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423512 (2005 UM42)
Classification: Main-belt Asteroid          SPK-ID: 2423512
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1526370090352429 6.6511e-08  
a 2.569055071889845 2.8987e-08 au
q 2.176922189669758 1.878e-07 au
i 8.116840554551565 7.3737e-06 deg
node 212.7606421618084 5.8478e-05 deg
peri 197.7302376889399 7.9618e-05 deg
M 184.4034171712184 5.9169e-05 deg
tp 2459734.121596161123
(2022-Jun-03.62159616)
0.00025776 TDB
period 1504.0370966417
4.12
2.5456e-05
6.969e-08
d
yr
n .2393557983402329 4.051e-09 deg/d
Q 2.961187954109932 3.3412e-08 au
  Orbit Determination Parameters
   # obs. used (total)      202  
   data-arc span      6755 days (18.49 yr)  
   first obs. used      2001-10-23  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60088  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 02:38:41  

Additional Information
 Earth MOID = 1.18853 au 
 Jupiter MOID = 2.42175 au 
 T_jup = 3.400 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457147.5 (2015-May-05.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1522964525635467 6.5182e-08  
q 2.178988076291226 1.8344e-07 au
tp 2456727.749446541818
(2014-Mar-11.24944654)
0.00021794 TDB
node 212.7842739174646 5.851e-05 deg
peri 198.2104874315655 7.9802e-05 deg
i 8.112833032796265 7.3712e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      202  
   data-arc span      6755 days (18.49 yr)  
   first obs. used      2001-10-23  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60088  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 02:38:41  

Additional Information
 Jupiter MOID = 2.42175 au 
 T_jup = 3.400 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.248659052895406E-15 -1.189678019056066E-14 -1.060047484101381E-11 -1.172954871214708E-13 -2.612474461371006E-12 -2.581336655118235E-16
q -1.189678019056066E-14 3.364930106196389E-14 3.118542825584669E-11 3.451531507635555E-13 7.707932959493894E-12 1.043611460680269E-15
tp -1.060047484101381E-11 3.118542825584669E-11 4.749961323140057E-8 4.859928437147034E-10 1.193573879536996E-8 -1.165294003518576E-12
node -1.172954871214708E-13 3.451531507635555E-13 4.859928437147034E-10 3.423421984850719E-9 -3.261842866748786E-9 -2.764351353363636E-10
peri -2.612474461371006E-12 7.707932959493894E-12 1.193573879536996E-8 -3.261842866748786E-9 6.368391555953546E-9 2.734499829462701E-10
i -2.581336655118235E-16 1.043611460680269E-15 -1.165294003518576E-12 -2.764351353363636E-10 2.734499829462701E-10 5.433433254702879E-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 17.1   n/a MPO423497  

423512 (2005 UM42)          Discovered 2005-Oct-22 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-02-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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