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78905 Seanokeefe (2003 SK85)
Classification: Main-belt Asteroid          SPK-ID: 2078905
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2530031805823458 4.2319e-08  
a 2.414960685031491 9.7286e-09 au
q 1.803967950737203 1.013e-07 au
i 21.43852530327779 4.8126e-06 deg
node 211.5656103266238 1.1728e-05 deg
peri 292.1670737215287 1.4443e-05 deg
M 138.5520890443307 7.5145e-06 deg
tp 2458868.937276221622
(2020-Jan-20.43727622)
2.8318e-05 TDB
period 1370.766632753181
3.75
8.2831e-06
2.268e-08
d
yr
n .2626267603822111 1.587e-09 deg/d
Q 3.025953419325779 1.219e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1370  
   data-arc span      8399 days (23.00 yr)  
   first obs. used      1998-06-19  
   last obs. used      2021-06-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46862  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:07:21  

Additional Information
 Earth MOID = .911023 au 
 Jupiter MOID = 2.2652 au 
 T_jup = 3.382 
[ 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 14.65   n/a E2021B10  
diameter diameter 3.584 km 1.250 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.181   0.115 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78905 Seanokeefe           Discovered 2003 Sept. 16 by the Near-Earth Tracking (NEAT) project at Palomar Observatory.
Named in honor of Sean O'Keefe (b. 1956), for his vision and leadership in advancing the spirit of exploration during his tenure as the tenth NASA administrator, 2001-2004.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050407/MPCPages.arcLast Updated: 2005-04-15

Alternate Designations
 2003 SK85 = 2001 CP42 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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