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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 
[ 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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2040-Jun-11 01:28 00:03 Iris 0.022787625623645 0.022767966122717 0.0228073764110661 9.67628866561473 9.67628863954328 2466316.561250241 3.42615724282483 2528.62530906906 213.725684586035 -67.6279592402368 14756.81329518 T 9 CATAB v2.0f-lin.ifort 2020-Feb-25 09:23:01 2020-Feb-25 09:23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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