
 T_jup = 3.211 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.158661185966054E-15 -1.12520773965897E-14 3.810194022569879E-13 -4.613778391056154E-15 2.516090168733715E-15 -5.608912199025917E-15
q -1.12520773965897E-14 3.55375410035105E-14 -3.361273068454664E-12 1.911116275589188E-14 -4.588705396994465E-13 2.338941732000763E-14
tp 3.810194022569879E-13 -3.361273068454664E-12 1.173344522997839E-7 9.091928797332935E-11 2.238739389766766E-8 -4.597732745836201E-11
node -4.613778391056154E-15 1.911116275589188E-14 9.091928797332935E-11 1.480424537000132E-9 -1.437542034667853E-9 3.216657460130183E-11
peri 2.516090168733715E-15 -4.588705396994465E-13 2.238739389766766E-8 -1.437542034667853E-9 5.726931856486867E-9 -4.017182714471148E-11
i -5.608912199025917E-15 2.338941732000763E-14 -4.597732745836201E-11 3.216657460130183E-11 -4.017182714471148E-11 4.666997766883337E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.4   n/a MPO440946  

487790 (2015 RW237)          Discovered 2007-Mar-12 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2017-03-14

Alternate Designations
 2015 RW237 = 2007 EX83 = 2014 QE51 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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