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70139 (1999 NK11)
Classification: Main-belt Asteroid          SPK-ID: 2070139
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1439066674484448 2.7321e-08  
a 2.32886549265682 6.3649e-09 au
q 1.993726220672897 6.3869e-08 au
i 3.456376590546824 3.2789e-06 deg
node 121.771800348075 5.6578e-05 deg
peri 171.3316270061839 5.7884e-05 deg
M 328.9371027936475 1.2281e-05 deg
tp 2459112.509406083153
(2020-Sep-20.00940608)
4.4338e-05 TDB
period 1298.120581672232
3.55
5.3218e-06
1.457e-08
d
yr
n .2773240060151038 1.1369e-09 deg/d
Q 2.664004764640744 7.2809e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1743  
   data-arc span      10728 days (29.37 yr)  
   first obs. used      1991-03-21  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4942  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 06:25:59  

Additional Information
 Earth MOID = .977684 au 
 Jupiter MOID = 2.50462 au 
 T_jup = 3.556 
[ 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 14.8   n/a MPO474581  
diameter diameter 4.741 km 1.216 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
rotation period rot_per 5.42 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]
geometric albedo albedo 0.098   0.068 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

70139 (1999 NK11)          Discovered 1999-Jul-13 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 NK11 = 1991 FK3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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