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118366 (1999 GK)
Classification: Main-belt Asteroid          SPK-ID: 2118366
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08368369481030234 6.6734e-08  
a 2.551367076103281 1.2787e-08 au
q 2.337859252357601 1.7224e-07 au
i 13.22944644486835 5.6906e-06 deg
node 184.3118953604905 1.8916e-05 deg
peri 332.6810230545446 3.2054e-05 deg
M 142.3007342072609 2.5071e-05 deg
tp 2458612.113787694452
(2019-May-08.61378769)
0.00010279 TDB
period 1488.530875191994
4.08
1.1191e-05
3.064e-08
d
yr
n .2418491990994587 1.8182e-09 deg/d
Q 2.764874899848961 1.3857e-08 au
  Orbit Determination Parameters
   # obs. used (total)      661  
   data-arc span      21875 days (59.89 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-08-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59501  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:12:04  

Additional Information
 Earth MOID = 1.3513 au 
 Jupiter MOID = 2.21901 au 
 T_jup = 3.398 
[ 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 15.56   n/a E2021B55  
rotation period rot_per 2.78 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]

118366 (1999 GK)          Discovered 1999-Apr-05 by Toth, J., Kalmancok, D. at Modra
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 1999 GK = 2003 EZ33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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