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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 2456400.5 (2013-Apr-18.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07711729735370348 6.6671e-08  
a 3.034816640245584 4.6056e-08 AU
q 2.800779782985797 2.0813e-07 AU
i 12.03000731272147 8.2337e-06 deg
node 37.18987247357142 3.0356e-05 deg
peri 241.8747272249153 6.6131e-05 deg
M 214.3609587093584 6.3781e-05 deg
tp 2457181.718326038797
(2015-Jun-08.21832604)		 0.00034934 JED
period 1931.06597572775
5.29		 4.3958e-05
1.204e-07		 d
yr
n .1864255310408692 4.2438e-09 deg/d
Q 3.26885349750537 4.9608e-08 AU
   Orbit Determination Parameters
   # obs. used (total)      944  
   data-arc span      7311 days (20.02 yr)  
   first obs. used      1993-04-15  
   last obs. used      2013-04-21  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   fit RMS      .51899  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Apr-29 14:56:16  

Additional Information
 Earth MOID = 1.80937 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 12.7 mag n/a PDS3 (MPO 18581)  

30915 (1993 GF1)          Discovered 1993-Apr-15 by Holt, H. E. at Palomar (675)
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

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