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385630 (2005 OP21)
Classification: Main-belt Asteroid          SPK-ID: 2385630
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2459532259720316 6.9481e-08  
a 2.364785756047274 9.9862e-09 au
q 1.783159070614737 1.6212e-07 au
i 4.003109554826607 6.6572e-06 deg
node 334.7661049685543 7.3853e-05 deg
peri 25.7628560969085 7.4752e-05 deg
M 112.9260082455808 1.2014e-05 deg
tp 2458979.844034627937
(2020-May-10.34403463)
4.2573e-05 TDB
period 1328.269278833846
3.64
8.4136e-06
2.304e-08
d
yr
n .2710293806659911 1.7168e-09 deg/d
Q 2.946412441479811 1.2442e-08 au
  Orbit Determination Parameters
   # obs. used (total)      275  
   data-arc span      5652 days (15.47 yr)  
   first obs. used      2005-07-28  
   last obs. used      2021-01-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54267  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 11:06:05  

Additional Information
 Earth MOID = .780034 au 
 Jupiter MOID = 2.51493 au 
 T_jup = 3.504 
[ 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 17.10   n/a MPCxxxxx  

385630 (2005 OP21)          Discovered 2005-Jul-28 by NEAT at Palomar
Reference: Last Updated: 2014-02-19

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