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7380 (1981 RF)
Classification: Main-belt Asteroid          SPK-ID: 2007380
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1900540793293602 6.6774e-08  
a 2.430270452103002 1.2341e-08 au
q 1.968387638807218 1.6618e-07 au
i 3.418177263580523 5.7525e-06 deg
node 117.8597817613234 0.00010541 deg
peri 238.7613067951493 0.00010626 deg
M 70.89269610666361 1.4334e-05 deg
tp 2457327.991954218152
(2015-Nov-01.49195422)
5.4443e-05 JED
period 1383.82233811311
3.79
1.054e-05
2.886e-08
d
yr
n .2601490018515473 1.9815e-09 deg/d
Q 2.892153265398786 1.4686e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1181  
   data-arc span      12572 days (34.42 yr)  
   first obs. used      1981-08-30  
   last obs. used      2016-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53381  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 18:24:08  

Additional Information
 Earth MOID = .965555 au 
 Jupiter MOID = 2.54275 au 
 T_jup = 3.481 
[ 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 14.2 mag n/a MPO358703  
rotation period rot_per 4.37 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Published Reference List:
[Chang, C.-K.; Ip, W.-H.; Cheng, Y.-C.; Ngeow, C.-C.; et al. (2014) Astrophys. J. 788, A17.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2016) Astron. J. 150, A75.]

7380 (1981 RF)          Discovered 1981-Sep-03 by Thomas, N. G. at Anderson Mesa
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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