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(2017 GK4)
Classification: Apollo [NEO, PHA]          SPK-ID: 3773752
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3858445847627666 1.27e-07  
a 1.32012104929318 1.6161e-08 au
q .8107594911920651 1.6113e-07 au
i 16.35637202796084 1.5569e-05 deg
node 202.6358907479631 8.8371e-06 deg
peri 83.10255001787793 2.8965e-05 deg
M 236.6208336063401 2.379e-05 deg
tp 2459586.370892407338
(2022-Jan-06.87089241)
3.9913e-05 TDB
period 554.0118584409076
1.52
1.0173e-05
2.785e-08
d
yr
n .6498055854131117 1.1932e-08 deg/d
Q 1.829482607394294 2.2397e-08 au
  Orbit Determination Parameters
   # obs. used (total)      156  
   data-arc span      1348 days (3.69 yr)  
   first obs. used      2017-03-16  
   last obs. used      2020-11-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .32911  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 18:59:32  

Additional Information
 Earth MOID = .0424464 au 
 Jupiter MOID = 3.42409 au 
 T_jup = 4.833 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 21.6   n/a E2020-WC4  
rotation period rot_per 0.301 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:
[Carbognani, A.; Bacci, P.; Buzzi, L. (2018) Minor Planet Bull. 45, 6-10.]

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