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243609 (1998 YY11)
Classification: Main-belt Asteroid          SPK-ID: 2243609
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2479820525364944 1.0214e-07  
a 2.578678297496231 3.5034e-08 au
q 1.939212360451803 2.7714e-07 au
i 30.21282837096311 1.0304e-05 deg
node 284.8392699773577 3.0474e-05 deg
peri 136.4959918784208 7.4481e-05 deg
M 88.47639620839975 7.0326e-05 deg
tp 2458628.777286564935
(2019-May-25.27728656)
0.00028884 TDB
period 1512.49579064477
4.14
3.0823e-05
8.439e-08
d
yr
n .2380171913381217 4.8506e-09 deg/d
Q 3.218144234540659 4.3722e-08 au
  Orbit Determination Parameters
   # obs. used (total)      221  
   data-arc span      7758 days (21.24 yr)  
   first obs. used      1998-11-24  
   last obs. used      2020-02-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55425  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 00:55:26  

Additional Information
 Earth MOID = 1.01699 au 
 Jupiter MOID = 2.19866 au 
 T_jup = 3.197 
[ 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 15.6   n/a MPO454788  
diameter diameter 4.289 km 0.087 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.080   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243609 (1998 YY11)          Discovered 1998-Dec-26 by Kobayashi, T. at Oizumi
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

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