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52870 (1998 SC26)
Classification: Main-belt Asteroid          SPK-ID: 2052870
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2452314427292535 4.0098e-08  
a 2.358659935832438 7.6757e-09 au
q 1.780242356860561 9.5036e-08 au
i 5.920411972098043 4.3778e-06 deg
node 135.4003042537041 3.6865e-05 deg
peri 194.1001961180128 3.7645e-05 deg
M 270.4483241640563 7.6384e-06 deg
tp 2458929.630128143788
(2020-Mar-21.13012814)
2.8761e-05 TDB
period 1323.111432876234
3.62
6.4586e-06
1.768e-08
d
yr
n .2720859264419001 1.3282e-09 deg/d
Q 2.937077514804315 9.558e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1082  
   data-arc span      7538 days (20.64 yr)  
   first obs. used      1998-09-19  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54136  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:47:58  

Additional Information
 Earth MOID = .768807 au 
 Jupiter MOID = 2.42145 au 
 T_jup = 3.505 
[ 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 15.4   n/a MPO385156  
diameter diameter 5.526 km 0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.126138 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.054   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52870 (1998 SC26)          Discovered 1998-Sep-22 by LONEOS at Anderson Mesa
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 SC26 = 2000 BD22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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