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295257 (2008 GK50)
Classification: Main-belt Asteroid          SPK-ID: 2295257
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01530056834191794 5.6283e-08  
a 2.809726009338899 3.5655e-08 au
q 2.766735604510945 1.5363e-07 au
i 4.842139605291464 7.2872e-06 deg
node 38.19052415053869 8.6678e-05 deg
peri 211.0993706665083 0.00029839 deg
M 156.0233989311122 0.00028654 deg
tp 2458254.941684662334
(2018-May-16.44168466)
0.0013665 TDB
period 1720.261161853453
4.71
3.2745e-05
8.965e-08
d
yr
n .2092705502995411 3.9835e-09 deg/d
Q 2.852716414166853 3.6201e-08 au
  Orbit Determination Parameters
   # obs. used (total)      131  
   data-arc span      6038 days (16.53 yr)  
   first obs. used      2003-03-23  
   last obs. used      2019-10-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6374  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 06:59:35  

Additional Information
 Earth MOID = 1.75428 au 
 Jupiter MOID = 2.11908 au 
 T_jup = 3.316 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456862.5 (2014-Jul-24.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01640497906782048 5.4295e-08  
q 2.764429032322231 1.4718e-07 au
tp 2456569.107669667730
(2013-Oct-03.60766967)
0.0012974 TDB
node 38.21752358555873 8.6637e-05 deg
peri 218.4378789263977 0.00028561 deg
i 4.844483246738212 7.2919e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      131  
   data-arc span      6038 days (16.53 yr)  
   first obs. used      2003-03-23  
   last obs. used      2019-10-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6374  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 06:59:35  

Additional Information
 Jupiter MOID = 2.11908 au 
 T_jup = 3.316 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.947975829662004E-15 -7.776524137914503E-15 -7.724344655182546E-12 -9.142612865190347E-15 -1.664132573166151E-12 7.637086102825285E-16
q -7.776524137914503E-15 2.166141222964409E-14 2.754631629453749E-11 2.555794492046255E-14 5.927771125123268E-12 -1.609471034933387E-15
tp -7.724344655182546E-12 2.754631629453749E-11 1.68337274585833E-6 2.652099014533494E-10 3.53179945051267E-7 -1.340798032177233E-10
node -9.142612865190347E-15 2.555794492046255E-14 2.652099014533494E-10 7.505919386711443E-9 -7.422872221802167E-9 -2.428384769117108E-10
peri -1.664132573166151E-12 5.927771125123268E-12 3.53179945051267E-7 -7.422872221802167E-9 8.157534621325022E-8 2.139083754129334E-10
i 7.637086102825285E-16 -1.609471034933387E-15 -1.340798032177233E-10 -2.428384769117108E-10 2.139083754129334E-10 5.317116586532158E-11

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 16.8   n/a MPO494580  

295257 (2008 GK50)          Discovered 2008-Apr-05 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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