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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2479820431292192 1.051e-07  
a 2.578678300866427 3.6073e-08 au
q 1.939212387244587 2.8592e-07 au
i 30.21282936557929 1.0374e-05 deg
node 284.8392682193858 3.0724e-05 deg
peri 136.4959999749297 7.5929e-05 deg
M 88.47638957206313 7.1883e-05 deg
tp 2458628.777313717955
(2019-May-25.27731372)
0.00029514 TDB
period 1512.495793609898
4.14
3.1737e-05
8.689e-08
d
yr
n .238017190871508 4.9944e-09 deg/d
Q 3.218144214488267 4.5018e-08 au
  Orbit Determination Parameters
   # obs. used (total)      217  
   data-arc span      7734 days (21.17 yr)  
   first obs. used      1998-11-24  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55722  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 09:23:00  

Additional Information
 Earth MOID = 1.01699 au 
 Jupiter MOID = 2.19866 au 
 T_jup = 3.197 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456461.5 (2013-Jun-18.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2470337117040246 1.0437e-07  
q 1.942680532437677 2.8359e-07 au
tp 2457116.056455916007
(2015-Apr-03.55645592)
0.00027069 TDB
node 284.9202677399412 3.0677e-05 deg
peri 136.4767743656439 7.6309e-05 deg
i 30.20900010375135 1.0384e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      217  
   data-arc span      7734 days (21.17 yr)  
   first obs. used      1998-11-24  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55722  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 09:23:00  

Additional Information
 Jupiter MOID = 2.19866 au 
 T_jup = 3.197 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.08938347246292E-14 -2.949915335075596E-14 -1.987389231772192E-11 -4.837529116019858E-13 -5.241130920683692E-12 -2.830753561325511E-13
q -2.949915335075596E-14 8.042184888293078E-14 5.740253399277149E-11 1.390988925536289E-12 1.506479569427785E-11 8.006565077497101E-13
tp -1.987389231772192E-11 5.740253399277149E-11 7.327080363095411E-8 1.569918224051517E-9 1.926820497208031E-8 8.469590476458678E-10
node -4.837529116019858E-13 1.390988925536289E-12 1.569918224051517E-9 9.410774165584732E-10 -3.737054427453535E-10 1.447247657686688E-10
peri -5.241130920683692E-12 1.506479569427785E-11 1.926820497208031E-8 -3.737054427453535E-10 5.823018862395423E-9 1.144777327629006E-10
i -2.830753561325511E-13 8.006565077497101E-13 8.469590476458678E-10 1.447247657686688E-10 1.144777327629006E-10 1.078209027907744E-10

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

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