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134639 (1999 UH38)
Classification: Main-belt Asteroid          SPK-ID: 2134639
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1473248592508395 4.3582e-08  
a 2.297293754952407 1.1512e-08 au
q 1.958845275846211 1.0322e-07 au
i 7.776476979945482 4.8494e-06 deg
node 359.725843454908 3.5283e-05 deg
peri 340.1993269599247 3.9126e-05 deg
M 10.42966651401042 1.8852e-05 deg
tp 2458963.653932254420
(2020-Apr-24.15393225)
6.6497e-05 TDB
period 1271.812897429683
3.48
9.5597e-06
2.617e-08
d
yr
n .2830605042043175 2.1277e-09 deg/d
Q 2.635742234058603 1.3208e-08 au
  Orbit Determination Parameters
   # obs. used (total)      634  
   data-arc span      7659 days (20.97 yr)  
   first obs. used      1999-10-03  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .583  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 20:37:25  

Additional Information
 Earth MOID = .952704 au 
 Jupiter MOID = 2.75451 au 
 T_jup = 3.567 
[ 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 15.8   n/a MPO338173  

134639 (1999 UH38)          Discovered 1999-Oct-17 by LONEOS at Anderson Mesa
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

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