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442705 (2012 UD125)
Classification: Main-belt Asteroid          SPK-ID: 2442705
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1844689968141756 1.4034e-07  
a 2.540466246715906 1.819e-08 au
q 2.071828986743949 3.6493e-07 au
i 4.76004608592355 8.5928e-06 deg
node 271.8409851002718 0.00012183 deg
peri 103.8273004162533 0.00012633 deg
M 74.79760103863556 2.5493e-05 deg
tp 2459089.206241792540
(2020-Aug-27.70624179)
0.00010647 TDB
period 1479.001350558603
4.05
1.5885e-05
4.349e-08
d
yr
n .2434074856415999 2.6142e-09 deg/d
Q 3.009103506687863 2.1545e-08 au
  Orbit Determination Parameters
   # obs. used (total)      163  
   data-arc span      5894 days (16.14 yr)  
   first obs. used      2004-11-20  
   last obs. used      2021-01-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51901  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 12:14:37  

Additional Information
 Earth MOID = 1.07867 au 
 Jupiter MOID = 2.48964 au 
 T_jup = 3.417 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457877.5 (2017-May-04.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1865249973036569 1.4106e-07  
q 2.06543537733623 3.6748e-07 au
tp 2457609.951289892218
(2016-Aug-09.45128989)
0.00011434 TDB
node 271.890619756546 0.00012204 deg
peri 103.6421060416046 0.00012643 deg
i 4.757486674080433 8.6025e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      163  
   data-arc span      5894 days (16.14 yr)  
   first obs. used      2004-11-20  
   last obs. used      2021-01-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51901  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 12:14:37  

Additional Information
 Jupiter MOID = 2.48964 au 
 T_jup = 3.417 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.989678789719128E-14 -5.180612794216063E-14 1.163013563930947E-11 -5.056808245181505E-13 3.166316888606649E-12 -7.126835360311892E-14
q -5.180612794216063E-14 1.350422190762706E-13 -3.068524227434012E-11 1.326003277380786E-12 -8.369747836229311E-12 1.858956132374597E-13
tp 1.163013563930947E-11 -3.068524227434012E-11 1.307336747583805E-8 -3.590473810635532E-10 3.926426565793174E-9 -4.881021929931475E-11
node -5.056808245181505E-13 1.326003277380786E-12 -3.590473810635532E-10 1.489330939006328E-8 -1.492973754115386E-8 -8.372356781926994E-10
peri 3.166316888606649E-12 -8.369747836229311E-12 3.926426565793174E-9 -1.492973754115386E-8 1.598500347708824E-8 8.226375873571558E-10
i -7.126835360311892E-14 1.858956132374597E-13 -4.881021929931475E-11 -8.372356781926994E-10 8.226375873571558E-10 7.400272996475867E-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 17.59   n/a MPCxxxxx  

442705 (2012 UD125)          Discovered 2004-Nov-20 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

Alternate Designations
 2012 UD125 = 2004 XU113 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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