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79639 (1998 RP78)
Classification: Main-belt Asteroid          SPK-ID: 2079639
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .118062418187735 3.7929e-08  
a 2.319661700463436 8.1895e-09 au
q 2.045796830729249 9.1027e-08 au
i 7.394085180135884 5.0909e-06 deg
node 150.4077256881295 2.2044e-05 deg
peri 241.8286077588248 2.9713e-05 deg
M 28.15140411049045 1.9698e-05 deg
tp 2458899.590288353271
(2020-Feb-20.09028835)
7.0542e-05 TDB
period 1290.43283419335
3.53
6.8338e-06
1.871e-08
d
yr
n .2789761624633769 1.4774e-09 deg/d
Q 2.593526570197622 9.1564e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1661  
   data-arc span      8381 days (22.95 yr)  
   first obs. used      1997-02-14  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51026  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 18:44:31  

Additional Information
 Earth MOID = 1.06237 au 
 Jupiter MOID = 2.82755 au 
 T_jup = 3.558 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.6   n/a MPO502635  
diameter diameter 3.276 km 0.206 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.026 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.286   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

79639 (1998 RP78)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

Alternate Designations
 1998 RP78 = 2000 CS80 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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