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1278 Kenya (1933 LA)
Classification: Main-belt Asteroid          SPK-ID: 2001278
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .262840197263052 3.9012e-08  
a 2.405011420611599 6.1104e-09 au
q 1.772877744398153 9.3653e-08 au
i 10.85562873222292 4.071e-06 deg
node 90.28723815617185 2.2204e-05 deg
peri 238.5118234910802 2.3281e-05 deg
M 71.24224786550157 7.2195e-06 deg
tp 2458730.906600736502
(2019-Sep-04.40660074)
2.7204e-05 TDB
period 1362.30434387875
3.73
5.1918e-06
1.421e-08
d
yr
n .2642581311713421 1.0071e-09 deg/d
Q 3.037145096825045 7.7164e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2731  
   data-arc span      42036 days (115.09 yr)  
   first obs. used      1905-01-01  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41404  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:50:17  

Additional Information
 Earth MOID = .788405 au 
 Jupiter MOID = 2.36918 au 
 T_jup = 3.452 
[ 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 10.8   n/a MPO435708  
diameter diameter 19.361 km 0.107 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 188. h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Oey, J.; Pilcher, F.; Benishek, V.; Higgins, D.; Pravec, P. (2012) Minor Planet Bull. 39, 86-88.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
geometric albedo albedo 0.195   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

1278 Kenya (1933 LA)          Discovered 1933-Jun-15 by Jackson, C. at Johannesburg (UO)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1933 LA = A905 AA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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