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118708 (2000 PO21)
Classification: Main-belt Asteroid          SPK-ID: 2118708
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1743642588384709 4.2323e-08  
a 2.621063905604087 1.4362e-08 au
q 2.164044040335162 1.1194e-07 au
i 3.987664258076983 6.0055e-06 deg
node 319.8050866097055 5.3886e-05 deg
peri 318.0606333879504 5.6153e-05 deg
M 313.0951435698851 1.6387e-05 deg
tp 2459402.443626876378
(2021-Jul-06.94362688)
7.0948e-05 TDB
period 1549.939840106192
4.24
1.2739e-05
3.488e-08
d
yr
n .2322670794598939 1.9091e-09 deg/d
Q 3.078083770873011 1.6866e-08 au
  Orbit Determination Parameters
   # obs. used (total)      752  
   data-arc span      8624 days (23.61 yr)  
   first obs. used      1996-09-10  
   last obs. used      2020-04-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57203  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:58:30  

Additional Information
 Earth MOID = 1.14776 au 
 Jupiter MOID = 2.06686 au 
 T_jup = 3.380 
[ show covariance matrix ]

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 15.53   n/a E2021B55  

118708 (2000 PO21)          Discovered 2000-Aug-01 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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