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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1901260050757262 6.6949e-08  
a 2.430606492038585 1.2451e-08 au
q 1.968484989796164 1.6672e-07 au
i 3.418129363342014 5.7906e-06 deg
node 117.8616844109434 0.00010547 deg
peri 238.7909798021472 0.00010632 deg
M 18.83664517539718 1.4361e-05 deg
tp 2457328.077841676798
(2015-Nov-01.57784168)
5.5037e-05 JED
period 1384.109365207228
3.79
1.0636e-05
2.912e-08
d
yr
n .2600950539382421 1.9986e-09 deg/d
Q 2.892727994281005 1.4818e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1166  
   data-arc span      12513 days (34.26 yr)  
   first obs. used      1981-08-30  
   last obs. used      2015-12-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5227  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:03:33  

Additional Information
 Earth MOID = .964761 au 
 Jupiter MOID = 2.54203 au 
 T_jup = 3.480 
[ 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. 2015-December); 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. (2015) 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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