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295718 (2008 UN38)
Classification: Main-belt Asteroid          SPK-ID: 2295718
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2027334518119182 3.5728e-08  
a 2.269089868056744 1.3777e-08 au
q 1.80906944663415 8.5422e-08 au
i 1.602581171344326 4.0652e-06 deg
node 293.1787862859759 0.00018994 deg
peri 348.6331743518992 0.00019049 deg
M 246.6878100399214 1.7899e-05 deg
tp 2459393.461591610771
(2021-Jun-27.96159161)
6.4539e-05 TDB
period 1248.463850444671
3.42
1.1371e-05
3.113e-08
d
yr
n .2883543643428501 2.6262e-09 deg/d
Q 2.729110289479337 1.6571e-08 au
  Orbit Determination Parameters
   # obs. used (total)      227  
   data-arc span      9246 days (25.31 yr)  
   first obs. used      1994-10-10  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57416  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 16:41:58  

Additional Information
 Earth MOID = .792634 au 
 Jupiter MOID = 2.41621 au 
 T_jup = 3.586 
[ 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 17.8   n/a MPO460241  

295718 (2008 UN38)          Discovered 2008-Oct-20 by Spacewatch at Kitt Peak
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

Alternate Designations
 2008 UN38 = 1994 TG11 = 2005 YN12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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