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164688 (1997 SO1)
Classification: Main-belt Asteroid          SPK-ID: 2164688
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1031631782089198 4.0029e-08  
a 2.198609902746833 6.773e-09 au
q 1.971794317537866 8.6603e-08 au
i 4.978287777802309 4.2132e-06 deg
node 192.225996231603 3.9306e-05 deg
peri 182.5552508657414 4.3334e-05 deg
M 95.08536857704804 1.6979e-05 deg
tp 2459081.991860151029
(2020-Aug-20.49186015)
5.611e-05 TDB
period 1190.750291448725
3.26
5.5023e-06
1.506e-08
d
yr
n .3023303899947035 1.397e-09 deg/d
Q 2.4254254879558 7.4718e-09 au
  Orbit Determination Parameters
   # obs. used (total)      569  
   data-arc span      9067 days (24.82 yr)  
   first obs. used      1996-04-12  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54875  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 02:09:47  

Additional Information
 Earth MOID = .971646 au 
 Jupiter MOID = 2.98156 au 
 T_jup = 3.655 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457284.5 (2015-Sep-19.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1037550861640302 4.0056e-08  
q 1.970296430160707 8.6689e-08 au
tp 2456701.059379885138
(2014-Feb-12.55937988)
5.6509e-05 TDB
node 192.2873781512101 3.9288e-05 deg
peri 182.5415681632685 4.3262e-05 deg
i 4.979411620556973 4.215e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      569  
   data-arc span      9067 days (24.82 yr)  
   first obs. used      1996-04-12  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54875  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 02:09:47  

Additional Information
 Jupiter MOID = 2.98156 au 
 T_jup = 3.655 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.604443730334505E-15 -3.4643669786949E-15 3.30711995595561E-14 7.51834718717353E-15 -2.03623493330472E-14 2.363443825573295E-16
q -3.4643669786949E-15 7.514917622185085E-15 -1.36320151845635E-13 -1.658144028144334E-14 2.827498323132778E-14 -3.65175657127873E-16
tp 3.30711995595561E-14 -1.36320151845635E-13 3.193288716215986E-9 -1.071403162317655E-12 1.029572775637419E-9 -9.263455105153043E-13
node 7.51834718717353E-15 -1.658144028144334E-14 -1.071403162317655E-12 1.543570011720544E-9 -1.537777461584208E-9 2.419073131094374E-11
peri -2.03623493330472E-14 2.827498323132778E-14 1.029572775637419E-9 -1.537777461584208E-9 1.87157641619395E-9 -2.439244750483502E-11
i 2.363443825573295E-16 -3.65175657127873E-16 -9.263455105153043E-13 2.419073131094374E-11 -2.439244750483502E-11 1.77661117822199E-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 17.01   n/a MPCxxxxx  

164688 (1997 SO1)          Discovered 1997-Sep-21 by Sarounova, L. at Ondrejov
Reference: 20071026/Numbers.arcLast Updated: 2007-10-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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