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15054 (1998 YS5)
Classification: Main-belt Asteroid          SPK-ID: 2015054
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1081941945601227 3.2947e-08  
a 2.992696942335342 1.3847e-08 au
q 2.668904507096828 9.887e-08 au
i 11.53796958013131 3.0864e-06 deg
node 110.2857517094848 1.7779e-05 deg
peri 288.3172973779239 2.3423e-05 deg
M 186.6847818132929 1.6872e-05 deg
tp 2460306.888439442902
(2023-Dec-28.38843944)
9.0843e-05 TDB
period 1891.004388583931
5.18
1.3124e-05
3.593e-08
d
yr
n .1903750209007099 1.3212e-09 deg/d
Q 3.316489377573856 1.5345e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2582  
   data-arc span      10960 days (30.01 yr)  
   first obs. used      1991-08-06  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44925  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 21:21:08  

Additional Information
 Earth MOID = 1.70483 au 
 Jupiter MOID = 2.09044 au 
 T_jup = 3.216 
[ 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 12.75   n/a MPO636291  
diameter diameter 9.567 km 0.151 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.65293 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.232   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15054 (1998 YS5)          Discovered 1998-Dec-21 by Kobayashi, T. at Oizumi
Reference: 20000523/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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