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79901 (1999 BK9)
Classification: Main-belt Asteroid          SPK-ID: 2079901
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3311124174951861 2.9272e-08  
a 2.603054476206067 1.1484e-08 au
q 1.741150815717811 7.5393e-08 au
i 7.7958872140442 5.4411e-06 deg
node 291.1931940163707 2.9604e-05 deg
peri 110.4561431001151 3.1404e-05 deg
M 84.0687489958982 1.1949e-05 deg
tp 2458642.275408173022
(2019-Jun-07.77540817)
4.9189e-05 TDB
period 1533.992768989628
4.20
1.0151e-05
2.779e-08
d
yr
n .234681679912426 1.553e-09 deg/d
Q 3.464958136694324 1.5286e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1162  
   data-arc span      9772 days (26.75 yr)  
   first obs. used      1993-07-25  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47838  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:44:20  

Additional Information
 Earth MOID = .768399 au 
 Jupiter MOID = 2.04344 au 
 T_jup = 3.321 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.3   n/a MPO453221  
diameter diameter 2.827 km 0.147 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.462   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

79901 (1999 BK9)          Discovered 1999-Jan-22 by Korlevic, K. at Visnjan
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

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