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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1534797069761731 3.6062e-08  
a 2.258583705416203 6.0539e-09 au
q 1.911936940127765 8.2845e-08 au
i 5.979015955547543 3.6903e-06 deg
node 309.9216508049798 3.2536e-05 deg
peri 38.99491658729792 3.4251e-05 deg
M 326.3095047203418 1.0569e-05 deg
tp 2459512.526611086870
(2021-Oct-25.02661109)
3.6456e-05 TDB
period 1239.803085248583
3.39
4.9847e-06
1.365e-08
d
yr
n .2903686918377199 1.1675e-09 deg/d
Q 2.605230470704641 6.983e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1701  
   data-arc span      12431 days (34.03 yr)  
   first obs. used      1987-07-28  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46398  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 21:26:26  

Additional Information
 Earth MOID = .908307 au 
 Jupiter MOID = 2.80325 au 
 T_jup = 3.599 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457520.5 (2016-May-12.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1531409805333014 3.6144e-08  
q 1.912548069401494 8.2905e-08 au
tp 2457032.383047592569
(2015-Jan-09.88304759)
3.6582e-05 TDB
node 310.0174711588465 3.2495e-05 deg
peri 38.70457876040057 3.4221e-05 deg
i 5.983193713476791 3.6924e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1701  
   data-arc span      12431 days (34.03 yr)  
   first obs. used      1987-07-28  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46398  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 21:26:26  

Additional Information
 Jupiter MOID = 2.80325 au 
 T_jup = 3.599 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.306417538807917E-15 -2.991121130142571E-15 1.168378293978238E-15 -1.317609243444181E-14 -1.741240842174653E-14 -9.975476944047291E-16
q -2.991121130142571E-15 6.873312529308638E-15 -2.724731978348154E-14 3.048098932522238E-14 3.510050449196417E-14 2.356837299434798E-15
tp 1.168378293978238E-15 -2.724731978348154E-14 1.338274184463128E-9 -3.187681246656631E-12 4.019950554856577E-10 -1.932259723511196E-12
node -1.317609243444181E-14 3.048098932522238E-14 -3.187681246656631E-12 1.055946092583393E-9 -1.050217989549905E-9 1.565917893211761E-11
peri -1.741240842174653E-14 3.510050449196417E-14 4.019950554856577E-10 -1.050217989549905E-9 1.171047335343423E-9 -1.610718090723948E-11
i -9.975476944047291E-16 2.356837299434798E-15 -1.932259723511196E-12 1.565917893211761E-11 -1.610718090723948E-11 1.363384925721945E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.89   n/a MPO636297  
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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