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469301 (1997 SK12)
Classification: Main-belt Asteroid          SPK-ID: 2469301
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06305268135460813 1.7526e-07  
a 2.702223806558485 2.6284e-08 au
q 2.531841349934717 4.805e-07 au
i 5.843995090318217 1.5288e-05 deg
node 352.7101456423674 5.2944e-05 deg
peri 13.96723795887877 9.8073e-05 deg
M 47.97706099956233 7.6261e-05 deg
tp 2458784.272194821349
(2019-Oct-27.77219482)
0.00034326 TDB
period 1622.483917158335
4.44
2.3673e-05
6.481e-08
d
yr
n .2218820144796963 3.2373e-09 deg/d
Q 2.872606263182254 2.7942e-08 au
  Orbit Determination Parameters
   # obs. used (total)      88  
   data-arc span      8065 days (22.08 yr)  
   first obs. used      1997-09-27  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57152  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 17:58:28  

Additional Information
 Earth MOID = 1.53007 au 
 Jupiter MOID = 2.42994 au 
 T_jup = 3.357 
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Orbital Elements at Epoch 2457894.5 (2017-May-21.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06375964340371852 1.7821e-07  
q 2.530398100543024 4.8962e-07 au
tp 2457153.904377510097
(2015-May-11.40437751)
0.00032196 TDB
node 352.8309443151903 5.2805e-05 deg
peri 12.29976234463315 9.456e-05 deg
i 5.852782481873311 1.5305e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      88  
   data-arc span      8065 days (22.08 yr)  
   first obs. used      1997-09-27  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57152  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 17:58:28  

Additional Information
 Jupiter MOID = 2.42994 au 
 T_jup = 3.357 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.17594007793012E-14 -8.715336242920427E-14 -3.891445749349799E-11 3.380161895084834E-14 -9.728712873861054E-12 -2.841183231896177E-14
q -8.715336242920427E-14 2.397295277833461E-13 1.06058927233699E-10 -9.438605422885762E-14 2.658843621469583E-11 8.065606508899208E-14
tp -3.891445749349799E-11 1.06058927233699E-10 1.036607169661911E-7 -4.243223446642019E-11 2.524252832559031E-8 2.119612929356599E-11
node 3.380161895084834E-14 -9.438605422885762E-14 -4.243223446642019E-11 2.788357605032862E-9 -2.783490541694961E-9 -4.91101335180776E-12
peri -9.728712873861054E-12 2.658843621469583E-11 2.524252832559031E-8 -2.783490541694961E-9 8.941607281957077E-9 1.014717601103142E-11
i -2.841183231896177E-14 8.065606508899208E-14 2.119612929356599E-11 -4.91101335180776E-12 1.014717601103142E-11 2.342377866148521E-10

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.2   n/a MPO495327  

469301 (1997 SK12)          Discovered 1997-Sep-27 by Spacewatch at Kitt Peak
Reference: Last Updated: 2016-08-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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