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129987 (1999 UL62)
Classification: Inner Main-belt Asteroid          SPK-ID: 2129987
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06930525947548777 4.2249e-08  
a 1.899151306904072 8.8256e-09 au
q 1.767530132795873 7.8844e-08 au
i 21.837136524695 6.3331e-06 deg
node 66.79007205790796 1.2337e-05 deg
peri 96.68874703292816 4.8254e-05 deg
M 200.8144235323045 4.3772e-05 deg
tp 2459423.206562871044
(2021-Jul-27.70656287)
0.00011576 TDB
period 955.9557216822186
2.62
6.6637e-06
1.824e-08
d
yr
n .3765864797236625 2.6251e-09 deg/d
Q 2.03077248101227 9.4373e-09 au
  Orbit Determination Parameters
   # obs. used (total)      407  
   data-arc span      7685 days (21.04 yr)  
   first obs. used      1998-04-28  
   last obs. used      2019-05-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57195  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:07:08  

Additional Information
 Earth MOID = .841406 au 
 Jupiter MOID = 3.04861 au 
 T_jup = 3.859 
[ 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 16.6   n/a MPO366673  

129987 (1999 UL62)          Discovered 1999-Oct-31 by CSS at Catalina
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

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