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15455 (1998 YJ3)
Classification: Main-belt Asteroid          SPK-ID: 2015455
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1532798966991955 4.8826e-08  
a 2.257862013119372 7.4289e-09 au
q 1.911777156987397 1.0885e-07 au
i 5.979329945791847 3.8108e-06 deg
node 309.9205905896497 4.0223e-05 deg
peri 39.12877401771183 4.2318e-05 deg
M 211.1369039322022 1.5469e-05 deg
tp 2459512.923535719050
(2021-Oct-25.42353572)
5.4421e-05 TDB
period 1239.208895499811
3.39
6.1159e-06
1.674e-08
d
yr
n .2905079210674976 1.4338e-09 deg/d
Q 2.603946869251347 8.5676e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1436  
   data-arc span      11963 days (32.75 yr)  
   first obs. used      1987-07-28  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47906  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:11:33  

Additional Information
 Earth MOID = .909016 au 
 Jupiter MOID = 2.80513 au 
 T_jup = 3.599 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8   n/a MPO358781  
diameter diameter 2.356 km 0.605 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.504   0.095 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15455 (1998 YJ3)          Discovered 1998-Dec-17 by Kobayashi, T. at Oizumi
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 YJ3 = 1987 OB1 = 1989 AM6 = 1994 TR15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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