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385749 (2005 XR85)
Classification: Main-belt Asteroid          SPK-ID: 2385749
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2529130322151225 9.2565e-08  
a 2.63528266416579 3.2409e-08 au
q 1.968785334827674 2.5086e-07 au
i 18.0859795456335 8.8653e-06 deg
node 279.4685005898226 2.4492e-05 deg
peri 333.5861780418182 2.9146e-05 deg
M 30.35522439761882 1.6117e-05 deg
tp 2459068.744066779230
(2020-Aug-07.24406678)
6.9817e-05 TDB
period 1562.56910962575
4.28
2.8825e-05
7.892e-08
d
yr
n .2303898098217386 4.25e-09 deg/d
Q 3.301779993503906 4.0606e-08 au
  Orbit Determination Parameters
   # obs. used (total)      176  
   data-arc span      7690 days (21.05 yr)  
   first obs. used      1999-06-08  
   last obs. used      2020-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56039  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 11:06:31  

Additional Information
 Earth MOID = .965442 au 
 Jupiter MOID = 1.86335 au 
 T_jup = 3.284 
[ 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 16.08   n/a E2021B25  

385749 (2005 XR85)          Discovered 2005-Dec-02 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-02-19

[ show close-approach data ]
Alternate Designations
 2005 XR85 = 2013 WO49 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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