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30915 (1993 GF1)
Classification: Main-belt Asteroid          SPK-ID: 2030915
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07811118015096956 5.7336e-08  
a 3.035830807193655 3.5425e-08 au
q 2.798698480105088 1.8786e-07 au
i 12.02908288405655 6.7542e-06 deg
node 37.16693934157991 2.6767e-05 deg
peri 241.7848063290674 5.1877e-05 deg
M 78.19737629134079 4.7094e-05 deg
tp 2457180.833354472799
(2015-Jun-07.33335447)
0.00025131 JED
period 1932.034034325037
5.29
3.3818e-05
9.259e-08
d
yr
n .1863321212795132 3.2615e-09 deg/d
Q 3.272963134282222 3.8193e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1092  
   data-arc span      8134 days (22.27 yr)  
   first obs. used      1993-04-15  
   last obs. used      2015-07-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .4872  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 15:18:31  

Additional Information
 Earth MOID = 1.80692 au 
 Jupiter MOID = 1.83369 au 
 T_jup = 3.204 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.1 mag n/a MPO309393  

30915 (1993 GF1)          Discovered 1993-Apr-15 by Holt, H. E. at Palomar
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1993 GF1 = 1998 HD128 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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