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115991 (2003 WH64)
Classification: Main-belt Asteroid          SPK-ID: 2115991
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1750918838838905 4.2973e-08  
a 2.260188685385313 1.148e-08 au
q 1.864447990528145 9.6909e-08 au
i 2.842130381541306 4.6698e-06 deg
node 77.60869867473815 8.2353e-05 deg
peri 179.8735894087089 8.3688e-05 deg
M 168.308960660971 1.9329e-05 deg
tp 2458620.243239601739
(2019-May-16.74323960)
6.401e-05 TDB
period 1241.124851125137
3.40
9.4561e-06
2.589e-08
d
yr
n .2900594566885381 2.21e-09 deg/d
Q 2.655929380242482 1.349e-08 au
  Orbit Determination Parameters
   # obs. used (total)      756  
   data-arc span      7866 days (21.54 yr)  
   first obs. used      1999-09-09  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58436  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 08:57:19  

Additional Information
 Earth MOID = .847706 au 
 Jupiter MOID = 2.3959 au 
 T_jup = 3.598 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457274.5 (2015-Sep-09.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1747877691210915 4.2979e-08  
q 1.86503317265422 9.6907e-08 au
tp 2457379.312445866818
(2015-Dec-22.81244587)
5.9264e-05 TDB
node 77.61425763668153 8.2349e-05 deg
peri 179.9199410889015 8.3691e-05 deg
i 2.842380266587444 4.6699e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      756  
   data-arc span      7866 days (21.54 yr)  
   first obs. used      1999-09-09  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58436  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 08:57:19  

Additional Information
 Jupiter MOID = 2.3959 au 
 T_jup = 3.598 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.847203876934984E-15 -4.144974851161701E-15 -6.514775399526766E-13 4.073812525955574E-16 -1.534951084857907E-13 2.732056295122649E-16
q -4.144974851161701E-15 9.39105010429495E-15 1.730488427433526E-12 -2.477108877527664E-15 4.084612006527822E-13 -4.508139014376579E-16
tp -6.514775399526766E-13 1.730488427433526E-12 3.512234036572407E-9 -1.130605062771535E-11 8.988602131132591E-10 1.187179991867456E-12
node 4.073812525955574E-16 -2.477108877527664E-15 -1.130605062771535E-11 6.781367069469087E-9 -6.775486807295818E-9 -6.782782319832766E-11
peri -1.534951084857907E-13 4.084612006527822E-13 8.988602131132591E-10 -6.775486807295818E-9 7.004128683754362E-9 6.805703845935597E-11
i 2.732056295122649E-16 -4.508139014376579E-16 1.187179991867456E-12 -6.782782319832766E-11 6.805703845935597E-11 2.18075825348579E-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 16.05   n/a MPCxxxxx  

115991 (2003 WH64)          Discovered 2003-Nov-19 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 2003 WH64 = 1999 RA184 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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