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180213 (2003 UM8)
Classification: Main-belt Asteroid          SPK-ID: 2180213
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1065346389178636 6.9371e-08  
a 2.135997467983682 1.1428e-08 au
q 1.90843974900257 1.5371e-07 au
i 4.324996827084696 7.1307e-06 deg
node 331.4202059107967 4.9232e-05 deg
peri 10.14617317643647 5.511e-05 deg
M 229.1359099997455 2.7611e-05 deg
tp 2459614.993301025694
(2022-Feb-04.49330103)
8.9629e-05 TDB
period 1140.248546174582
3.12
9.1512e-06
2.505e-08
d
yr
n .3157206393358391 2.5338e-09 deg/d
Q 2.363555186964795 1.2646e-08 au
  Orbit Determination Parameters
   # obs. used (total)      432  
   data-arc span      10280 days (28.15 yr)  
   first obs. used      1992-01-31  
   last obs. used      2020-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52522  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:25:36  

Additional Information
 Earth MOID = .898134 au 
 Jupiter MOID = 2.95723 au 
 T_jup = 3.707 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456775.5 (2014-Apr-28.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1067456655967296 6.9423e-08  
q 1.908067842773183 1.5383e-07 au
tp 2457333.794158661303
(2015-Nov-07.29415866)
7.8163e-05 TDB
node 331.4886262244358 4.9206e-05 deg
peri 10.01044589254268 5.5032e-05 deg
i 4.326967408387572 7.1318e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      432  
   data-arc span      10280 days (28.15 yr)  
   first obs. used      1992-01-31  
   last obs. used      2020-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52522  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:25:36  

Additional Information
 Jupiter MOID = 2.95723 au 
 T_jup = 3.707 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.819593129426062E-15 -1.066256891802554E-14 -3.637663267767746E-12 9.766924934095528E-15 -1.14037116237174E-12 -1.036567139875323E-14
q -1.066256891802554E-14 2.36649902852995E-14 8.187708587090189E-12 -2.264727280684661E-14 2.554753299116035E-12 2.314319229869294E-14
tp -3.637663267767746E-12 8.187708587090189E-12 6.10939196297604E-9 1.54187553898189E-12 1.930099168374193E-9 6.61987521724613E-12
node 9.766924934095528E-15 -2.264727280684661E-14 1.54187553898189E-12 2.421225296225822E-9 -2.41289545195478E-9 -1.134638419048537E-10
peri -1.14037116237174E-12 2.554753299116035E-12 1.930099168374193E-9 -2.41289545195478E-9 3.028535855813099E-9 1.151554527132809E-10
i -1.036567139875323E-14 2.314319229869294E-14 6.61987521724613E-12 -1.134638419048537E-10 1.151554527132809E-10 5.086283400911567E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.91   n/a E2021B55  

180213 (2003 UM8)          Discovered 2003-Oct-19 by Young, J. W. at Wrightwood
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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