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344301 (2001 UM87)
Classification: Main-belt Asteroid          SPK-ID: 2344301
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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .200772291136069 2.2067e-07  
a 2.351731002216671 1.2042e-08 au
q 1.879568580765906 5.2018e-07 au
i 4.121101786965879 9.8372e-06 deg
node 342.6559817579952 8.9658e-05 deg
peri 16.05012979765371 0.00010888 deg
M 73.28601244948732 3.5438e-05 deg
tp 2458732.337228967682
(2019-Sep-05.83722897)
0.00012971 TDB
period 1317.285445680023
3.61
1.0118e-05
2.77e-08
d
yr
n .2732892868289128 2.0991e-09 deg/d
Q 2.823893423667436 1.446e-08 au
  Orbit Determination Parameters
   # obs. used (total)      108  
   data-arc span      6608 days (18.09 yr)  
   first obs. used      2001-09-28  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52991  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 22:56:20  

Additional Information
 Earth MOID = .876149 au 
 Jupiter MOID = 2.62668 au 
 T_jup = 3.526 
[ 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 18.3   n/a MPO503387  

344301 (2001 UM87)          Discovered 2001-Oct-21 by Spacewatch at Kitt Peak
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

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