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56213 (1999 GW50)
Classification: Main-belt Asteroid          SPK-ID: 2056213
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04613059689407951 4.1037e-08  
a 2.640347089348114 1.1851e-08 au
q 2.51854630210894 1.0402e-07 au
i 11.5503945722235 4.5978e-06 deg
node 187.1107989164004 1.5496e-05 deg
peri 249.7208527467853 5.8283e-05 deg
M 97.25652703488979 5.3455e-05 deg
tp 2458577.143516590646
(2019-Apr-03.64351659)		 0.0002333 TDB
period 1567.075636709631
4.29		 1.0551e-05
2.889e-08		 d
yr
n .22972726495569 1.5467e-09 deg/d
Q 2.762147876587288 1.2398e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1552  
   data-arc span      7767 days (21.26 yr)  
   first obs. used      1999-02-18  
   last obs. used      2020-05-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51732  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:00:21  

Additional Information
 Earth MOID = 1.55607 au 
 Jupiter MOID = 2.35849 au 
 T_jup = 3.365 
[ 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 14.3   n/a MPO452934  
rotation period rot_per 2.417 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2019) Minor Planet Bull. 46, 46-51.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

56213 (1999 GW50)          Discovered 1999-Apr-10 by LONEOS at Anderson Mesa
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 GW50 = 2000 OX39 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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