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190827 (2001 SJ39)
Classification: Main-belt Asteroid          SPK-ID: 2190827
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1860530103728668 3.4283e-08  
a 2.353332204607615 8.4636e-09 au
q 1.915487663532953 8.2698e-08 au
i 2.51539677891685 3.7512e-06 deg
node 94.04144275060791 9.551e-05 deg
peri 316.3821949145592 9.6184e-05 deg
M 91.65666577668728 1.1712e-05 deg
tp 2458864.774106847946
(2020-Jan-16.27410685)
4.2193e-05 TDB
period 1318.631007473112
3.61
7.1136e-06
1.948e-08
d
yr
n .2730104160752801 1.4728e-09 deg/d
Q 2.791176745682277 1.0038e-08 au
  Orbit Determination Parameters
   # obs. used (total)      498  
   data-arc span      7146 days (19.56 yr)  
   first obs. used      2001-09-16  
   last obs. used      2021-04-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56946  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:18:22  

Additional Information
 Earth MOID = .926216 au 
 Jupiter MOID = 2.5785 au 
 T_jup = 3.531 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457293.5 (2015-Sep-28.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1856332988372344 3.4321e-08  
q 1.916715132307488 8.2771e-08 au
tp 2457543.450815865914
(2016-Jun-03.95081587)
4.02e-05 TDB
node 94.09106877214694 9.5658e-05 deg
peri 315.7866884103265 9.6335e-05 deg
i 2.514189023911268 3.7467e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      498  
   data-arc span      7146 days (19.56 yr)  
   first obs. used      2001-09-16  
   last obs. used      2021-04-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56946  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:18:22  

Additional Information
 Jupiter MOID = 2.5785 au 
 T_jup = 3.531 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.17790696874576E-15 -2.831531203907058E-15 -2.757866453124871E-13 -1.242072470679708E-14 -6.246527764629484E-14 -7.574309054498683E-16
q -2.831531203907058E-15 6.851081581150702E-15 7.151693296998564E-13 3.072225682525997E-14 1.610823096765668E-13 1.917072761590114E-15
tp -2.757866453124871E-13 7.151693296998564E-13 1.616022870629359E-9 7.1649381024801E-12 4.739877175306639E-10 8.185248751386363E-13
node -1.242072470679708E-14 3.072225682525997E-14 7.1649381024801E-12 9.15045283529284E-9 -9.139498382926761E-9 6.290386739657059E-12
peri -6.246527764629484E-14 1.610823096765668E-13 4.739877175306639E-10 -9.139498382926761E-9 9.280378295991723E-9 -6.063483959521578E-12
i -7.574309054498683E-16 1.917072761590114E-15 8.185248751386363E-13 6.290386739657059E-12 -6.063483959521578E-12 1.403767121879181E-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 17.08   n/a MPCxxxxx  

190827 (2001 SJ39)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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