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120933 (1998 SL147)
Classification: Main-belt Asteroid          SPK-ID: 2120933
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2048281610375021 3.2692e-08  
a 2.162165584950419 5.8979e-09 au
q 1.71929318432645 7.2042e-08 au
i 1.821390952238793 2.9679e-06 deg
node 86.7006908715171 0.00011311 deg
peri 246.5821102085753 0.00011366 deg
M 26.78712681806205 8.2279e-06 deg
tp 2459114.091695101751
(2020-Sep-21.59169510)
2.6608e-05 TDB
period 1161.266378983016
3.18
4.7515e-06
1.301e-08
d
yr
n .3100063917421527 1.2684e-09 deg/d
Q 2.605037985574388 7.1059e-09 au
  Orbit Determination Parameters
   # obs. used (total)      935  
   data-arc span      8133 days (22.27 yr)  
   first obs. used      1998-09-20  
   last obs. used      2020-12-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49037  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:26:14  

Additional Information
 Earth MOID = .708129 au 
 Jupiter MOID = 2.75791 au 
 T_jup = 3.668 
[ 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 16.66   n/a E2021B55  
diameter diameter 2.985 km 0.209 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.05 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]
geometric albedo albedo 0.060   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

120933 (1998 SL147)          Discovered 1998-Sep-20 by Elst, E. W. at La Silla
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1998 SL147 = 2000 DL88 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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