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JPL Small-Body Database Browser
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17181 (1999 UM3)
Classification: Apollo [NEO]          SPK-ID: 2017181
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 58 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6730356828358045 5.8134e-08  
a 2.371799440907804 8.004e-09 au
q .7754937846468408 1.3755e-07 au
i 10.6517638313672 7.6325e-06 deg
node 113.5655776135692 3.4906e-05 deg
peri 36.81252020122804 3.4778e-05 deg
M 95.52268810960538 7.4419e-06 deg
tp 2458246.486841295246
(2018-May-07.98684130)
2.6794e-05 TDB
period 1334.18290100335
3.65
6.7536e-06
1.849e-08
d
yr
n .2698280720951138 1.3659e-09 deg/d
Q 3.968105097168767 1.3391e-08 au
  Orbit Determination Parameters
   # obs. used (total)      262  
   data-arc span      23319 days (63.84 yr)  
   first obs. used      1955-10-24  
   last obs. used      2019-08-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60514  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Aug-29 05:22:17  

Additional Information
 Earth MOID = .0700723 au 
 Jupiter MOID = 1.12944 au 
 T_jup = 3.175 
[ 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 16.4   n/a MPO452414  

17181 (1999 UM3)          Discovered 1999-Oct-19 by LINEAR at Socorro
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

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