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15018 (1998 SM34)
Classification: Main-belt Asteroid          SPK-ID: 2015018
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2231834397003303 3.1988e-08  
a 2.343901967326209 6.6545e-09 au
q 1.820781863937975 7.2975e-08 au
i 10.56755739239519 3.1924e-06 deg
node 14.75907931776525 2.1735e-05 deg
peri 51.88940090504798 2.4638e-05 deg
M 28.29769926787166 9.4177e-06 deg
tp 2459097.471774875986
(2020-Sep-04.97177488)
3.4328e-05 TDB
period 1310.71295562025
3.59
5.5818e-06
1.528e-08
d
yr
n .2746596792656576 1.1697e-09 deg/d
Q 2.867022070714444 8.1397e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1666  
   data-arc span      17335 days (47.46 yr)  
   first obs. used      1973-09-27  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43507  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:45:15  

Additional Information
 Earth MOID = .853121 au 
 Jupiter MOID = 2.54045 au 
 T_jup = 3.506 
[ 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 14.49   n/a E2021B10  
diameter diameter 6.811 km 0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 90.0999 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 0.077   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15018 (1998 SM34)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20000523/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SM34 = 1973 SZ4 = 1973 UH4 = 1991 VH13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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