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49447 (1998 YW11)
Classification: Outer Main-belt Asteroid          SPK-ID: 2049447
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08750960257035927 3.6099e-08  
a 3.220029021246315 2.6142e-08 au
q 2.938245561332027 1.1333e-07 au
i 8.343072599595295 5.2936e-06 deg
node 310.2905278799272 2.7533e-05 deg
peri 268.4088483118514 4.0976e-05 deg
M 72.43783564685604 3.0032e-05 deg
tp 2458175.830500241040
(2018-Feb-26.33050024)
0.00017577 TDB
period 2110.513360152568
5.78
2.5701e-05
7.037e-08
d
yr
n .1705746131708807 2.0772e-09 deg/d
Q 3.501812481160603 2.8429e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1133  
   data-arc span      8509 days (23.30 yr)  
   first obs. used      1996-08-19  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53187  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:20:00  

Additional Information
 Earth MOID = 1.94678 au 
 Jupiter MOID = 1.61412 au 
 T_jup = 3.167 
[ 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 13.6   n/a MPO449318  
diameter diameter 9.461 km 0.303 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.383 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.086   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49447 (1998 YW11)          Discovered 1998-Dec-26 by Kobayashi, T. at Oizumi
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 YW11 = 2000 CK71 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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