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13802 (1998 WR3)
Classification: Main-belt Asteroid          SPK-ID: 2013802
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1530595956627926 2.7325e-08  
a 2.255430146705017 7.4978e-09 au
q 1.910214920404674 6.2529e-08 au
i 7.893161091942802 3.3567e-06 deg
node 58.28273646801119 2.3795e-05 deg
peri 224.3326696680503 2.6949e-05 deg
M 252.1241242163775 1.4418e-05 deg
tp 2459371.235634910093
(2021-Jun-05.73563491)
5.0245e-05 TDB
period 1237.207370027171
3.39
6.1693e-06
1.689e-08
d
yr
n .2909778980641652 1.451e-09 deg/d
Q 2.60064537300536 8.6454e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2355  
   data-arc span      14113 days (38.64 yr)  
   first obs. used      1981-10-30  
   last obs. used      2020-06-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45822  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:44:04  

Additional Information
 Earth MOID = .902944 au 
 Jupiter MOID = 2.53346 au 
 T_jup = 3.596 
[ 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 13.8   n/a MPO347634  
diameter diameter 4.130 km 0.079 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.26311 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 0.376   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13802 (1998 WR3)          Discovered 1998-Nov-18 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20000222/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 WR3 = 1981 UD7 = 1997 JK16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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