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390990 (2005 SP68)
Classification: Main-belt Asteroid          SPK-ID: 2390990
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1853526477938067 2.8347e-07  
a 3.160572345011518 6.4322e-08 au
q 2.574751892319752 9.3266e-07 au
i 18.35292251524433 2.6188e-05 deg
node 9.67043608584402 3.1844e-05 deg
peri 333.9606113557411 4.7425e-05 deg
M 240.5700041156696 2.8479e-05 deg
tp 2459681.360198389145
(2022-Apr-11.86019839)
0.00016271 TDB
period 2052.32922939631
5.62
6.2652e-05
1.715e-07
d
yr
n .1754104530811041 5.3548e-09 deg/d
Q 3.746392797703284 7.6245e-08 au
  Orbit Determination Parameters
   # obs. used (total)      72  
   data-arc span      4894 days (13.40 yr)  
   first obs. used      2003-04-04  
   last obs. used      2016-08-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .7076  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 11:43:57  

Additional Information
 Earth MOID = 1.58098 au 
 Jupiter MOID = 1.74002 au 
 T_jup = 3.100 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456336.5 (2013-Feb-13.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1841885211937017 2.8457e-07  
q 2.579503622714225 9.3715e-07 au
tp 2455577.870107721687
(2011-Jan-16.37010772)
0.00019577 TDB
node 9.705014335110432 3.1847e-05 deg
peri 334.4969555912475 4.7158e-05 deg
i 18.34854540491441 2.6181e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      72  
   data-arc span      4894 days (13.40 yr)  
   first obs. used      2003-04-04  
   last obs. used      2016-08-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .7076  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 11:43:57  

Additional Information
 Jupiter MOID = 1.74002 au 
 T_jup = 3.100 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.0978424272147E-14 -2.664592763095236E-13 4.005829925818052E-11 5.296957833958144E-14 6.314072193283954E-12 -9.913834889403896E-13
q -2.664592763095236E-13 8.782490885406568E-13 -1.32656288948718E-10 -1.94541957326691E-13 -2.079816226310794E-11 3.286838163788223E-12
tp 4.005829925818052E-11 -1.32656288948718E-10 3.832449236926342E-8 1.024382467460907E-10 6.804908907752646E-9 -5.826180399575108E-10
node 5.296957833958144E-14 -1.94541957326691E-13 1.024382467460907E-10 1.014261641966216E-9 -9.457448233247435E-10 -3.981649532421989E-10
peri 6.314072193283954E-12 -2.079816226310794E-11 6.804908907752646E-9 -9.457448233247435E-10 2.223874118940223E-9 2.87543686628205E-10
i -9.913834889403896E-13 3.286838163788223E-12 -5.826180399575108E-10 -3.981649532421989E-10 2.87543686628205E-10 6.854242605694955E-10

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 16.0   n/a MPO460511  

390990 (2005 SP68)          Discovered 2005-Sep-27 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

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