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49662 (1999 KC3)
Classification: Outer Main-belt Asteroid          SPK-ID: 2049662
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1036903288203049 4.4508e-08  
a 3.216010058129875 2.2701e-08 au
q 2.88254091771298 1.5058e-07 au
i 16.80213258728504 6.0215e-06 deg
node 57.9781892081392 1.584e-05 deg
peri 82.68252272323993 3.8223e-05 deg
M 313.0541648516549 3.2194e-05 deg
tp 2459275.206599536054
(2021-Mar-01.70659954)
0.00018852 TDB
period 2106.563351583396
5.77
2.2305e-05
6.107e-08
d
yr
n .1708944569501821 1.8094e-09 deg/d
Q 3.54947919854677 2.5055e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2209  
   data-arc span      8769 days (24.01 yr)  
   first obs. used      1996-11-12  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41576  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 21:28:26  

Additional Information
 Earth MOID = 1.95764 au 
 Jupiter MOID = 1.72007 au 
 T_jup = 3.115 
[ 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 12.7   n/a MPO502487  
diameter diameter 14.300 km 0.140 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 8.032 h n/a LCDB (Rev. 2020-October); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.086   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49662 (1999 KC3)          Discovered 1999-May-17 by Spacewatch at Kitt Peak
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

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