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13228 (1997 SJ25)
Classification: Main-belt Asteroid          SPK-ID: 2013228
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1636280234257059 3.3295e-08  
a 3.161791521862229 1.6471e-08 au
q 2.644433824655758 1.0473e-07 au
i 2.996740456458943 3.4323e-06 deg
node 79.77182885836159 8.5263e-05 deg
peri 211.2809725977635 8.6177e-05 deg
M 3.643527897228671 1.2678e-05 deg
tp 2458579.716538987687
(2019-Apr-06.21653899)
7.2318e-05 TDB
period 2053.516859339433
5.62
1.6046e-05
4.393e-08
d
yr
n .1753090062848587 1.3699e-09 deg/d
Q 3.679149219068701 1.9166e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2008  
   data-arc span      10215 days (27.97 yr)  
   first obs. used      1991-09-15  
   last obs. used      2019-09-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51365  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:14:23  

Additional Information
 Earth MOID = 1.62811 au 
 Jupiter MOID = 1.50641 au 
 T_jup = 3.182 
[ 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 12.8   n/a MPO431654  
diameter diameter 12.507 km 0.149 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 25.385 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.113   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13228 (1997 SJ25)          Discovered 1997-Sep-29 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: 20000124/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 SJ25 = 1986 UA3 = 1991 RF37 = 1995 FH18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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