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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07756344569811306 6.1933e-08  
a 3.034174507079196 4.0675e-08 AU
q 2.79883347746076 2.0793e-07 AU
i 12.03037842141558 7.1479e-06 deg
node 37.18115274197481 2.7005e-05 deg
peri 241.9234440311888 5.9789e-05 deg
M 288.9472443783881 5.808e-05 deg
tp 2457181.511149430963
(2015-Jun-08.01114943)
0.0003146 JED
period 1930.453120292859
5.29
3.8818e-05
1.063e-07
d
yr
n .1864847150214071 3.7499e-09 deg/d
Q 3.269515536697633 4.383e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1047  
   data-arc span      7742 days (21.20 yr)  
   first obs. used      1993-04-15  
   last obs. used      2014-06-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48342  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 13:03:43  

Additional Information
 Earth MOID = 1.80696 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 13.0 mag n/a MPO263606  

30915 (1993 GF1)          Discovered 1993-Apr-15 by Holt, H. E. at Palomar (675)
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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