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1506 Xosa (1939 JC)
Classification: Main-belt Asteroid          SPK-ID: 2001506
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 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2595548820689005 1.2555e-08  
a 2.573119499933624 7.7062e-09 au
q 1.905253771579164 3.2155e-08 au
i 12.54737773404956 8.7291e-07 deg
node 234.51310028374 2.8989e-06 deg
peri 45.33275617333341 5.2119e-06 deg
M 264.6271863667148 7.6742e-06 deg
tp 2459599.902202340019
(2022-Jan-20.40220234)
3.3433e-05 TDB
period 1507.607748632317
4.13
6.7727e-06
1.854e-08
d
yr
n .238788902701374 1.0727e-09 deg/d
Q 3.240985228288084 9.7064e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2861  
   data-arc span      29898 days (81.86 yr)  
   first obs. used      1939-05-15  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40369  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 19:32:19  

Additional Information
 Earth MOID = .909792 au 
 Jupiter MOID = 1.9493 au 
 T_jup = 3.348 
[ 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 12.07   n/a E2021B10  
diameter diameter 13.963 km 0.702 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 292. 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:
[Warner, B.D. (2011) Minor Planet Bull. 38, 82-86.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.157   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1506 Xosa (1939 JC)          Discovered 1939-May-15 by Jackson, C. at Johannesburg (UO)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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