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JPL Small-Body Database Browser
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18297 (1978 VG4)
Classification: Main-belt Asteroid          SPK-ID: 2018297
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .009285621612053206 4.3608e-08  
a 2.720890351191189 1.3233e-08 au
q 2.695625192942141 1.2228e-07 au
i 3.393437657831955 3.8191e-06 deg
node 57.66492457447342 7.6779e-05 deg
peri 133.8931579878336 0.00023398 deg
M 326.4670271419778 0.00022055 deg
tp 2459153.198420350835
(2020-Oct-30.69842035)
0.0010043 TDB
period 1639.324719554342
4.49
1.1959e-05
3.274e-08
d
yr
n .2196026178985868 1.6021e-09 deg/d
Q 2.746155509440237 1.3356e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1204  
   data-arc span      15150 days (41.48 yr)  
   first obs. used      1978-11-05  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5435  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:47:16  

Additional Information
 Earth MOID = 1.69095 au 
 Jupiter MOID = 2.20965 au 
 T_jup = 3.356 
[ 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 14.8   n/a MPO365472  

18297 (1978 VG4)          Discovered 1978-Nov-07 by Helin, E. F., Bus, S. J. at Palomar
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1978 VG4 = 1998 FC36 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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